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Humboldts Secret

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When purchasing a product, price is the consumer's primary concern. At present, Humboldts Secret has 66 products for sale. Humboldts Secret products range in price from $19.97 to $148.14, and the average price of all the products is about $42.91.

We found that most of the Humboldts Secret products are manufactured by HS Supplies, LLC. The manufacturer provides Humboldts Secret with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Humboldts Secret products from the seller Green Supplies. The brand holds an average rating of 4.5, testifying to its excellent reputation.

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Last Updated: Jan 12, 2025

Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants

Garden Fertilizers
Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants Cover
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COMPLETE MACRONUTRIENT PROFILE FOR PLANT NUTRITION: The combination of our Base A & B Bundle results in a complete feed for rapidly growing flowering plants and indoor plants. Our signature blend consists of Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, and more.
EASY-TO-USE TWO-PART SYSTEM: Simple use both bottles at equal rates throughout the entire growing cycle, from the beginning of the vegetative stage until the end of the flowering stage. We recommend application with every watering for maximum results.
HYDROPONICS EXCELLENCE FOR ALL CULTIVATION MEDIUMS: Our cutting-edge system excels in hydroponics, delivering exceptional performance across all grow mediums, whether it's for indoor plants in potting soil, aquaponics setups, or coco coir cultivations.
COMMERCIAL-GRADE AND GARDEN-FRIENDLY: Our two-part base system is both commercial-grade and garden-friendly, ensuring the optimal health of your plants and flowers. It's made from quality ingredients that are 100% water soluble and pH-balanced for ease of use.
APPROPRIATE FOR ALL PLANT LIFE: Base nutrients are the building blocks of all plant life. Thousands of home and commercial growers use Humboldts Secret Grow & Bloom Base System. It works on all plants, trees, flowers, bushes, and lawns.

Humboldts Secret Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron

Garden Fertilizers
Humboldts Secret Starter Kit Pack – World's Best Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B – Golden Tree – Flower Stacker – Plant Enzymes – CalMag & Iron Cover
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GROW THE PERFECT CROP: With our nutrients you will be able to grow the perfect crop. Our starter kit is proven to make the perfect harvest and it will save you time and pain to get there.
MAKES 125-150 GALLONS OF SOLUTION: Enjoy between 125 and 150 gallons of premium-quality nutrient solution to provide proper care and food for potting soil for indoor plants and outdoor plants. Base A & B (Quart Set), Flower Stacker (Quart), Calmag & Iron (Quart), Golden Tree (16 Ounce), Plant Enzymes (8 Ounce)
COMPATIBLE IN ALL GROW MEDIUMS: Perfectly suited for use in all growing mediums. Whether it's gravel, sand, coco mix, or hydroponics, Humboldts Secret Starter Kit will help your plants!
MADE WITH THE FINEST INGREDIENTS: All Humboldts Secret products are made with quality ingredients. Our Starter Kit gives you all the essential nutrients as well as some additional supplements to start your growing journey!
MADE IN THE USA: Each one of our Humboldts Secret products is proudly made in the USA using quality ingredients to ensure an optimal indoor and outdoor plant fertilizer.

Humboldts Secret Golden Tree: Best Plant Food for Plants & Trees - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, Lawns, Roses, Tomatoes & More (16 Ounce)

Garden Fertilizers
Humboldts Secret Golden Tree: Best Plant Food for Plants & Trees - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, Lawns, Roses, Tomatoes & More (16 Ounce) Cover
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FOR ANY PLANT: Our Golden Tree formula is an all-in-one additive for any plant, tree, flower or bush. When used with a well-balanced fertilizer, Golden Tree helps improve soil/foliar nutrient conditions for better crop yields. In addition to improving overall plant nutrition, Golden Tree supports conditions for better plant establishment, nutrient uptake and abiotic stress tolerance.
GROW METHOD COMPATIBLE: No matter what grow method you're using, Humboldts Secret Golden Tree solution will help feed growing plants. It's designed to be compatible in all mediums - hydroponics, aeroponics, coco, DWC, soil, and every other type of growing method.
ESSENTIAL NUTRIENTS: Golden Tree can help provide essential nutrients to your garden that it isn't getting now. Our formula contains a mixture of kelp, carbs and minerals. It can be used in conjunction with other additives and fertilizers or as the only additive.
SMALL & STRONG: Our 16-ounce solution makes up to 224 gallons of an easy-to-use additive solution to feed your plants. This is a professional-quality fertilizer that can transform any home and garden and give anyone a green thumb!

Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 32 Ounces

Garden Fertilizers
Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 32 Ounces Cover
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CARBOHYDRATE/SACCHARIDE ENERGY SOURCE: Our Sweet & Sticky formula contains a rich source of carbohydrates and energy that is suitable for organic soil and all indoor or outdoor plants and is effective in all mediums.
SUPPORTS A THRIVING ROOT ZONE: A thriving root zone directly impacts your plants' most profitable features. Ensure your plants have all the energy they need by feeding them Sweet & Sticky.
FLAVOR, AROMA, AND ESSENTIAL OILS: Sweet & Sticky supports a thriving root zone which in turn will aid in your plants natural ability to enhance natural flavor, aroma, and essential oils in all sorts of indoor and outdoor plants thanks to its abundant source of carbohydrates, saccharide energy, and microbe food.
SUITABLE FOR HYDROPONIC, COCO, AND SOIL CULTIVATION: Sweet & Sticky is perfectly suited for multiple growing mediums, such as hydroponics and aquaponic systems, coco mixes, organic soil, and potting soil for indoor plants.
BETTER CROP YIELD: A high concentration of carbohydrates improves nutrient conditions for better crop yield and size. Our powerful formula also aids in the plant's natural ability to increase resin production during the flowering phase.

Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Quart

Garden Fertilizers
Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Quart Cover
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SOURCE OF CALCIUM MAGNESIUM & CHELATED IRON: Many varieties of flowering plants require higher levels of these micronutrients. Our well-balanced formula is designed to specifically address any plant deficiencies that may be present.
CORRECTS COMMON PLANT DEFICIENCIES: Sometimes an unhealthy plant may be suffering from a nutrient deficiency or even too much of one nutrient. Our CalMag & Iron supplement effectively corrects and remedies these micronutrient plant deficiencies.
NUTRIENT UPTAKE AND ABSORPTION: This formulae efficiently supports nutrient uptake and absorption by addressing any plant deficiencies in the first place, thus successfully supporting the vegetative and flowering stage of your plants.
SUITABLE FOR HYDROPONICS, SOIL, AND CONTAINER GARDENS: Nutrient systems and supplements are commonly used as hydroponic supplies and are a good solution for soil and container gardens, ensuring strong and healthy plants and yields.
OPTIMAL FOR COCO COIR MEDIUM AND REVERSE OSMOSIS WATER: Our supplemental CalMag & Iron by Humboldts Secret is highly recommended for plants growing in coco substrate or reverse osmosis water, as the absorption process becomes magnified.

Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food - Nutrient System for Potting Soil for Indoor Plants & Outdoor Plants - 1 Quart

Garden Fertilizers
Humboldts Secret Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food - Nutrient System for Potting Soil for Indoor Plants & Outdoor Plants - 1 Quart Cover
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INCREASE YIELDS BY UP TO 30%: Flower Stacker is a flowering additive designed to help your plants natural ability to increase yield and flower density. It's an ideal nutrient solution for potting soil for indoor plants and outdoor plants.
PREMIUM INGREDIENTS: Our Humboldts Secret Flower Stacker is made with quality ingredients to ensure the development of your flowers. Perfectly suited for potting soil for indoor plants!
CONTAINS VITAMIN B1: Vitamin B1 has been touted as a cure-all for transplant shock. Labels typically claim that B1 supports conditions for better plant establishment and growth in a wide range of plants.
HIGH AMOUNTS OF PHOSPHORUS AND POTASSIUM: Application of phosphorus and potassium during the flower development phase improves soil/foliar nutrient conditions for better crop yields.
ADDED FLOWERING AGENT TO YOUR REGIME: Flowering boosters are particularly important in hydroponic and agricultural industries. Thousands of growers use Flower Stacker as an additional flowering agent to maximize their yields by harnessing the power of our clean-running formula.

Humboldts Secret Tree Trunk - Silicate Additive - Advanced Nutrients - Helps Plants Flourish - Indoor Plant Food - Hydroponic Nutrients - Liquid Fertilizer (32 Ounce)

Garden Fertilizers
Humboldts Secret Tree Trunk - Silicate Additive - Advanced Nutrients - Helps Plants Flourish - Indoor Plant Food - Hydroponic Nutrients - Liquid Fertilizer (32 Ounce) Cover
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PREMIUM POTASSIUM SILICATE-BASED PRODUCT: Tree Trunk features advanced nutrients that will help the plants natural ability to strengthen its cell walls, resulting in thicker stalks and better branch development, as well as abiotic stress tolerance!
PLANT STRENGTH: Watch your plants grow by applying Tree Trunk liquid fertilizer. Hydroponic nutrients make our product suitable as quality indoor plant food.
ABIOTIC STRESS TOLERANCE: Tree Trunk is needed to ensure yield stability under abiotic stress and minimizes the environmental impacts on crop production.
COMPATIBLE IN ALL GROW MEDIUMS: This formula makes for an excellent indoor plant fertilizer suitable for all grow mediums. The usage rate is between 2.5-5ml/gallon (5ml is approx. 1 teaspoon) throughout the entire grow cycle.
THICK STALKS & BETTER BRANCH DEVELOPMENT: Our healthy liquid fertilizer will help your plants natural ability to achieve sturdy, thick silks as well as strong and abundant branches.

Humboldts Secret Flower Shield – Powerful Insecticide – Pesticide – Miticide – Fungicide – Bug Spray – Spider Spray – Plant and Flower Protection – Healthy Treatment for Pests and Fungus (8 Ounce)

Pest Repellents Repellent Sprays
Humboldts Secret Flower Shield – Powerful Insecticide – Pesticide – Miticide – Fungicide – Bug Spray – Spider Spray – Plant and Flower Protection – Healthy Treatment for Pests and Fungus (8 Ounce) Cover
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EXEMPT FROM EPA REGISTRATION: Humboldts Secret takes pride in creating products for your plants. You'll be pleased to know that Flower Shield is made from products exempt from EPA registration under minimum risk pesticides according to FIFRA 25(b).
PEST MANAGEMENT: Flower Shield by Humboldts Secret is a pest management alternative that works as both a preventative and knock-down treatment for pests and fungus.
INSECTICIDE, PESTICIDE & MITICIDE: Our Flower Shield formula will kill mites and their eggs, while also controlling powdery mildew. Weekly applications will create an environment that is lethal to pests and fungal spores, but not your plants.
WORKS ON CONTACT, NO IMMUNITY BUILDUP: Flower Shield is an insecticide, fungicide, and miticide that works on contact and does not allow immunity buildup. Insects cannot become immune to the ingredients found in Flower Shield.
CONTROLS POWDERY MILDEW: Our formula contains effective ingredients that control and prevent naturally without harming or affecting the environment of your plants in any way.

Humboldts Secret Starter Kit 2 - Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B - Golden Tree - Flower Stacker - Plant Enzymes - CalMag & Iron - Sweet & Sticky - Tree Trunk

Garden Fertilizers
Humboldts Secret Starter Kit 2 - Indoor & Outdoor Plant Fertilizer and Nutrient System: Base A & B - Golden Tree - Flower Stacker - Plant Enzymes - CalMag & Iron - Sweet & Sticky - Tree Trunk Cover
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GROW THE PERFECT CROP: With our nutrients you will be able to grow the perfect crop. Our starter kit is proven to make the perfect harvest and it will save you time and pain to get there.
MAKES 125-150 GALLONS OF SOLUTION: Enjoy between 125 and 150 gallons of premium-quality nutrient solution to provide proper care and food for potting soil for indoor plants and outdoor plants. Base A & B (Quart Set), Flower Stacker (Quart), Calmag & Iron (Quart), Golden Tree (16 Ounce), Plant Enzymes (8 Ounce), Sweet & Sticky (Quart), Tree Trunk (Quart)
COMPATIBLE IN ALL GROW MEDIUMS: Perfectly suited for use in all growing mediums. Whether it's gravel, sand, coco mix, or hydroponics, Humboldts Secret Starter Kit will help your plants!
MADE WITH THE FINEST INGREDIENTS: All Humboldts Secret products are made with quality ingredients. Our Starter Kit gives you all the essential nutrients as well as some additional supplements to start your growing journey!
MADE IN THE USA: Each one of our Humboldts Secret products is proudly made in the USA using quality ingredients to ensure an optimal indoor and outdoor plant fertilizer.

Humboldts Secret Plant Enzymes – Best Plant and Root Enzymes – 7000 Active Units of Enzyme per Milliliter – Quality Plant Food and Plant Fertilizer – Highly Concentrated – 8 Ounce

Garden Fertilizers
Humboldts Secret Plant Enzymes – Best Plant and Root Enzymes – 7000 Active Units of Enzyme per Milliliter – Quality Plant Food and Plant Fertilizer – Highly Concentrated – 8 Ounce Cover
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CONTAINS 7,000 UNITS OF ACTIVE ENZYME PER MILLILITER: Humboldts Secret Plant Enzymes is a highly concentrated enzymatic formula with 7,000 units/ml of active enzyme, making Plant Enzymes one of the strongest plant fertilizers on the market!
GREAT FOR HYDROPONICS AND COCO SUBSTRATE: Hydroponic and coco substrate benefit greatly from enzymes, as these typically have few microorganisms that digest dead root matter. Our formula is compatible with all growing mediums.
PLANT ENZYMES REJUVENATE SOIL: If you are reusing a soil cultivation, Plant Enzymes acts as plant food that will rejuvenate the soil by breaking down roots from the previous plant.
LOW USAGE RATE: Our strong and highly concentrated enzymatic formula contains 7,000 units of active enzyme per milliliter, which results in a very low usage rate of only 1ml/gallon. Humboldts Secret Plant Enzymes is one of the strongest ones out there!

Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System

Garden Fertilizers
Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System Cover
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Increased Nutrient Absorption: Created to bring pH levels down effectively, the Humboldts Secret pH Down Plant Nutrients Balancer creates a balanced and optimum pH level in your plants' growth medium to maximize nutrient uptake and helps them flourish.
Cost Savings: You need just a few drops of this concentrated solution for maximum effectiveness- which means one bottle can last a very long time. Better output, with minimal increase in your gardening cost! Humboldts Secret pH Down is up to 25% stronger than some leading competitors, meaning a little goes a long way.
Balanced Nutrient Solution & Optimal pH: Most plants enjoy a pH between 5.5 and 6.5. This pH decreaser is made with high-quality commercial-grade phosphoric acid and is 100% dye-free and additives-free, so it's ideal for your beloved botanicals. To use, simply test your nutrient solution with a digital pH meter or pH tester strips, then balance your nutrient solution by using a few drops at a time of pH Down.
Versatile: Use pH Down for plants grown in all growing mediums including soil, water, hydroponic setups, coco, dwc, and more. pH Down is an essential part of your ph control supplies needed for a thriving garden.
Expert Made: Humboldts Secret products are designed by Growers for Growers. Achieve reliable results from our high quality pH Down made with the finest ingredients and proudly manufactured in our California based facility.

Humboldts Secret Golden Tree - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, & More (2 oz) w/Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants (8 oz)

Garden Fertilizers
Humboldts Secret Golden Tree - All-in-One Concentrated Additive - Vegetables, Flowers, Fruits, & More (2 oz) w/Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants (8 oz) Cover
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THIS BUNDLE INCLUDES: Humboldts Secret Golden Tree (2 oz) & Humboldts Secret Sweet & Sticky (8 oz)
UNIVERSAL PLANT NUTRITION: Golden Tree is an all-in-one additive suitable for any plant, tree, flower, or bush. It enhances soil and foliar nutrient conditions, promoting better crop yields and supporting overall plant nutrition, establishment, nutrient uptake, and abiotic stress tolerance. The formula comprises a mixture of kelp, carbs, and minerals, allowing it to be seamlessly used in conjunction with other additives and fertilizers or as the only additive for comprehensive plant nourishment.
VERSATILE AND EFFICIENT: Humboldts Secret's Golden Tree is grow-method compatible, designed to thrive in all mediums, including hydroponics, aeroponics, coco, DWC, soil, and more. The small yet potent 2 ounce solution yields up to 55 gallons of an easy-to-use additive, making it a professional-quality fertilizer that transforms home and garden, fostering a green thumb for all.
ENERGIZING GROWTH: Unleash the potential of your plants with Sweet & Sticky, a formula rich in carbohydrates and energy, tailored for organic soil and compatible with diverse growing environments. This powerful energy source serves as a versatile solution for all indoor or outdoor plants, thriving in hydroponic, coco, and traditional soil cultivation setups.
FLAVOR, AROMA, AND ESSENTIAL OILS: Sweet & Sticky supports a thriving root zone which in turn will aid in your plants natural ability to enhance natural flavor, aroma, and essential oils in all sorts of indoor and outdoor plants thanks to its abundant source of carbohydrates and saccharide energy. Our powerful formula also aids in the plant's natural ability to increase resin production during the flowering phase.

Humboldts Secret pH Up and pH Down Control Kit | Liquid pH Plant Balancer for Soil Gardening & Hydroponics Growing System | Optimal Nutrient Uptake for All Plants (8 Ounces)

Garden Fertilizers
Humboldts Secret pH Up and pH Down Control Kit | Liquid pH Plant Balancer for Soil Gardening & Hydroponics Growing System | Optimal Nutrient Uptake for All Plants (8 Ounces) Cover
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Balanced Nutrient Solution: Use Humboldts Secret pH Up and Down to adjust the pH of your plant nutrients. A balanced pH solution will allow your plants to achieve maximum nutrient absorption resulting in increased plant production.
Optimal pH: Most plants enjoy a pH between 5.5 and 6.5. Use pH Up with potassium hydroxide to raise your nutrient solution, and pH Down with phosphoric acid to lower your nutrient solution. Humboldts Secret pH Up and pH Down are 100% dye free.
Increased Strength: Humboldts Secret pH Up and pH Down are up to 25% stronger than some leading competitors, meaning a little goes a long way. To use, simply test your nutrient solution with a digital pH meter or pH tester strips, then balance your nutrient solution by using a few drops at a time of either pH Up or pH Down.
All Growing Mediums: Use pH Up and pH Down for plants grown in all growing mediums including soil, water, hydroponic setups, coco, dwc, and more. pH Up and down are essential supplies for a thriving garden. Not intended for aquarium or spas.
For Growers: Humboldts Secret products are designed by Growers for Growers. Achieve reliable results from our high quality pH Up and pH Down made with the finest ingredients and proudly manufactured in our California based facility.

Humboldts Secret Sea Kelp Powder Extract | Water Soluble Fertilizer Seaweed | Concentrated Formula w/Nutrients & Minerals 0-0-16 | for Lawn, Garden, Houseplants, Succulents, Hydroponics, Etc | 2lb

Hydroponic Nutrients & Additives
Humboldts Secret Sea Kelp Powder Extract | Water Soluble Fertilizer Seaweed | Concentrated Formula w/Nutrients & Minerals 0-0-16 | for Lawn, Garden, Houseplants, Succulents, Hydroponics, Etc | 2lb Cover
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Natural Benefits: Derived from natural Ascophyllum Nodosum, the Humboldts Secret Kelp Extract serves as a potent root stimulator for plants, boasting an NPK ratio of 0-0-16, making it an ideal choice as a kelp fertilizer for plants, promoting robust root development and overall plant health.
Enhanced Crop Health: Our Concentrated Powder is a versatile solution for indoor and outdoor plants that can act as a houseplant fertilizer and a foliage, vegetable, fruit, and bloom fertilizer.
Boosted Growth and Vitality: Humboldts Secret's Seaweed Extract serves as an effective nutrient source, delivering essential elements to plants grown in hydroponics, succulents, and various other settings, resulting in accelerated growth, increased stress resistance, and improved overall vitality.
Natural Nutrient Source: With its rich concentration of sea weed derived nutrients, our Natural Fertilizer enhances soil fertility and provides plants with a natural source of essential elements, supporting healthy growth and development in a wide range of applications.
Application Directions: For foliar spray, dilute 1/4 to 1/2 teaspoon of Kelp Seaweed Extract per gallon of water and apply every 7-15 days. For hand watering, dilute 1/2 to 1 teaspoon per gallon of water and apply every 2 weeks to promote optimal growth and health.

Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants – (8 oz) w/Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food (8 oz)

Garden Fertilizers
Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants – (8 oz) w/Flower Stacker – Best Flowering Formula for Bigger Harvests - Flowering Plant Food (8 oz) Cover
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THIS BUNDLE INCLUDES: Humboldts Secret Sweet & Sticky (8 Oz) & Humboldts Secret Flower Stacker (8 Oz)
ENERGIZING GROWTH: Unleash the potential of your plants with Sweet & Sticky, a formula rich in carbohydrates and energy, tailored for organic soil and compatible with diverse growing environments. This powerful energy source serves as a versatile solution for all indoor or outdoor plants, thriving in hydroponic, coco, and traditional soil cultivation setups.
FLAVOR, AROMA, AND ESSENTIAL OILS: Sweet & Sticky supports a thriving root zone which in turn will aid in your plants natural ability to enhance natural flavor, aroma, and essential oils in all sorts of indoor and outdoor plants thanks to its abundant source of carbohydrates and saccharide energy. Our powerful formula also aids in the plant's natural ability to increase resin production during the flowering phase.
YIELD ENHANCEMENT: Unleash Flower Stacker, boosting yields up to 30%. Tailored for indoor/outdoor plants in potting soil, it enhances flower density with high phosphorus and potassium. Precision nutrient conditions lead to robust crops and flourishing blooms.
POTENT INGREDIENTS FOR FLOURISHING BLOOMS: With a nutrient-rich formula and added Vitamin B1, Flower Stacker tackles transplant shock. Labels typically claim that B1 supports conditions for better plant establishment and growth in a wide range of plants. Flowering boosters are particularly important in hydroponic and agricultural industries. Thousands of growers use Flower Stacker as an additional flowering agent to maximize their yields by harnessing the power of our clean-running formula.

Humboldts Secret Plant Enzymes – Best Plant and Root Enzymes – 7000 Active Units of Enzyme per ML (2 oz) w/Golden Tree – All-in-One Concentrated Additive – Vegetables, Flowers, & More (2 oz)

Garden Fertilizers
Humboldts Secret Plant Enzymes – Best Plant and Root Enzymes – 7000 Active Units of Enzyme per ML (2 oz) w/Golden Tree – All-in-One Concentrated Additive – Vegetables, Flowers, & More (2 oz) Cover
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THIS BUNDLE INCLUDES: Humboldts Secret Secret Plant Enzymes (2 oz) & Humboldts Secret Golden Tree (2 oz)
ENZYMATIC POWERHOUSE: Humboldts Secret Plant Enzymes is a potent fertilizer, boasting 7,000 units/ml of active enzymes — a market leader in strength. With a low usage rate of just 1ml/gallon, this highly concentrated formula stands as one of the strongest enzymatic solutions available.
VERSATILITY IN GROWING MEDIUMS: Tailored for hydroponics and coco substrates, where microorganisms digesting dead root matter are scarce, Plant Enzymes excels. Its compatibility with all growing mediums makes it a versatile choice for growers seeking enzymatic benefits across diverse cultivation methods.
UNIVERSAL PLANT NUTRITION: Golden Tree is an all-in-one additive suitable for any plant, tree, flower, or bush. It enhances soil and foliar nutrient conditions, promoting better crop yields and supporting overall plant nutrition, establishment, nutrient uptake, and abiotic stress tolerance. The formula comprises a mixture of kelp, carbs, and minerals, allowing it to be seamlessly used in conjunction with other additives and fertilizers or as the only additive for comprehensive plant nourishment.
VERSATILE AND EFFICIENT: Humboldts Secret's Golden Tree is grow-method compatible, designed to thrive in all mediums, including hydroponics, aeroponics, coco, DWC, soil, and more. The small yet potent 2 ounce solution yields up to 55 gallons of an easy-to-use additive, making it a professional-quality fertilizer that transforms home and garden, fostering a green thumb for all.

Humboldts Secret Tree Trunk - Silicate Additive - Indoor Plant Food - Liquid Fertilizer (32 oz) w/Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants – (32 oz)

Garden Fertilizers
Humboldts Secret Tree Trunk - Silicate Additive - Indoor Plant Food - Liquid Fertilizer (32 oz) w/Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Energy for Plants – (32 oz) Cover
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THIS BUNDLE INCLUDES: Humboldts Secret Tree Trunk (32 oz) & Humboldts Secret Sweet & Sticky (32 oz)
ENHANCING PLANT STRENGTH: Discover the potency of Tree Trunk, a premium potassium silicate-based liquid fertilizer enriched with advanced nutrients. This formula capitalizes on the plant's natural ability to fortify cell walls, resulting in thicker stalks and improved branch development. The infusion of hydroponic nutrients makes Tree Trunk an ideal choice for plant nourishment, promoting robust growth.
UNLEASHING PLANT POTENTIAL: Whether you're cultivating plants in soil, hydroponics, or any other medium, this formula stands out as an excellent plant fertilizer. With a recommended usage rate of 2.5-5ml per gallon throughout the entire growth cycle, it provides consistent nourishment, ensuring optimal plant health. Moreover, Tree Trunk plays a crucial role in stress defense, fortifying your plants against abiotic stress and minimizing environmental impacts on crop production.
ENERGIZING GROWTH: Unleash the potential of your plants with Sweet & Sticky, a formula rich in carbohydrates and energy, tailored for organic soil and compatible with diverse growing environments. This powerful energy source serves as a versatile solution for all indoor or outdoor plants, thriving in hydroponic, coco, and traditional soil cultivation setups.
FLAVOR, AROMA, AND ESSENTIAL OILS: Sweet & Sticky supports a thriving root zone which in turn will aid in your plants natural ability to enhance natural flavor, aroma, and essential oils in all sorts of indoor and outdoor plants thanks to its abundant source of carbohydrates and saccharide energy. Our powerful formula also aids in the plant's natural ability to increase resin production during the flowering phase.

Humboldts Secret 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles for Concentrated Lawn Fertilizer | Use for Lawn Care, Car Wash, Garden Sprayer, Lawn Sprayer, etc. | (32oz)

Lawn & Garden Sprayers Pest Control Sprayers
Humboldts Secret 2-Pack 100:1 Garden Hose End Sprayer | Multipurpose Reusable Bottles for Concentrated Lawn Fertilizer | Use for Lawn Care, Car Wash, Garden Sprayer, Lawn Sprayer, etc. | (32oz) Cover
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Versatile Application: Our 32 oz spray bottle, equipped with a hose attachment, is the perfect outdoor hose sprayer for distributing liquid fertilizer for lawns, garden fertilizer, and more around your outdoor areas with ease.
Enhanced Dispersion: Featuring a K1 spray head with a 100:1 ratio, our sprayers ensure wider and more uniform dispersion of your chosen solution for optimal coverage when used as a hose-end sprayer for liquid fertilizer, weed sprayer, or other applications.
Effortless Operation: With a quick and easy setup, simply fill the bottle with your desired product, attach it to the garden hose, and start spraying as a hose fertilizer sprayer. To use, push the tab and slide the switch over to the desired setting.
Adjustable Settings: Our spray bottles offer three adjustment options: off, water only, or water + product, giving you control over the application process as a lawn fertilizer spray.
Maximum Efficiency: Properly calibrated to maximize the application of Humboldts Secret and other concentrated soluble fertilizers, herbicides, and insecticides, our lawn sprayer guarantees effective and efficient results for all your lawn and garden needs.

Humboldts Secret Everything Indoor Plant Food with Kelp | Liquid Concentrate Indoor Plant Fertilizer 3-3-3 All Purpose Plant Food for House Plants (32 Ounce)…

Garden Fertilizers
Humboldts Secret Everything Indoor Plant Food with Kelp | Liquid Concentrate Indoor Plant Fertilizer 3-3-3 All Purpose Plant Food for House Plants (32 Ounce)… Cover
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Instant Liquid Plant Fertilizer - Specifically formulated, high quality water soluble nutrients. Our balanced ratio of Nitrogen, Phosphorus, and Potassium result in lush green, thriving live plants.
Results - Our complete liquid fertilizer for indoor plants promotes natural leaf and root growth, photosynthesis, flowers, enhances abiotic stress tolerance, and improves overall plant nutrition.
Easy House Plant Fertilizer - 100% Vegan formula derived from Monopotassium Phosphate, Potassium Nitrate, and Kelp, our concentrated solution is safe enough to feed weekly. Shake, dilute, and apply.
Plant Food For Every HousePlant - Great on Aloe Vera, Succulent, Bamboo, Snake Plant, Money Tree, Bonsai, Ivy, Spider Plant, Crown of Thorns, Monstera, Pothos, ZZ Plant, Prayer Plant, Orchids.
Plant Fertilizer for All Indoor Potted Plants - Use on Arrowhead, Jade Plant, Banana Tree, African Violet, Rubber Plant, Philodendron, Hoya, Palm Trees, Yucca, Poinsettia, Fiddle Leaf Fig Plant Food.

Humboldts Secret 0-52-34 Monopotassium Phosphate Fertilizer | Bloom Booster MKP Fertilizer, Increase Blooming & Yield | High Purity Water Soluble Fertilizer | 2lb

Garden Fertilizers
Humboldts Secret 0-52-34 Monopotassium Phosphate Fertilizer | Bloom Booster MKP Fertilizer, Increase Blooming & Yield | High Purity Water Soluble Fertilizer | 2lb Cover
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Enhanced Blooming and Flowering: Our monopotassium phosphate bloom booster fertilizer is formulated with high potassium content (34%) to stimulate robust root development, stronger stems, and bountiful flowering, ensuring more vibrant and captivating blossoms.
Enhanced Nutrient Uptake: While being both a high potassium and high phosphorus fertilizer, you not only provide your plants with essential phosphate and potassium, but also improve their uptake of other vital nutrients like nitrogen, magnesium, and calcium, ensuring overall plant health and vigor.
Water-Soluble Efficiency: The phosphorus potassium fertilizer dissolves quickly and completely in water, facilitating precise and efficient nutrient delivery to your plants, whether you're using soil, coco coir, or a hydroponic system, making it ideal for both amateur and professional gardeners.
Robust Root Development: With a high potassium fertilizer content of 52%, our potassium phosphorus fertilizer fuels exceptional root growth, resulting in stronger stems, healthier plants, and more productive blooms, providing the potassium for plants to thrive.
Easy Application and Maximized Production: With its high solubility and easy application methods such as watering cans, drip systems, or foliar spraying, our fertilizer ensures hassle-free use while maximizing flower and fruit harvests. This phosphate potassium fertilizer is a must-have for any gardener seeking to boost productivity and promote vigorous blooms.

Humboldts Secret FAQs

Yes, Humboldts Secret is a legitmate brand on Amazon. After conducting a comprehensive analysis of 17,922 customer reviews for Humboldts Secret products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Humboldts Secret has achieved a respectable rating of 4.5 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from Humboldts Secret on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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Most of the Humboldts Secret products are produced by HS Supplies, LLC. The manufacturer provides Humboldts Secret with a steady supply of products, and they have a good cooperative relationship with each other.

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