Best Nitrogen Garden Fertilizers of 2026

Steven Taylor Avatar
Steven Taylor
Last Updated: Jan 15, 2026

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Nitrogen garden fertilizers are an essential tool for any gardener looking to promote healthy plant growth. These fertilizers contain high levels of nitrogen, a crucial nutrient that plants need to produce chlorophyll and grow strong stems and leaves. Nitrogen garden fertilizers come in a variety of forms, including granular, liquid, and slow-release options, making it easy to find the perfect product for any gardening needs. Whether you're growing vegetables, flowers, or fruit trees, adding nitrogen garden fertilizers to your soil can help you achieve a thriving and bountiful garden.

At a Glance: Our Top Picks

Miracle-Gro Water Soluble All Purpose Plant Food 1.5 lbs Cover #TOP 1
Miracle-Gro Water Soluble All Purpose Plant Food 1.5 lbs
ftb score rating icon 9.9
Fiddle Leaf Fig Plant Food Cover #TOP 2
Fiddle Leaf Fig Plant Food
ftb score rating icon 9.8
The Old Farmer's Almanac Plant Food Mini Spikes 5-5-5 Cover #TOP 3
The Old Farmer's Almanac Plant Food Mini Spikes 5-5-5
ftb score rating icon 9.6

Top 7 Nitrogen Garden Fertilizers

Miracle-Gro Water Soluble All Purpose Plant Food 1.5 lbs

Miracle-Gro - 2001123 #2
1.5 lb.
Miracle-Gro Water Soluble All Purpose Plant Food 1.5 lbs Cover
Miracle-Gro Water Soluble All Purpose Plant Food, For All Indoor or Outdoor Plants, Roses, Flowers, Vegetables, Houseplants, Trees, and Shrubs, 1.5 lbs

The Miracle-Gro All Purpose Fertilizer is designed to nourish a wide variety of plants, whether indoors or outdoors. It supports the growth of everything from roses and flowers to vegetables and trees, making it a versatile choice for any gardener. The formula is packed with essential nutrients like nitrogen, phosphorus, and potassium, which are crucial for healthy plant development. When you use this fertilizer, you'll notice your plants growing bigger and more vibrant quickly. Application is simple too—just mix the recommended amount with water, making it easy to feed your plants regularly and keep them thriving.

What We Like
Fast visible plant growth
Easy to mix and use
Versatile for many plant types
No noticeable odor
Good value for price
#TOP 2

Fiddle Leaf Fig Plant Food

Fiddle Leaf Fig Plant Food
FiddleLeafFigPlantFood
8 unces
Fiddle Leaf Fig Plant Food Cover
Fiddle Leaf Fig Plant Food – 3‑1‑2 Balanced NPK Liquid Fertilizer for Larger Leaves, Stronger Roots & Steady, Vibrant Growth | Suitable for All Ficus Including Ficus Lyrata | Made in USA | 8 oz

The Fiddle Leaf Fig Plant Food is an all-organic fertilizer that provides optimal nutrition for fiddle leaf fig plants. It contains no urea or harmful chemicals, making it safe to use every time you water your plant. The product comes with a free care webinar and e-book to help you grow the perfect fiddle leaf fig in your home. Diluting 1 teaspoon in 2 cups of water makes it easy to use with no mixing or mess. Each 8 oz bottle is enough for 6 months to a year, depending on your plant size.

What We Like
Contains no urea or harmful chemicals
Comes with a free care webinar and e-book
Easy to use with no mixing or mess
#TOP 3

The Old Farmer's Almanac Plant Food Mini Spikes 5-5-5

12PK-OFA-MS-HF555
12 Mini Spikes
The Old Farmer's Almanac Plant Food Mini Spikes 5-5-5 Cover
The Old Farmer's Almanac Houseplant & Flower Plant Food Mini Spikes - NPK 5-5-5 for Continuous Feeding and Vibrant Colors (12 Mini Spikes)

The Old Farmer's Almanac Mini Spikes offer a quick and lasting way to nourish your houseplants, flowers, and container plants. These mini spikes deliver balanced nutrients that support healthy growth, vibrant colors, and strong roots, making your plants look their best. You only need to apply them every 6 to 8 weeks, which saves time and effort compared to frequent feeding. Their patented design makes them easy to insert into the soil without mess or breakage, so you can fertilize your plants hassle-free and enjoy more blooms and lush foliage.

What We Like
Long-lasting nutrition
Balanced 5-5-5 formula
Easy, mess-free application
Supports vibrant blooms

Sun Bulb Company 8305 Better Gro Orchid Plus Bloom Booster Fertilizer

8305
multi
1 Set
Sun Bulb Company 8305 Better Gro Orchid Plus Bloom Booster Fertilizer Cover
Sun Bulb Company 8305 Better GRO Orchid Plus Bloom Booster Fertilizer, 16-Ounce

The Sun Bulb Company 8305 Better Gro Orchid Plus Bloom Booster Fertilizer is a high-quality fertilizer specifically designed for orchids. This bloom booster fertilizer from Sun Bulb is perfect for enhancing the growth and blooming of your orchids. With its unique formula, it provides essential nutrients to your orchids, promoting healthy root development and vibrant blooms. The Sun Bulb Orchid Bloom Booster is easy to use and ensures that your orchids receive the right amount of nutrients they need. Its convenient packaging makes it easy to measure and apply, allowing you to take care of your orchids with ease. Give your orchids the boost they need with the Sun Bulb Orchid Bloom Booster!

What We Like
Enhances growth and blooming
Promotes healthy root development
Easy to measure and apply
#TOP 5

General Hydroponics Flora Series Nutrient System

HGCVB00062
White
1 quart
General Hydroponics Flora Series Nutrient System Cover
General Hydroponics Flora Series: FloraMicro, FloraBloom, FloraGro - 3-Part Hydroponic Nutrient System, 1 qt. Bottles

The General Hydroponics Flora Series is a 3-part hydroponic nutrient system that contains FloraMicro, FloraBloom, and FloraGro to provide your plants with a comprehensive diet at every growth stage. FloraMicro contains nitrogen, calcium, and trace minerals, while FloraBloom adds phosphorus, potassium, magnesium, and sulfur to improve flower and fruit development. FloraGro provides additional nitrogen and potassium for foliar growth and plant structure.

What We Like
Provides a comprehensive nutrient diet for plants at every growth stage
Contains essential nutrients such as nitrogen, calcium, phosphorus, potassium, magnesium, and sulfur
Improves flower and fruit development
#TOP 6

Growth Technology GT Foliage Focus Liquid Plant Food

250mls
Foliage
250 ml
Growth Technology GT Foliage Focus Liquid Plant Food Cover
Growth Technology GT Foliage Focus - Liquid Indoor Plant Food for Houseplants, Tropical Plants, Aroids, Ferns and Palms - Concentrated Formula for Vibrant Leaves and Dense Foliage - 8.5 fl oz (250 mL)

The Growth Technology Foliage Focus is a liquid nutrient designed especially for indoor and tropical plants like monsteras, ferns, and palms. It supports your plants by promoting strong roots and healthy leaves, helping them grow lush and vibrant. The formula includes important minerals such as nitrogen, potassium, calcium, and magnesium, which help keep your plants' leaves green and healthy. You can use it in different growing setups like soil, hydroponics, or even as a foliar spray, making it very flexible for your plant care routine. Plus, it’s easy to use with simple dosing instructions, so you can feed your plants regularly without hassle.

What We Like
Supports strong roots and leaves
Contains balanced essential minerals
Works in soil and hydroponics
Suitable for foliar spraying
Simple and easy dosing

MARPHYL Organic Liquid Fertilizer for Plants

500ml
Natural
16.9 oz
MARPHYL Organic Liquid Fertilizer for Plants Cover
MARPHYL Organic Liquid Fertilizer - Outdoor & Indoor Plant Food - All-Purpose, Nutrient-Rich Lawn Fertilizer & Soil Enhancer for House Plants, Flowers, Vegetables, Succulents, Bamboo, Hydroponics

MARPHYL Organic Liquid Fertilizer is a natural, vegan, non-toxic, non-GMO, and sustainable fertilizer that enhances soil quality and provides all the necessary nutrients for the healthy growth of plants. The fertilizer is ideal for use in outdoor and indoor gardening, vegetable gardening, hydroponics, grasses, trees, flowers, and more. The marine phytoplankton used in this fertilizer is rich in potassium, nitrogen, phosphorus, calcium, magnesium, vitamins, minerals, essential fatty acids, amino acids, chlorophyll, and a vast spectrum of phytochemicals, making it a superior plant food that boosts lush foliage and colorful blooms. It's easy to use, just mix it with water and pour it onto the plants.

What We Like
Enhances soil quality and boosts healthy growth of plants
Organic, vegan, non-toxic, non-GMO, and sustainable fertilizer
Rich in nutrients, vitamins, and minerals that make plants thrive
Easy to use water-soluble fertilizer
Ideal for use in outdoor and indoor gardening, vegetable gardening, hydroponics, grasses, trees, flowers, and more
Buying Guide Image

The Best Nitrogen Garden Fertilizers for Every Budget

Introduction

If you're an avid gardener, you know that proper fertilization is essential for the growth and health of your plants. Nitrogen is one of the most important elements for plant growth, and using a nitrogen-based fertilizer can give your garden a much-needed boost. But with so many options on the market, it can be overwhelming to choose the right fertilizer for your garden. In this article, we'll go over some key factors to consider when selecting a nitrogen-based fertilizer for your garden.

Types of Nitrogen Fertilizers

One of the first things to consider when choosing a nitrogen fertilizer is the type of product you want to use. There are several different types of nitrogen fertilizers available, each with its own pros and cons. Some common types of nitrogen fertilizers include:

  • Synthetic fertilizers: These are chemical fertilizers made from synthetic ingredients. They are typically easy to apply and can provide plants with a quick burst of nitrogen, but they can also be harmful to the environment if not used properly.

  • Organic fertilizers: These are fertilizers made from natural materials, such as compost or manure. They are typically more environmentally friendly than synthetic fertilizers, but they may not provide plants with as much nitrogen as synthetic options.

  • Slow-release fertilizers: These are fertilizers that release nitrogen slowly over time, providing plants with a steady supply of the element. They are less likely to burn plants than synthetic fertilizers, but they may not provide as much immediate nitrogen.

Consider Your Plants' Needs

Another important factor to consider when choosing a nitrogen fertilizer is the specific needs of your plants. Different plants have different nitrogen requirements, so it's important to choose a fertilizer that provides the right amount of nitrogen for your specific plants. For example, fast-growing plants like tomatoes and peppers may benefit from a fertilizer with a higher nitrogen content, while slower-growing plants like roses and peonies may do better with a fertilizer that provides a lower amount of nitrogen.

It's also important to consider the stage of growth that your plants are in. During the vegetative stage, when plants are actively growing and producing leaves, they may need more nitrogen than during the flowering stage, when they are focusing on producing flowers and fruit.

Choose the Right Form

Another factor to consider when choosing a nitrogen fertilizer is the form of the product. Nitrogen fertilizers are available in several different forms, including liquids, granules, and slow-release pellets. Each form has its own advantages and disadvantages, so it's important to choose the right one for your garden.

Liquid fertilizers are easy to apply and can provide plants with a quick boost of nitrogen. However, they can be difficult to measure and may wash away quickly if it rains. Granular fertilizers are easy to measure and apply, but they can be difficult to distribute evenly in the garden. Slow-release pellets are more precise and provide a steady supply of nitrogen, but they can be more expensive than other forms of fertilizer.

Conclusion

Choosing the right nitrogen fertilizer for your garden can be a daunting task, but by considering the type of fertilizer, the needs of your plants, and the form of the product, you can find a fertilizer that will help your garden thrive. With the right nitrogen fertilizer, your plants will be well-fed and healthy, leading to a beautiful and bountiful garden.

Frequently Asked Questions (FAQs)

1. What is the best source of nitrogen for the garden?

The best sources of nitrogen for the garden are manures, ground-up animal parts (like blood meal, feather dust, and leather dust), and seed meals (such as soybean meal and cottonseed meal). These organic materials are rich in nitrogen and can provide the necessary nutrients for plant growth.

2. What can I add to my garden for nitrogen?

There are several options to add nitrogen to your garden, including manure, biosolids, compost tea, animal products, nitrogen-fixing plants, and commercial fertilizer. These sources can help enrich the soil with nitrogen, promoting healthy plant growth and development.

3. What plant fertilizer is high in nitrogen?

If you want to increase the nitrogen content of your soil, there are nitrogen-rich fertilizers available. Some examples include Ammonium Sulfate 21-0-0, Crustacean Meal 4-0-0, and Feather Meal 12-0-0. These fertilizers can provide a high concentration of nitrogen to support plant growth.

4. Is nitrogen fertilizer good for the garden?

Yes, nitrogen fertilizer is beneficial for the garden. Nitrogen is an essential nutrient for plants and plays a vital role in their growth. It is involved in the production of chlorophyll and photosynthesis, which are crucial for plant health. Lack of nitrogen can result in yellowing (chlorosis) of plants.

5. Are coffee grounds high in nitrogen?

Yes, coffee grounds are high in nitrogen content and can be beneficial for plants. When added to compost, they contribute organic matter that improves soil water retention. However, it's important to note that coffee grounds tend to be acidic, so they should be used in moderation and balanced with other amendments.

6. What is the fastest way to add nitrogen to soil?

There are several fast ways to add nitrogen to soil, including using blood meal or alfalfa meal, diluted human urine, manure tea, compost, chop-and-drop mulch, planting nitrogen-fixing plants, reducing tilling, and practicing polyculture. These methods can quickly increase the nitrogen levels in the soil, promoting plant growth.

7. Does Seasol have nitrogen?

Seasol is a fertilizer that contains a special blend of nitrogen (N), phosphorus (P), potassium (K), and trace elements. It helps promote vigorous growth, abundance of flowers, and healthy plant growth. The addition of seaweed in Seasol also stimulates strong root systems in plants.

8. Is Epsom salt a nitrogen fertilizer?

No, Epsom salt does not contain nitrogen, phosphorus, or potassium. It has an analysis of 0-0-0, meaning it lacks major nutrients required for plant growth. Spraying Epsom salt on plant foliage can even cause leaf scorch, so it is not recommended as a nitrogen fertilizer.

Editor's Notes

During our nitrogen garden fertilizer research, we found 24 nitrogen garden fertilizer products and shortlisted 7 quality products. We collected and analyzed 549,090 customer reviews through our big data system to write the nitrogen garden fertilizers list. We found that most customers choose nitrogen garden fertilizers with an average price of $14.84.

The nitrogen garden fertilizers are available for purchase. We have researched hundreds of brands and picked the top brands of nitrogen garden fertilizers, including Miracle-Gro, Fiddle Leaf Fig Plant Food, The Old Farmer's Almanac, Better-Gro, General Hydroponics. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Steven Taylor Avatar

Steven Taylor grew up in a small town called Beaufort in South Carolina and his passion for building and woodworking has led him to master the latest garden gadgets. He always holds every chance to patch up or sand down his beloved garden. There are various novel technologies in his articles.