Best Garden Fertilizers Powder of 2025

Bonide Bontone II Rooting Powder promotes quick root development from cuttings, seeds or bulbs. Its plant growth hormone stimulates root production in a wide range of plants, including ornamentals, vegetables, fruit trees, and berries. It is designed for use on azaleas, mums, geraniums, pachysandra, poinsettias, and more. Ideal for transplants, this product facilitates the production of healthy roots.

This Organic Gypsum is a natural mineral fertilizer that helps with plant growth and fertilizer performance. It supplies calcium and sulfur, and loosens compacted soil for faster water penetration. It is pH neutral and effective in curing Blossom End Rot in tomatoes, repairing soil from pet damage and road salt. The resealable, easy pour packaging makes it convenient to use and store. Made in the USA with the highest quality ingredients, this Gypsum is perfect for organic gardening needs.

Duda Energy Yellow Sulfur is a highly pure elemental sulfur powder, boasting over 99.5% purity. This commercial-grade fertilizer is finely ground, with a significant portion passing through a #200 mesh, making it ideal for effective soil application. You can easily use it to enhance your garden's nutrient content, promoting healthier plant growth. Packaged in a heavy-duty, resealable bag, it ensures convenience and freshness for all your gardening needs, while its chemical formula (S8) guarantees you are using a reliable product for your plants. Remember, this fertilizer is not for human consumption.

Cz Garden Lime is an all-natural mineral fertilizer made in the USA. It is listed by the Organic Materials Review Institute (OMRI) for use in organic production. This product supplies essential nutrients, calcium and magnesium, to your plants, improving their growth and maximizing fertilizer performance. It also sweetens your soil, raising and stabilizing the pH, making it perfect for Earthbox and other container gardens. Additionally, the natural limestone is ground into an ultra-fine powder for rapid reaction time, preventing and curing Blossom End Rot in tomatoes and peppers. Cz Garden Lime comes in a resealable, easy pour packaging for convenience and long-term storage. With this premium grade soil amendment, you can germinate, propagate, and cultivate your organic garden with confidence.

Greenway Organic Sulfur Fertilizer is essential for plant health, offering a potent blend of 99% elemental sulfur. This product is crucial for breaking down in soil, helping to form plant proteins, which are vital for growth. Additionally, it effectively lowers pH levels, making it ideal for acid-loving plants, ensuring they thrive. You can use it across a variety of fruits and vegetables, enhancing nutrient absorption in sulfur-deficient soils. This powerful fertilizer not only boosts growth but also promotes vibrant colors in your plants, making your garden more beautiful.

Introducing the USA Eggshell Fertilizer Powder, a natural and safe fertilizer for all your garden plants. This high-quality fertilizer is made from pasteurized eggshell powder, providing your plants with the essential calcium they need. Whether you have orchids, African violets, spider plants, ivy, hoya, kalanchoe, or tomatoes, this fertilizer is perfect for them all. Not only does it help prevent blossom end rot, but it also promotes healthy growth and vibrant blooms. With its non-toxic and safe formula, you can rest assured that you are providing the best care for your plants. Try the USA Eggshell Fertilizer Powder today and watch your plants thrive!

IMUSTGARD Organic Sulfur Powder is a natural and organic garden fertilizer that has been trusted for centuries. It is safe for all plants, including flowers, vegetables, fruit trees, and houseplants. This product is also environmentally friendly, ensuring the well-being of wildlife like pets, birds, and pollinators. With its ultra-fine powder for uniform coverage, it easily lowers soil pH and enhances soil efficiency. Simply mix it into the soil for optimal results.

Garden Safe Rooting Hormone promotes root growth, ideal for starting new plants from cuttings. It works with a variety of plants commonly found in homes, gardens, and greenhouses. This rooting hormone is perfect for encouraging the growth of African violets, roses, poinsettias, and more from cuttings. Simply moisten the plant cutting, dip it in the powder, remove excess hormone, and plant it to see new growth. The active ingredient, Indole-3-butyric acid, mimics the natural root hormone found in plants, aiding in successful propagation.

Southside Plants Gypsum is a natural mineral calcium sulfate dihydrate powder used as a garden soil amendment fertilizer for lawns and plants. It is an all-natural mineral fertilizer that supplies essential nutrients calcium and sulfur to improve plant growth, maximize fertilizer performance and improve soil physical condition. It also benefits soil garden, promotes plant health, and is versatile for both indoor and outdoor gardening.

Smart Grower Mycorrhizae is a powerful root enhancer designed to promote healthy plant growth. Unlike other products, this blend contains live spores, ensuring maximum effectiveness for your plants. You can easily apply it directly to the roots or mix it with water for quick results. This unique five-strain formula is specifically crafted to outperform simpler options, giving you a superior solution for boosting your garden. Plus, it works well with most fertilizers, making it a versatile choice for any gardener looking to achieve vibrant, thriving plants.