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Need to improve your soil’s drainage and density or adjust its acid-alkaline balance? Need to provide your roses, azaleas or tomatoes specific minerals or other nutrients? Whether you’re improving your soil from scratch or adding just the right nutrients to encourage blooming, we have the organic soil amendments your growing requires.
Need advice? Our Soils Blog provides the ideas, information and practical experience you need to get the job done right.
Harvested from a huge deposit of decomposed plant life from millions of years ago.
Derived from Norwegian seaweed and infused with beneficial microbes.
Use for large blooms, strong plants and nutritionally dense greens and vegetables.
This natural re-mineralizer helps grow stronger plants and better tasting crops.
100% Pure. You need only use a small amount around vegetables and flowers.
Lowers pH in alkaline soils and is used around acid loving plants such as azaleas.
Made from hydrolyzed and ground feathers collected from the poultry industry.
An excellent source of slow release phosphorus and calcium, plus trace elements.
This marine-based alternative is wonderful for all flowering plants, trees and shrubs.
Uniquely processed to retain maximum nutrition without using synthetic chemicals.
Perma-Guard is a pure, food grade diatomaceous earth (fresh water type).
Provides organic matter and natural nutrients for flowers and vegetables.
While not a fertilizer, Gypsum can help increase the productivity of your plants.
Safer to use than hydrated types, this pelletized dolomitic limestone is easy to apply.
Derived from poultry waste that's been dehydrated to provide higher NPK.
Adds trace minerals to depleted gardens and improves plant health.
Contains iron, magnesium, silica and as many as 30 other trace minerals.
Supplies potassium (K), an essential nutrient that promotes plant hardiness.
Contains slow-release potash and a large array of trace minerals. Sold in 44 lb bags.
Loosens heavy clay soils while adding calcium and sulfur in a readily available form.
A 100% vegan plant food made from the excrement and exoskeletons of insects.
Rich in NPK and micro-nutrients, yet completely biodegradable — no residues!
An excellent source of micronutrients and beneficial plant growth promoters.
Use for plants that need a nutritional boost without a high NPK load.