A logo for root cause natural fertilizer with a tree and roots.

Organic Plant Fertilizers

Safe, Effective, & Affordable
Welcome to Root Cause!

The Natural Choice with Real Results

We’re your one-stop shop for organic plant fertilizers designed to nourish your plants and enrich your soil without harmful chemicals. Whether you’re a seasoned gardener or just starting, we have everything you need to support thriving plants the natural way! 

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A bunch of potted plants are sitting on a table.

Organic Houseplant Fertilizers & More

We either organically produce our ingredients or purchase them from vetted, responsible sources. We carefully choose every ingredient and to they meet high environmental and quality standards, ensuring you receive a product that’s equal parts eco-friendly and functional.

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Fertilizer That WORKS

Who says you can’t have an organic fertilizer that’s both powerful and free of harsh chemicals and manure? Our line of organic plant food proves that effectiveness and natural ingredients can coexist. Get the job done right with peace of mind, knowing our products are safe and environmentally sound.

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A bag of root cause organic houseplant blend

Versatility

Our products are incredibly versatile, making them the perfect solution for a wide range of applications. Whether you’re cultivating a thriving garden, nurturing vibrant flowers, or keeping your houseplants lush and healthy, our fertilizers adapt to meet the needs of each environment.

A person is holding a shovel over a bowl of soil.

High Quality From Start to Finish

We only source from the best of the best, giving our customers a high-quality fertilizer that helps plants reach their maximum potential. Ingredients are selected for their purity, effectiveness, and sustainability, creating a product with a caliber that’s unmatched in the industry. 

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Sustainability Matters

In addition to caring about our customers, we care a great deal about the environment and the soil itself. A true friend of the earth, we’re dedicated to offering sustainable, eco-friendly solutions that nurture plants while protecting our planet.

using

100%  Mylar Compostable Bags

Further demonstrating our commitment to sustainability.

Frequently Asked Questions

Our goal is complete transparency, providing you with clear, thorough information so you can make confident choices that align with your needs. We’ve put together answers to some of the most commonly asked questions, giving you a convenient way to find the information you’re looking for. 

If there’s anything more you’d like to know, our team is always here to provide further assistance—just reach out!

  • How Much Fertilizer Do I Need?

    You’ll start with a 1/4 cup for a 6" planting pot. This carefully measured amount delivers the ideal nutrient balance for smaller pots and supports healthy root development, growth, and resistance against disease.

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  • What are the Advantages of Organic Fertilizer?

    Our all-natural fertilizer is completely free from harmful chemicals, ensuring it nourishes rather than harms your soil. Unlike synthetic alternatives, it preserves and enriches the soil's natural ecosystem, promoting healthy microbial activity and long-term soil fertility.

  • Are Organic Fertilizers Safe?

    Yes! Safe for little ones and furry friends alike, our organic fertilizers provide a gentle, natural way to nourish your plants without exposing your family or pets to harsh chemicals.

More FAQs

Improve Your Plant Health Today!

At Root Cause, our commitment to excellence drives everything we do. Each bag of our organic plant fertilizer is meticulously crafted and packed with nutrient-rich, environmentally friendly components that not only nurture your plants but also help safeguard the planet.  We believe in providing a product that you can trust—one that supports healthy, vibrant growth while enriching the soil and maintaining ecological balance.

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