Compost Boost™ is perfect for faster composting in Garden Towers with OR without worms and has been tested to approximately double decomposition rates. Compost Boost™ is a powerful compost-accelerating solution that boosts the productivity of any cool-process or vermicomposting system through enhanced microbial and enzymatic activity. It is ideal for boosting most backyard compost bins, vermicompost containers, trays, and in-ground composting systems. Safe for people, pets, pollinators and worms! New for 2025!
No additional shipping cost if purchased with a Garden Tower 2.
At the heart of every Garden Tower® System is integrated vermicomposting—a game-changing approach that enhances gardening and sustainability. But we wanted to take it a step further by making composting faster and more efficient, allowing you to break down larger quantities of scraps without the wait, or the need for worms.
That’s where Compost Boost™ comes in. This proprietary blend of beneficial microbes, enzymes, and nutrients accelerates decomposition, allowing kitchen scraps and brown matter to break down rapidly—even without worms!
Proven ResultsIn controlled tests, identical amounts of kitchen scraps were placed into two Garden Towers—one using only newly added worms and the other using only Compost Boost™. After just 20 days, the compost level dropped an average of 10 inches more in the Compost Boost™ powered Tower, proving its outstanding breakdown efficiency (nearly a 100% rate increase versus the control Tower).
Compost Boost™ isn’t just a compost accelerator—it’s a powerful bioactivator packed with over 50 micro and macronutrients that enrich your soil and strengthen plant roots. When you collect compost tea from your Garden Tower and re-water your plants, you’re giving them an added nutrient boost for even healthier growth.
For extra benefit, dilute Compost Boost™ with water and use it to nourish your Garden Tower or other plants, helping unlock nutrients in the soil and maximize plant health.
Why Choose Compost Boost™?✅ Made in the USA from organic and sustainable ingredients
✅ Naturally accelerates composting with live cultures and enzymes
✅ Perfect for organic gardening—all-natural and sustainably made
✅ Safe for people, pets, pollinators, and worms
✅ Cruelty-free—no harmful additives
✅ Enhances nutrient uptake for healthier, more vibrant plants
Take your composting—and your garden—to the next level with Compost Boost™!
For maximum Garden Tower performance throughout the growing seasons:
Use Compost Boost™ in your GT2 Compost Tube to maximize compost production
Apply diluted Compost Boost™ in the soil to enhance root growth and nutrient uptake
Spray Compost Boost™ on plant leaves for gentle 50+ micronutrient foliar feeding
Diluted Compost Boost™ spray has additional benefits:
Provides beneficial microbes
Supports protozoa growth, which consumes pathogens and fungi
Increases disease resistance in plants

Composting Without Worms: Compost Boost™ is a composting-worm alternative that allows for effective cool-process composting in all Garden Tower® systems even in the absence of worms! We strongly recommend red wiggler composting worms for a low-maintenance, highly effective worm-powered Garden Tower. However, some of our users prefer to manage their Towers without worms which motivated us to work with a phenomenal partner to develop this Compost Boost™ concentrated living, worm-powered solution. One 32 oz bottle powers wormless Garden Tower composting for about 6 months.
Composting With Worms: Compost Boost™ is alive and derived from natural composting worm castings and other safe and sustainably sourced ingredients. It is friendly to use with your existing worms in the Garden Tower Composting Column or in the surrounding potting soil.
Compost Boost™ can increase the performance of all common composting methods below 90°F. Compost Boost™ is only functional for "true hot" or thermophilic composting during the early stages by increasing the rate of breakdown and driving more nutrient availability for rapid decomposition toward a transition to hotter microbial action.
Compost Boost™ is loaded with live cultures and nutrient-boosting enzymes created by real worms! Adding diluted Compost Boost™ to your plant's soil provides living fungal and bacterial symbionts essential to unlocking plant nutrients and growing stronger, larger, more efficient root systems. The results are more robust, resilient plants and proven larger yields!
A well-known secret in vegetable growing competitions is the use of living worm-casting solutions in the soil root zone and applied to plant foliage! Furthermore, Compost Boost™ provides over 50 micronutrients to micro-supplement your NPK organic plant food or fertilizer (we sell and recommend ORGANIC Dr. Earth for fortifying your potting mix required slow-release NPK).
Soil Application (watering or drenching)
Foliar Application (spray bottle)
We will continue to build this FAQ based on YOUR QUESTIONS, so let us know at support@gardentowerproject.com what you need answers to!
Does this product have an odor? Yes, it can, but not always! As we get into the warmer months, transportation temps will be higher and the live microbes in Compost Boost™ may produce some sulfur gas! Vent the cap outside and move the bottle to cooler storage.
How should this be stored? Store between 40f and 70f away from direct sunlight. Product effectiveness deteriorates after 12 months as live culture colony counts decrease.
How do I dechlorinate my water? For best results, try to reduce the amount of Chlorine in your tap water to protect the live cultures in Compost Boost™. This can be done instantly with a KDF filter or even a basic charcoal filter on your tap or hose, but as an easy alternative you can set tap water out for 24 hours in a bucket or watering can. This will dissipate the free chlorine that will attack the microbes; however, chloramines will still be present (but that won't have a major impact). You can deactivate both chlorine and chloramines in a bucket of water in 1 hour by placing a handful of soil in the bucket and giving it a good swirl!