Ecothrive Charge — Organic Soil Amendment for Plant Health & Natural Immunity
Best for: Growers wanting to boost soil biology, plant vigour, and natural disease resistance without synthetic fertilisers
Our thoughts
This is the soil amendment that gets proper results. Ecothrive Charge doesn't just feed your plants—it rebuilds your soil from the ground up and triggers the plant's own defence systems. One we recommend across the board, from first-time growers to seasoned pros. Soil Association certified, UK-made, and it actually works.
Ecothrive Charge is an organic soil amendment and microbial inoculant made from mealworm frass (insect excrement and body matter) that delivers dual benefits: slow-release nutrition and biological soil regeneration. Packed with 450 million beneficial bacteria per gram and natural chitin, Charge feeds your soil life while triggering your plant's own immune response—all from a single, easy-to-use organic product. Soil Association certified and made in the UK, it works with soil, coco, and soilless mixes without complication.
How it compares
Ecothrive Charge sits in the premium organic amendment category, competing against worm castings, guano products, and liquid microbial inoculants.
-
vs. worm castings: More cost-effective for volume growing; chitin provides plant immunity benefit that castings don't offer
-
vs. guano products: Lower environmental impact (insect farming byproduct, not harvested); balanced NPK (3.5/2.5/2) for all-purpose use
-
vs. liquid inoculants: Dry, shelf-stable format; easier to measure and apply; longer storage life; no mixing required
-
vs. synthetic fertilisers: Slow-release over 3-4 weeks; builds soil biology instead of depleting it; certified organic
The key differentiator is chitin—it feeds beneficial fungi, triggers plant immunity, and turns your soil into a living system instead of an inert medium.
Usage guidance
Charge is flexible. Use it as a base mix, top dressing, or foliar spray depending on your setup.
Mixing into potting media (base dressing)
Blend Charge into your soil or coco before planting. Use 1-2g per litre for cuttings and seedlings, or 3-4g per litre for established plants in soil. For coco, increase to 4-6g per litre. Stir thoroughly to distribute evenly.
Top dressing (ongoing feeds)
Apply 2-3g per litre of pot volume every 4 weeks to boost microbial activity mid-cycle. Lightly work into the top layer and water in. Simple, no guesswork.
Foliar spray (growth boost)
Mix 1-2g per litre of water and spray foliage every 10-14 days for rapid nutrient uptake and immune stimulation. Works as a compost tea for watering in as well.
Growing media compatibility
Works across all systems—soil, coco, hydroponic substrates, and soilless mixes. No special preparation needed.
Technical specifications
-
Format: Compressed chunks (50% more concentrated than loose frass; reduced dust)
-
Available sizes: 500g, 1.75kg, 3.5kg
-
Source: Tenebrio molitor (yellow mealworm) frass, fed organic carrots and wheat bran
-
NPK ratio: 3.5/2.5/2 (balanced, all-purpose nutrient profile)
-
Microbial content: 450 million beneficial bacteria per gram
-
Key active component: Chitin (from mealworm exoskeleton and body matter; feeds beneficial fungi and triggers plant immunity)
-
Nutrient release: Slow-release over 3-4 weeks
-
Certification: Soil Association approved for organic agriculture
-
Compatibility: Suitable for soil, coco, and soilless growing systems
Who this is for
- First-time growers wanting straightforward, organic feeding without chemical guesswork
- Experienced growers looking to rebuild soil biology and reduce synthetic inputs
- Anyone running multiple pots or rooms where microbial activity directly impacts yield
- Growers concerned with plant health and natural disease resistance
- Coco growers wanting to build a living, biologically-active medium
- Sustainability-focused growers preferring UK-made, circular-economy products
Particularly suited to setups where soil biology matters as much as raw nutrition—which is most of them, once you understand how plants actually work.
Our take
Ecothrive Charge is one of those rare products that does exactly what it claims. It feeds your plants through proper nutrition, rebuilds your soil through microbial activity, and triggers the plant's own immune system through chitin. That's three jobs in one product, applied by just mixing it in or sprinkling it on top.
Soil Association certified, made in the UK, and backed by grower feedback that speaks for itself—gardens and competition winners have been built on this stuff. If you're building a proper growing system instead of just feeding plants chemicals, this is worth picking up. Does exactly what it should, day in, day out.
