Building a thriving cannabis garden starts with feeding your plants the right way, and the Full Strength Grow Kit, brought to you by the experts at Homegrown Cannabis Co., makes that easier than ever. We've taken the guesswork out of nutrition by pairing three professional-grade products that work together from the moment you transplant all the way through peak flower.
There are no compatibility headaches and no complicated math to figure out. The Full Strength Grow Kit gives your plants a dependable nutritional base that supports vigorous root development, steady vegetative growth, and the kind of dense, resinous buds every home grower dreams about.
Think of this Full Strength Grow Kit as a complete feeding system for the home cultivator. It brings together an organic biological inoculant, a controlled-release NPK fertilizer, and a liquid Cal-Mag supplement into one matched, stage-by-stage routine that adapts to wherever your plants are in their journey.
What's Inside the Full Strength Grow Kit
This all-in-one bundle covers your plants from transplant right through to harvest, in soil, coco or soilless media, at every experience level. Everything you need to feed with confidence is included in a single, thoughtfully assembled package.
- Underground Mix: Mycorrhizae Powder (14oz / 396g), a 100% organic inoculant that establishes a living root network.
- Evergreen Charge: NPK Controlled-Release Fertilizer (16oz / 453g) for steady, plant-synced macro-nutrition.
- Fortify Pro: Cal-Mag Supplement (8oz / 250ml) that prevents and corrects calcium and magnesium shortfalls fast.
Why Growers Reach for This Kit
- Full-cycle nutrition: From root establishment to flowering, every growth stage is supported by matched, complementary products.
- Organic foundation: Underground Mix builds a symbiotic root network that benefits your plant throughout its entire life.
- Set-and-forget ease: Evergreen Charge feeds steadily for weeks, lowering the risk of over or under-feeding.
- Faster correction: Fortify Pro is immediately available for uptake, quickly addressing calcium and magnesium deficiencies.
- Built for soil, coco and soilless: Containers or outdoor gardens, indoors or out, this kit suits any solid grow medium. Evergreen Charge is not intended for water-based hydroponic systems.
- Beginner-to-pro friendly: Clear dosing and simple application methods keep things approachable at any skill level.
How the Full Strength Grow Kit Works at Every Stage
Each product in this system has its own role to play, and lining them up in the right order is what brings the whole thing together. Here is a simple, stage-by-stage breakdown so you know exactly what to reach for from transplant day to harvest.
Underground Mix (Mycorrhizae Powder):
- When: A single application at transplant time is all it takes.
- How: Work it straight into the backfill soil surrounding the root ball, going with 1 tsp (5g) in smaller pots or 1 tbsp (15g) per gallon of media in bigger containers.
- Why: Seeds the root zone with helpful fungi that team up with your plant, boosting how well it pulls in water and nutrients while taking the edge off transplant stress.
Evergreen Charge (NPK Controlled-Release Fertilizer):
- When: Across the vegetative and flowering stages, following whatever feeding rhythm suits your grow.
- How: Blend 1 tsp (5g) per gallon of media as an amendment, scatter it as a top-dress around established plants, or stir ½ tsp (2.5g) into a gallon of water for a weekly drench.
- Why: Its coated prills meter out balanced nutrition little by little as soil warmth and moisture shift, keeping your plants fed steadily for anywhere from 4 to 8 weeks per round.
Fortify Pro (Cal-Mag Supplement):
- When: Whenever your plants call for it, typically every 1 to 2 weeks, with extra attention during fast vegetative growth and through bloom.
- How: Stir 3 to 5 ml per gallon into your nutrient mix for a root feed, or dilute 5 ml per gallon and mist it on as a foliar spray when the lights are low.
- Why: Keeps calcium and magnesium levels topped up, firms up cell structure, and fuels the terpenes and cannabinoids behind fuller, harder-hitting buds.
Recommended Feeding Timeline
- At transplanting: Lead with Underground Mix on its own.
- Vegetative stage: Bring in Evergreen Charge (as an amendment or drench) and lean on Fortify Pro whenever your plants ask for it.
- Flower week 1 onward: Keep Evergreen Charge going (drench or top dress) and step up how often you reach for Fortify Pro.
- Flower week 3 onward: Pair Evergreen Charge with Fortify Pro at every feeding to push bud density and potency as far as they will go.
Can all three products be used at the same time?
Yes, that is exactly what this system is built for. Each product targets a different part of plant nutrition, so they complement rather than compete. Underground Mix lays the biological groundwork at transplant, Evergreen Charge handles ongoing macro-nutrition, and Fortify Pro fills secondary nutrient gaps as they arise.
Is this kit a good fit for first-time growers?
Absolutely. The controlled-release technology in Evergreen Charge makes overfeeding far less likely, and the clear dosing guidance across all three products removes the guesswork that often trips up newer growers. Underground Mix needs just a single application, which keeps things especially simple.
Will these products perform in a hydro setup?
Fortify Pro is fully compatible with hydroponic systems. Evergreen Charge is not designed for true water-based setups, since its controlled-release action needs a solid medium to work against, and Underground Mix relies on root contact in a solid medium to colonize properly. Use this kit in soil, coco, or similar media.
How many grows will the kit cover?
The 14oz Underground Mix bag covers multiple transplants across many plants. The 16oz Evergreen Charge bag provides several months of base feeding at standard rates. The 8oz Fortify Pro bottle covers a full flowering cycle for several plants at recommended doses.
Does this kit play nicely with other nutrients?
Yes. Evergreen Charge makes an excellent foundational base that you can supplement with targeted liquid additives. Fortify Pro is designed to work with most base nutrient schedules, so you can simply add it to your existing mixed solution.