GP3 Starter Kit by Green Planet — Complete 12-Bottle Feed Program
GP3SK
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Pairs well with
The GP3 Starter Kit is Green Planet's flagship bundle — the complete GP3 program in one box. Twelve bottles cover the lot: the 3-part base (Grow, Bloom, Micro), plus Ocean Magic, Root Builder, Vitathrive, Plant Guard, Rezin, two bottles of Massive, Liquid Weight, and Pro Cal, with the A5 feed guide to map it all week by week. Built for growers who want precision — chelated micronutrients with three sources of iron for a wide pH range, no carbonates or synthetic dyes, at home in soil, coco, or hydro, from phenohunters to commercial dosing systems. That's the strength of a 3-part base: a more complete nutrient profile, and the ability to give your plants exactly what they need at exactly the right time — the control that crafts bigger yields. Bought separately, these bottles total $458.40.
What's in the Box
- Genetics matter — check with your breeder for cultivar-specific feeding guidance, and watch for signs of over or underfeeding like tip burn, curling, or interveinal discolouration.
- Add each GP3 part to the reservoir separately, stirring between each. Never combine concentrates undiluted — Green Planet warns this can cause lockout. Adjust pH last.
- The A5 booklet maps every bottle in this kit to its week — run the chart as written for a full cycle before you start customising ratios.
How to Use It
Pairs Well With
The veg base re-up — 5L and 20L sizes bring the per-litre cost down.
GP3 BloomThe flowering base re-up when the kit bottle runs dry mid-flower.
GP3 MicroThe full-cycle backbone — this one empties first, running veg through bloom.
All Starter KitsCompare every starter bundle on the shelf before you commit.
Frequently Asked Questions
Why use a 3-part nutrient instead of a one-bottle feed?
A 3-part base gives you a more complete nutrient profile and lets you adjust each part independently, so your plants get exactly what they need at the right stage. That control across the whole cycle is what crafts bigger yields.
Is this everything I need for a full grow?
Yes. The kit covers the base nutrition plus root, vitamin, strength, calcium, and bloom support — twelve bottles and the feed guide take a grow from first feed through to harvest.
Is it cheaper than buying the bottles separately?
Yes. The twelve bottles sell individually for $458.40 in total, so the kit is a saving of over $100 on the full program.
GP3 Starter Kit or Dual Fuel Starter Kit — which should I choose?
This one for control — the 3-part base is adjusted stage by stage and the additive line-up covers roots to resin, suited to growers who want to dial everything in. The Dual Fuel Starter Kit is the simplicity pick: two bottles at 1:1 all cycle. Both finish a crop well.
Does it work in coco, hydro, and soil?
Yes. Every bottle in the kit is formulated for all growing media, and the clean, fully water-soluble chemistry suits recirculating, drain-to-waste, and commercial dosing systems alike.
Can I mix the GP3 concentrates together before adding to water?
No. Green Planet advises that combining the concentrates in undiluted form can cause nutrient lockout. Always add each part to the reservoir separately, stirring between each.
The Full Program. Total Control.
$458.40 of bottles in one box. Free shipping over $499*.