Plagron asks you to make two choices that are independent of each other. The first is your substrate: Terra for potting soil, Cocos for coco, Hydro for systems without soil. The second is the route: feeding minerally for control and speed, or naturally with the Alga line and organic soil improvers. That is why the ready-made kits are called 100% Terra and 100% Natural: they are two complete ways of working, not two price tiers.
The base lines
Terra Grow and Terra Bloom for soil, Cocos A and B, Hydro A and B, and Alga Grow and Bloom as the organic option. Around them sit the familiar stimulators: Green Sensation and Power Buds for flowering, Power Roots and Vita Start at the beginning, Sugar Royal, Pure Zym and Silic Rock. For a ready-made start there are the Easy Packs and the Top Grow Boxes in both routes.
Why our figures sometimes differ from other shops
Plagron revises its formulations, and the trade does not always follow. We have run into this with this brand more than once: analyses and dosages circulating identically everywhere while Plagron's own product page now publishes something else, sometimes with an explicit notice that the composition has changed. So we take our figures from Plagron itself rather than from the rest of the market. If a number here differs from one you saw elsewhere, that is nearly always why.
Two things to watch
First, some products have had their dosage and application window changed without the composition changing, so read the directions on the bottle you actually have. Second, not every Plagron product suits every system: Plagron themselves advise against some organic products in recirculating setups. That is stated on the product page concerned.
Frequently asked questions
What is the difference between 100% Terra and 100% Natural?
The first is the mineral route, the second the natural one. Both are complete schedules, so you pick one rather than running both.
Can I use the Alga line in coco?
Coco asks for a different calcium and magnesium balance than soil. Check the product page for whether a product is intended for your medium.
My bottle smells different from last time.
That can be correct after a revised formulation. Compare the label against what Plagron publishes now before assuming something is wrong.
