100% organic substrate for your seedlings — NPK pre-fertilized for healthy, self-sufficient germination.
Hand-picked by BloomLED, French indoor growing expert with 10+ years of experience.
2.5L · 100% organic · NPK 5-3.5-8 · Made in France
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Start every grow with a 100% organic, pre-fertilized substrate designed in France. GD SeedMix delivers the ideal balance of water retention and aeration for vigorous young plants from week one, indoors or outdoors.
| Specification | Value |
|---|---|
| Volume | 2.5 litres (2.5 kg) |
| Composition | 100% organic substrate |
| NPK ratio | 5 - 3.5 - 8 |
| Origin | France |
| Use | Seedlings, cuttings, young plants |
The 5-3.5-8 nitrogen-phosphorus-potassium blend is ready to use: from germination, your seedlings get all the nutrients they need for a vigorous start, no extra amendment required.
The fine, airy structure ensures consistent drainage while holding the moisture roots need. The result: a dense, healthy root system that resists overwatering.
A 100% organic substrate with no synthetic chemical fertilizers: the ideal choice for demanding growers who want a natural approach, indoors or outdoors.
Yes, its balanced composition and fine structure suit most vegetable, herb and ornamental seeds. For delicate seeds, lightly sift the surface to make emergence easier.
How long does the NPK pre-fertilization last?The pre-fertilization covers the first 2 to 3 weeks of development. After that, supplement with a growth fertilizer suited to your crop to support the vegetative phase.
Designed in France, hand-picked by BloomLED: a bio, accessible and high-performing substrate to give every grow the best possible start.