The GreenPlanet Ocean Magic is a liquid kelp additive made from cold-pressed Atlantic kelp, Ascophyllum nodosum. Used through the vegetative stage as a root drench or foliar spray, it supplies the amino acids, biostimulants and trace nutrients kelp is known for, supporting root development and helping plants cope with stress such as transplanting.
Why kelp
Kelp is one of the oldest growing additives for a reason. It carries naturally occurring amino acids, biostimulants and trace elements that support root growth and nutrient uptake, and it helps plants hold up through stresses like transplant shock and dry spells.
How to use it
As a root drench, dilute 0.5 mL per litre and apply to the medium. As a foliar spray, dilute 5 mL per litre and spray in weeks 2 to 4 of veg, then weekly for the next 2 to 3 weeks, on dry leaves.
Full specifications
| Manufacturer | GreenPlanet Nutrients (British Columbia, Canada) — bottled in Australia under licence by WHG, Melbourne |
| Type | Liquid kelp additive |
| Source | Cold-pressed Atlantic kelp (Ascophyllum nodosum) |
| Root drench | 0.5 mL per litre |
| Foliar spray | 5 mL per litre — veg weeks 2–4, then weekly for 2–3 weeks |
| Stage | Vegetative |
| Sizes | 1 L · 5 L |
| Compatibility | Soil, coco and hydro |
FAQ
Can I use it in flower?
GreenPlanet's directions are for the vegetative stage.
Root drench or foliar?
Either. Root drench is simplest; foliar gives a quick boost in early veg. Spray with lights off or low to avoid leaf burn.
Can I mix it with another brand?
We don't recommend it. GreenPlanet's feed programs are built around its own bases and additives, so results are most predictable when you stay within the range.