House & Garden Algen Extract®, 250ml

House & Garden’s Algen Extract is a premium blend of Norwegian Sea Kelp containing high levels of active ingredients. Algen Extract promotes vigorous vegetative growth as well as aiding the plant’s nutrient uptake. Made in small batches, you can be sure Algen Extract will always be fresh. Derived From: Ammonium Nitrate, Nitric Acid, Potassium Hydroxide