Doff Liquid Seaweed Concentrate 1L £4.99 Out of stock SKU: 378 Category: Plant Fertilisers Organic and natural plant growth stimulant Makes up to 300litres Organic & natural for the stimulation of vigorous & healthy growth For use on plants, shrubs & vegetables Contains seaweed Related products Out of Stock DOFF PATH & PATIO WEEDKILLR RTU 1L £5.20 Read more Out of Stock Doff. Tomato Feed Concentrate. 2.5L £8.99 Read more