Plant & Soil Additives Show filters Hide filters Filter products Clear selection (Size) 2.5L (1) 5L (1) 10L (1) 20L (2) 100L (2) Clear selection (Form) Medium (1) Clear selection (Spec. 1) 1kg (1) 3.5kg (1) 2.5kg (1) 10kg (3) 4kg (1) 200g (1) 360g (2) 500g (1) Clear selection (Spec. 2) 25kg (1) Clear selection (Brand) Empathy (4) Thomas Elliott (1) Vitax (8) Westland (1) Clear selection £ - Clear selection A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Clear selection 1 - 3 of 3 productsItems per page1530456075AllSort byName ascendingName descendingPrice ascendingPrice descendingOffersPopularity Choose display: Clay BreakerBreaks up heavy clay, this will improve drainage and enhances soil warmth to encourage earlier cropping. Will not damage soil pH19 units in stock £ 6.50More info 2.5kg Clay BreakerBreaks up heavy clay, this will improve drainage and enhances soil warmth to encourage earlier cropping. Will not damage soil pH8 units in stock £ 20.00More info 10kg Compost ActivatorApplication rate 136g/m2 - helps speed up the break down of waste in composting.65 units in stock £ 16.00More info 25kg