This general purpose compost is ideal for growing in pots, tubs and hanging baskets where water retention is key. No need to add extra feed or water retaining gels. Now with added Comfrey! – the organic gardeners best friend – a ‘dynamic accumulator’ packed with nutrients is added into the Wool Compost range. Comfrey's ‘Bocking 14’ variety has high levels of potassium, phosphorous & nitrogen for healthy plant growth, larger flowers & bigger crops.