Description:Vermiculite is made from rock but has a high cation exchange capacity, which means that it will slowly release absorbed nutrients back into solution during the subsequent watering. Vermiculite is usually added to perlite at a rate from 5% to 50% to make a lightweight propagation medium that mixes good aeration properties with an ability to slowly release nutrients to the plants over a period of time. Available in... 1ltr = £0.20100ltr = £15.99
Price: £0.20
