Keeping potted trees healthy
Trees and shrubs in containers can only access finite levels of water and nutrients, so they need more care than those in the ground. Feed monthly with blood, fish and bone or Vitax Q4 between April and September, forking it into the compost and then watering well. Acid-loving plants such as blueberries, azaleas and rhododendrons should be fed with an ericaceous fertiliser. In spring, repot, topdress and root-prune potted trees and shrubs.…