Ericaceous

AS well as benefiting from an acidic (ericaceous) soil/compost, the likes of rhododendrons, camellias and blueberries all perform better with an ericaeous feed. In the border these plants will benefit from an application of sulphate of ammonia or sulphate of potash in spring and early summer, and in pots, they should have slow-release granules mixed in the compost or be regularly given a liquid ericaceous feed.

Containerised plants need regular feeding, as they only have what's available in the pot

Apply liquid feed every 2 weeks, spring to summer..

..or add controlled release feed to pots once, in spring