Feeding your potted Buxus

Whatever plant you’re growing in a container it will need feeding. A slow release fertiliser for foliage, such as pelleted Vitax Q4 can be added to the surface of the compost. But box (Buxus sempervirens) is a voracious feeder and if you starve it, it will take on a yellow metallic tinge that looks awful. Seaweed feed will restore green lustre and also toughen the foliage against box blight, a problem exacerbated by leaving tiny box snippets either in the box bush or underneath. Remove any clippings assiduously. Cones and spirals are more immune because water runs off them better than it does with balls. If you’re troubled by this problem variegated box, Buxus sempervirens ‘Elegantissima’, seems immune.

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