If your agapanthus are planted in pots, feed them with a liquid all-purpose plant food, such as this Miracle Gro one from Amazon, while if they’re in a border treat them to a granular fertiliser.

Agapanthus, or African lilies, are beautiful plants for a sunny borders and pots. They flower in summer and like well-drained soil. The deciduous kinds that lose their leaves in the autumn are hardier ...