At its best:
Jun, Jul, Aug, Sep
Fill a container with compost. Use a free-draining, loam-based compost, such as John Innes No. 2 or 3, with some coarse sand, horticultural grit or gravel mixed in.
Plant a single large agapanthus, or group several smaller ones together, fairly snugly, in a pot. Position the top of the roots about 5cm below the rim of the pot.
Fill around the roots with compost, firming it down to get rid of air pockets. Keep the 5cm gap at the top of the pot so that water can collect and won’t run off.
Agapanthus make fantastic patio plants and look particularly good grown in terracotta pots.
Water well to settle the compost, topping it up with more compost if needed. Add a decorative mulch to finish off the pot and help conserve moisture.
Place in a sunny spot. Very young plants may need a year to become established before they flower. Feed every two weeks with a high potash feed to encourage flowering, until mid-September.
After flowering, cut away the old stems at their base to tidy up the display and prevent the plants wasting their energy by producing unwanted seeds.