How to grow agapanthus in a pot

Do it:

May

Takes just:

15 minutes

At its best:

Jun, Jul, Aug

Agapanthus make fantastic patio plants and look particularly good grown in terracotta pots. Given a sunny spot and free-draining compost, they'll produce spectacular flowers in June, July or August, depending on the variety.

Although agapanthus are drought-tolerant you’ll still need to water your pots at least a couple of times a week through the summer. They'll also benefit from a high-potash liquid feed once a week to promote good flower development.

The benefit of growing agapanthus in pots is that it’s easy to bring them under cover in autumn, so they’re protected from winter cold and damp. An unheated greenhouse or conservatory is ideal for over-wintering.

You will need

Agapanthus

Terracotta pot

Loam-based compost

Horticultural grit

Broken crocks

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Choose a large pot with good drainage holes, and add broken terracotta or 'crocks' to the bottom of it.

Fill the container with compost on top of the broken crocks. Use a free-draining, loam-based compost, such as John Innes No.3, with some extra grit mixed in.

Plant a single large agapanthus, or group several smaller ones together 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.

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.

Agapanthus usually flower in June, July or August, depending on the variety. Very young plants may need a year to become established before they flower.

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.

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