Home Garden Gardening

How to lift and divide agapanthus

Be rewarded with double the number of blooms next summer!
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Double your agapanthus without having to pay extra for them. Imagine what you’ll be looking at in a few months!

WATCH: Graham’s backyard gardening tips

Every two or three years you need to dig up your agapanthus and divide them. You can tell they need dividing if they are flowering less over the summer as they maybe too cramped and need more space to shine. Do this in autumn or early winter. 

Next summer you’ll be rewarded with double the number of blooms from healthy and happy plants. 

Agapanthus
Before: Agapanthus need to be dug up
Divided agapanthus
After: divided agapanthus

Gather your supplies:

  • Organic matter

You’ll also need:

    Garden spade
  • Sharp, clean secateurs or a large, clean knife

Here’s how

Step 1

After they have finished flowering, dig around the root ball with a garden spade.

Step 2

Graham Ross dividing agapanthus

Gently lift the whole clump out.

Step 3

Dividing agapanthus

Divide clump into several small clumps with secateurs or a knife. 

Step 4

Dividing agapanthus

Cut out the remaining flower stems at the base with secateurs and remove old or faded leaves. 

Step 5

Dividing agapanthus

Pull or tease out fibrous roots.

Step 6

Dividing agapanthus

Cut back main roots with secateurs.

Step 7

How to divide agapanthus

Trim leaves by about two-thirds with secateurs. 

Step 8

Plant agapanthus

Dig hole for divided plants, ensuring there is enough space for them to thrive, about 30-50cm apart for big ones, about 15cm for small ones. Dig in organic matter to soil. 

Step 9

Divided agapanthus

Plant, pressing down soil gently but firmly, and water in. 

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