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How to grow agapanthus from seed


Agapanthus are easy to grow from seed and you may get flowering plants in as little as two years.

Collect seed when the seedhead is becoming brown and the capsules are starting to burst. If the weather is turning cold you can collect seed prematurely and store the whole seedhead in a paper bag, but it's preferable to let the seed ripen on the plant.

Agapanthus seed is thin, laid flat in overlapping layers in a papery capsule that bursts into three separate sections. The seed is black with a papery tail and bears a resemblance to tadpoles.

They are easy to grow, preferably sown fresh and pricked out individually next spring. With a bit of luck they should come to flower the following season.

How to do it


Extract the seeds from their pods. They should fall out easily. Sow them straight away.


When you have sown the seeds, cover the compost with sharp grit.


When seedlings have strong shoots and roots, knock them out of the tray and separate.


Pot up seedlings individually into modules or small pots.


Finish the surface of each pot with grit to retain moisture, keep down weeds and provide drainage around the crown of the plant.

Our tip

If some seedlings are extra-special, select them and when they are big enough divide the plants to make more of your favourites

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Talkback: How to grow agapanthus from seed
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foresterone 24/11/2011 at 15:29

I lost my agapanthus last winter and am glad to find a way to grow some from seed

pam3 24/11/2011 at 15:29

My agapanthus does not produce large seed heads. The flowers fall off before a seed head is formed?? Also, I'm not sure where to keep the seeds when sewn, or the seedlings. In a heated/cold greenhouse or outside? Can anyone help. Thanks.

Gweno 24/11/2011 at 15:30

One of my favourite plants. Think I am going to have to buy a greenhouse for my new seedings & cuttings ! Thank you x

tank 21/01/2012 at 21:04

when should the seed be sown?

newallotmenteer 22/01/2012 at 18:42

I saved some seeds from our agapanthus in Autumn. I have kept them in a paper bag inside a tin so they are dry and not too hot/cold as they are in the garage. When should I sow them? Do they need heat or is an unheated greenhouse OK? Any help/comments would be appreciated.

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