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When do I divide Agapanthus

in Plants
I have two fantastic pots of Agapanthus, but they have been in the same pots for about 4 years now, and really look as if they are trying to escape through the bottom. Is it time to divide them, and, if so, when do I do it?
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Agapanthus love being pot bound Annie, if you want to divide them you can do so now if they've finished flowering.
Been in the same pots for 4/5 years, and feel they're now being strangled as the roots go round and round, and out the bottom. Having said that, the display has been phenomenal this year, so how do you make the decision?
Thank you so much for all your help, I think this site is absolutely brilliant for relatively inexperienced gardeners such as myself.
Leave well alone. 4 years is not long.They will tell you when to split them. Take some seed instead or look for seedlings coming up nearby. Mine seed into gravel paths and are easy to rescue. i have a new crop annually.
Hi all. I have had agapanthus for many years now but which have never flowered. They are now in a large planter in a much better growing poaition are putting up shoots. They were doing well last year but wood pigeons pecked them to pieces, as they were sitting beneath a bird feeder. The feeder is elsewhere now but I'm worried that, yet again, tgere will be no flowers. No flowers, ever. So what I want to do is divide them and put some into a separate pot where I can look after them and get them nicely root bound. Is it ok to divide them now or should I wait until August, hopefully after they have flowered?
Michael,
They need warmth especially round roots, that is why many keep them in pots we had some that did not flower moved them to warm patio- bingo. Feed with high potash feed as well.
Thanks Iain,
That makes sense. They're on a roof terrace so will get plenty of sun and warmth in pots, rather than a huge planter. Thanks for the advice!
Feed in late summer and early autumn to build up next year's flower buds.
Will do Woodgreen, they have been a little neglected in the past - but no more