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I planted 12 allium Purple Sensation and am very disappointed that only 7 have buds. All have numerous, healthy-looking leaves. Should I leave them all where they are and hope for better next year? Or discard the non-flowering ones? Or is there something I can do to get them flowering? Just a thought - might they still produce flowers?


Leave them, mine seed themselves and I just let them get on with it. My original ones still flower.


I've lost count of how many alliums I've planted over the years, but now have them all over the place - which isn't a problem!

I'd leave the ones which aren't looking as though they'll flower this year, let the leaves die down and I think there's a good chance they'll flower next season. It might be an idea to let the ones that do flower run to seed, so they will gently increase naturally.

Thank you both for your advice. I'll let them die back - and hope for better things next year! A related question: when is the best time to move alliums to another spot?


As soon as the flowers have finished, the bulb has then gone into hibernation.


Thanks for the clarification.

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