By Debsalison
Lincolnshire,
United Kingdom 
Hello, how long do alliums last, mine have flowered for the last 3 years but are half the size this year. I dont lift the bulbs, should I ?
Thanks x
18 May, 2014
I don't either though they do set seed. I suspect the very wet winter/spring has had an adverse effect on them. I would wait and see what they are like next year.
30 May, 2014