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After some years in pots, they are now producing lots of young shoots. At the end of flowering, should I lift the bulbs and take the smaller ones out?
Should I repot immediately or overwinter them, then repot in the spring?
Sorry for the delay in replying. When the lily has finished flowering, cut the flower heads off and leave the foliage and stem to die back naturally. Once it has all turned hollow and yellow, it can all be removed. It should be well into Autumn by this time, you can then lift your bulbs, divide them and replant them. Leave them outside for winter as your lilies like a cold dormant phase. Just ensure they don’t get too wet and there is adequate drainage.
The Hart Family