"DS" wrote:

I was wondering if anyone could advise me how and when to split a large
water lily currently going wild in my garden pond.
Any advice gratefully received.

I raise hardy water lilies. They have a large "tuber" that can become
very long. I wait until they are dormant and just break it into smaller
pieces about 8 to 10" long. I remove any soft parts since that is rot.
If it is big enough, I just keep parts that are free of soft areas.
Then I repot with the "tuber" at an angle slightly up from the
horizontal. Mine had a tuber that had grown over 50' long and I broke
it into about 25 pieces that were good and solid. Now I am going to try
to keep it under control and in lily pots.

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