On Sun, 5 Jun 2011 06:31:44 EDT, Grub
wrote:

I put a few of these in my mum's small pond and they were doing ok
although now the edges of the leaves have going brown and look like they
are disintegrating or have been nibbled (??) by something. They haven't
flowered since I put them in a year ago.

Older pads need to be picked off, they only last 10-14 days (is my guess as
I've never kept count). If they were planted too deep in the soil it will
take them awhile to grow out and be able to flower. If it has been a year
since transplant I suspect they will bloom this year.... assuming they
having reached the end of the potting container and/or they've been fed
with some sort of plant stick. ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us