i was given a Canna lily, which has flourished in the garden, and grown quite tall, with amazing flowers. i just love it and want more. I found a couple in the "dead zone" of a garden centre. They've finished flowering and look very pot bound
my question is, should I plant it now or wait till next year, do I need to dig it up over winter, like dahlias and can I split it into several plants- and if so, when ?
ooops, that turned into several questions !