Last year I dug up my Lobelias some time in October and put
them in a tray with the intention of moving them into the shed. This was by way of an experiment to see if it
was possible to overwinter Lobelia. I'd
never tried this before. Like most
gardeners I'd always bought them as bedding plants in the spring.
However, I completely forgot all about them and they remained
outside all winter. The trays had no
drainage holes, so the Lobelias spent the winter in two inches of water! I was amazed when come the spring they had all
survived the winter outside in what I can only describe a bog-plant conditions. I promptly planted them out and they were
away in no time and did splendidly.
Whether this was a fluke (last winter was mild) or whether I
have discovered a useful way to overwinter Lobelia remains to be seen, but I'll
certainly try it again this winter.