I hope this topic is in the right section?
I am located in S. Ontario, Canada zone 5. We have irregular snow cover and winters tend to be wet. So far I have not been able to keep 'hardy' Delosperma.
Last winter I tried 2 in pots, and in fall sunk the pots in the ground to keep them warmer. We had excellent snow cover (unusual), but we also reached the limit of zone 5 (-29C) for 1 or 2 days (also unusual). One looked like it was eaten by rodents, and the other was barely alive.
This year I am trying some in various locations:
- in pots in a shed next to a window--will be cold but a bit warmer than outside, but dry
- in an unheated sun room--cold at night, but a bit warmer during sunny days, more light than the shed
- in the basement fruit cellar--5C, dry, but completely dark
- in a new raised rock garden, grown mostly horizontal wedged between rocks, covered with clear plastic to keep rain out. Cold, but the crown of the plant should stay dryer.
Any other suggestions would be very much appreciated.