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really winter hardy cacti and succulents
In Ottawa, temps dip to -30. I have some Opuntia that survive under a foot of snow but Lobivias and some Echinocereus rotted in the wet spring. Looking for other cacti or Graptopetalum or Sempervivens or Delosperma that will survive our winters.
Thanks for any species you can think of and if you know where I can obtain them.