Hi everyone. I am zone-pushing with white sapote as well as cherimoya in Sonoma County, California. I would love to find some good data on variety-specific frost tolerance in white sapote. Information on cherimoya would be great, too, though I suspect it is even scarcer.
We read in nursery literature that Mexicola avocado is hardy to 18, Stewart to 18, Bacon and Zutano to 24 and 26, respectively. Etc...
So, what about white sapote varieties? Which ones can withstand the most severe blasts of frost? And how low can they go? Anyone have data? I ask as someone who has 6 seedlings in the ground and wants to graft the right cultivars this spring.
Thanks very much!
Alastair