Check the arcives for an extensive Jujube discussion. The item of note is
that
only certain varieties seem to be able to toerate high humidity when
pollinating. I'm zone 5 but in high elevation New Mexico now where Li and
Lang
certainly fruit. When I was outside Chicago also in zone 5 and with more heat
units they did not seem to fruit.
Martha
[NAFEX] Re Jujube in the Midwest,
martha_davis, 03/20/2006