wax jambu in san diego?

[green thumps up]

Still new to growing wax jambu. Is it normal for wax jambu tree to lose its leaves in the winter in San Diego? Leaves turned brown before falling off.

My green jambu tree (4 feet height) in the ground in its first winter.

It's gotten cold (26 to 33 F) in San Diego so far.

[Seanny]

I'm in the 40s but my tree dropping leaves.

[CGameProgrammer]

Mine haven't dropped and they are actually growing new leaves/branches but it hasn't been lower than high 40s so far this year. I'm a couple of miles from the coast.

[andrewq]

it got in the 30s here and the jambu i left outdoors had some leaves yellow and drop

[knlim000]

mine is in the unheated greenhouse , still got some green leaves. 2yrs old about 1foot tall.
lowest was 29F inside greenhouse.

[Samu]

For your comparison, I am up the coast in Orange County, my lowest low has been in the low 40s.
Mine is young too, about 6ft tall now, gave out it's first 2 fruits this Summer 2017. The mature leaves starting to drops, and easily detaches itself on a light touch.

I notice from my last season photos, the young sprouts hung on through the Winter and hardened off nicely by February.

By the way, if anyone has the "Sweet red variety" (for lack of better name), I am interested in swapping budwood, jut pm me, thanks!

[barath]

I wonder if there's any value in grafting Wax Jambu on Syzygium paniculatum, which grows all over California as an ornamental tree.  It might provide a small amount of increased cold tolerance.  (This is something I've been hoping to experiment with someday, but Wax Jambu isn't high on my list of experiments.)