Two nights here around 19-21F. Weather was cool last week. I was almost thinking our weather was the same as
Tampa, FL. Well we are zone 10a except for the odd 8b 19-21F night every few years. Just enough freezes to not successfully
grow mango in the ground! School was closed for two days due to ice on the streets. I could feel the ground crunching
under my feet on two days.
Not as bad as last year. Last year we had a week of 80F and then 19F for two nights. It split
the trunk of my 12 satsuma trees, first time ever since 2000.
I protected my 1st year in ground white sapote by covering with a garbage can but it still defoliated.
Due to the threat of greening I planted my carrizo rootstock trees in the ground this year. Most of the
others are on flying dragon. But FD is so slow. Might get a few good years out of the carrizo trees, who knows.
Trees on carrizo grow at least 5+x as fast as FD. In 5 years the tree is almost mature.
Apparently a good freeze like this kills psyllids almost completely, we shall see, had them last year.
I looked back 10 years and there are just a 8b few nights!
https://weatherspark.com/y/9247/Average-Weather-in-Houston-Texas-United-States-Year-Round