The Boababs

These and other related plants are overwintered just like erythrinas but when repotting them being still green is not enough you are not safe until they actually start shooting and if the weather is poor this can take a long time. So I've listed those that have made it to the first stage

Adansonia Za a few made it
Adansonia Madagascariensis only had 2 plants one being a survivor from last year, that one is ok, the other !!!
Adansonia Rubriostipa a couple
Delonix regia most, but not sure if they will regenerate as grew poorly last year (from birth they grow normally grow about 3'+in a summer, last year barely a foot (this goes for nearly all of them, some boababs can do nearly4', they have to I guess))
Delonis decaryii nearly all, these generally regenerate well even if you need to wait a bit
Delonis floribunda as above
Chorisia speciosa both survived (these should have been listed in yesterdays lot) and regenerate easily.
Ceiba pentandra crap growth expected them to fail and they didn't disappoint
Bombax malabricum likewise

We so need a good spring and summer

In summary with a bit of effort and good weather you can store a veritable tropical forest in a shoebox, can't be bad.

I will be extending the trial further this winter and will also probably try boxing up desert plants.