Well, considering my Vitex are still in the sleeping-seed stage, if I plant them out this year, they may be too young to withstand the winter. Maybe keep a few in pots until next spring. IF they germinate :)
I had an Agave neo-mexicana in the garden, a real small one, but it SURVIVED two winters back. It looked bad, though.
SO I dug it up, and all roots were gone. I potted it nicely and had it inside.
At least I know it's hardy if kept dry. I will plant it out and try to keep it dry in winter. In summer no problem... I may even have to water it