I had the pleasure of spending some time with Adriano yesterday.
as far as extending the growing season, he stresses getting an early start.
So in cooler places like z5 z6, in the warm days of spring/april, may, he gets his plants out into the sun, and if there is a possibility of frost, they go back into winter storage for protection. Then out again when it warms up enough.
grant
Z5b kitchener