Hi

Greenhouses only extend the growing season a little especially if they
are unheatd, I have grown my own tomatoes, courgettes, peppers and
cucumbers for a few years without (starting off the plants on a
windowsill etc. ) and also with a greenhouse. If you post what you
intend to grow we canmaye give more specfic advice

happy growing

Barbara
from
www.all-about-tomatoes.com