Niall wrote
im curious on this too

I have a west facing aspect where
i would like to put a temp greenhouse to see how it goes
any thoughts on that, i want to grow tomatos
gets light from 3pm to sundown

If it's an open aspect, light but just no sun, it should be OK.
A neighbour still grows toms in his greenhouses which are overshadowed
within 10ft by a huge unkept Leylandii hedge on the south side so again only
sun first thing in the morning.

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Regards
Bob
In Runnymede, 17 miles West of London