I've been growing lettuce and spinach in the coolest spot of my greenhouse since January, so I'd think a shady spot would do just fine. Lettuce won't even germinate over 75 deg and spinach would just as soon bolt as look at you. I've been growing Buttercrunch, Summer Crisp and Romaine along with a generic "Spinach" and we've been munching on it for a couple of weeks now. I thought lettuce wanted sun, too, but this is the first year I've had any I could actually eat!
