Sure they can, I have 10 outside right now.

I planted them in late May/June in the hope I get the best summer months during the bloom. So it will veg for May/June and bloom for July, Aug and maybe some of September.

Technically you can plant autoflowers whenever you like as the tilt of the earth and the shortening of the days are not key to inducing bloom. It is a genetic trigger.

You will of course find that your yields will be much smaller than the summer during the colder days which have less sunlight. More light and heat = more bud.

So go for it, and keep us posted. Oh, by the way, I planted a very hardy autoflower called Mataro Blue Feminised Autos. This plants is very hardy and genetics are Siberian !

That might be the seed for you. Talk to the member Cannabis Seeds on this site. He/She will let you know how to get them through the Rhino Seed Company.

I always shop with them, discrete packaging and fast postage. The seeds are wicked powerful. You can check my grow journal in my signature. Look for grow no. 2.

The plants I have in my tent aren't autos. They are Blue Cheese x 2, Chronic x 1 and Big Bang 2 x 1. Yummy !!!

Good luck my friend

S.L.