probably until they root ... do you know how to check??

the outdoors part makes me wonder where you are ... it doesnt show me above ... that could be a lot of electric if you get a cold winter ... but i like the protected corner ...

ken

Good question.

Depends how cold it gets. Not much will happen below freezing. 40's things will move along slowly. 50's you'll get top growth.

I'd say monitor temps and give it heat if temps drop too much.

Scientific experiment? :-)

Ken, Bill,

It is under the deck, which is under an awning (doubly protected) and on the west side (so filtered sun only from 2-5). When we had 22 degrees the other night, I was at 43 inside the tent, and the mats were at 65.

Everything I'm growing is hardy to my zone, so they are fine, even as unrooted cuttings, in 10s or 20s. The poly tent keeps the temp up, and the raised bed as 1 1/2 inch foam board too.

I think you're okay as far as cold and zone hardiness.

But with no supplemental heat, you probably won't have much happening during the coldest part of the winter but that's okay.

Once temperatures rise and stay warmer, later in late winter/early spring, you'll still have plenty of time for things to root,

You may want to check humidity occasionally so things don't dry out.

in my z5 MI ... with prevailing winter winds from the NW ... that corner would be a deep freezer ... heat mats or not ...

im wondering if you re going to accomplish much of anything using all that electric all winter.. and if you will be no further ahead if you just turned it off for winter ...

that said.. i am always up for an experiment.. i learned more thru such .. than i ever did reading ...

ken