Hoop tunnels.
 

Does anyone here use these to grow things in the winter?

Hoop tunnels.
 

yes.

Hoop tunnels.
 

Sure, it just depends where here is for you and what you want to grow.

John!

James wrote:
Does anyone here use these to grow things in the winter?

Hoop tunnels.
 

Here where average temps range from 20F night to 50F day.

I want to grow anything edible. Tried radishes without cover but
freezing night temperature got them.

Hoop tunnels.
 

Collards, spinach, lettuce, mustard greens, cilantro, kale

John!

James wrote:
Here where average temps range from 20F night to 50F day.

I want to grow anything edible. Tried radishes without cover but
freezing night temperature got them.

Hoop tunnels.
 

It is late to start regular winter veggies. I have radicchio, kale, bok
choi and collards, all started between June and August. The temperature
has not been above freezing in 4 days here, but of course it is above
in the hoophouses. Today I harvested a bucket of assorted greens, all
unfrozen.

If you put a hoophouse on the garden now, you would be better off
starting lettuce, arugula or radishes. Spring things that sprout even
in cold soil.

Hoop tunnels.
 

Eliot Coleman is a big proponent of hoop houses - he says they shift
you 2 zones south.

My experience in zone 5 bears this out. Cool weather crops should be
planted late in the season, but not too late. They should get close to
mature before your really cold weather hits. I had radish, chinese
cabbage, lettuce, beets, onions and 1 pea plant before we got nailed
with sub-zero temps. Now I have to wait until late feb/early march to
get things going again.

In general, daytime 30-40 degrees can produce temps in the hoophouse
50-70, depending on sunlight of course :)