Do I need to re-harden off my hanging plants?

I had a lot of hanging plants in my unheated greenhouses and now we have been threatened with 1c or 34f for the next 4 nights. I brought them all into my living room for the duration.

Do I need to re-harden them off again or can I just fling them back in when the night lows are back into the 40f range?

Many thanks for any help

 

Tricky one, but I think I would just leave them in the greenhouse and cover with something like a double thickness of fleece.
Or old sheets or blankets.
The nights are pretty short now and the lowest temperatures are as the sunrises, and for only a short time.

 

Oh dear. I've already brought them in. Probably a good thing as it is now forecast to go below 32f 0C - sooo, do I re-harden them off?

 

I wouldn't bother. To tell the truth I don't even do the first harden off... I just move them from indoors to the (unheated) greenhouse straight away. Then I transplant them straight away. Few seedlings died in the process in all the years.

Hardening off may be good for the seedlings. But I am just too lazy to do it.

Edit: my plants were mostly tomatoes, corns, broad beans etc. Yours may be different.

 

Good to know @blacktulip . My tomatoes and peppers are still out in the heated greenhouse. The ones I brought from the unheated are a variety of flowers. Mostly in their hanging pots and some ready for planting in the gardens. They are lupins, marigolds, salvia, thumbergia, ranunculas, sweat peas, gazanias, nicotiana and a couple of other items. After all this time growing them from seed (except ranunculas) I decided not to chance losing them.

 

Would be so much easier if you could just put a heater into the greenhouses set at a frost setting.

But I dont think I could be bothered to go down the hardening off route, they would just have to be moved back out once night temps were ok to do so.

 

@pete I used an electric heater way back. Cost too much to run. About £10 a night.

Forgot to mention that the natural gas heated greenhouse is chock full and that's why I didn't put them in there

 

Not sure about your electric prices in Canada Lori but if it was costing £10 a night over here, just to keep a greenhouse frost free, I'd be inclined to think there was something wrong with the thermostat, especially if the outside temperature was only slightly below freezing.

 

Our electricity rates soared by 225 percent in the last 10 years because of silly agreements for less tha n reliable green energy. That and the smart meters which jack up the price at different times of day did a nasty to us. I have remote thermometers and heat/cold alert sirens and they didn't indicate a faulty thermostat.

We are just being skrewed and tattooed as patsy ratepayers and we can't vote them out because our public service unions pour lots of money into election swinging.

 

Of course it does depend on how big the greenhouse is