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Lows in the teens - what to do?

Posted by potterhead2 z5a NY (My Page) on
Thu, Mar 24, 11 at 11:34

Hi all,
I'm new at wintersowing, I did a small successful try last year so this year I'm doing a lot more of my seeds this way.

I have a small coldframe which is housing my flats of seeds outside. I have a heating cable buried a couple of inches down, which I turned on a couple of weeks ago after the seeds started sprouting. It doesn't really heat the flats, just keeps the ground from freezing. The ground is still quite cold to the touch.

I have lots of sprouts (YAY!!! Happy Dance!). Mostly cool weather vegetables; lettuces, arugula, spinach, and pak choi. However, the marigolds have also sprouted.

Problem: It's going to get really cold for the next few days (lows will be in the teens overnight for the next 5 days). I'm pretty sure the vegetables will be okay, but I'm worried about the marigolds. Will they be okay out there? Should I take them inside?

What would you do?


Follow-Up Postings:

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RE: Lows in the teens - what to do?

Are your plants in the ground or in containers?
What you're doing is not, strictly speaking, winter-sowing, since we put them out with no heat or protection beyond the covering over the container.
I'm sure your vegies will be fine, my arugala and lettuce have been out under the last 2 days of snow and temps in the low '30's.
Not sure about the marigolds.


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RE: Lows in the teens - what to do?

The plants are in containers above ground. They are flats - seed starting trays without the lids. So the only protection is the "covering" of the cold frame. I think of it as a giant "lid" over all the flats. The heating coil does not provide heat for the flats, it is buried a couple of inches down. If the plants were buried in the soil of the cold frame they would get the benefit of the heating coil, but as they are above ground they really don't. I'm concerned that they will freeze solid. Temps will be highs in the 20s and lows in the teens for the next 5 days.

Last year I did tomatoes and marigolds successfully in the same cold frame, but it did not get as cold as it is forcast to get this week after they sprouted. So far the tomatoes have not sprouted, just the marigold and the cool weather veggies.


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RE: Lows in the teens - what to do?

oh I see. :)

I would say that no worry about what has not sprouted.
If you are worried about the marigolds, toss a sheet over them, altho I think being in a cold frame, even an unheated cold frame, I think they would be fine.


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RE: Lows in the teens - what to do?

Thanks ellenrr, I was looking for an experienced WSr to say "I think they would be fine". Not like I'm counting on your opinion that they will be fine, but that what I'm doing seems reasonable, and I don't have to bail and put all the flats in the garage.

One of the things I love about gardening is experimenting. Sometimes things work out the way you hope, sometimes they don't.

If all the marigolds die, I have time and seed to re-start them. Now, if all my precious tomatoes had sprouted and died - that would be a different story ;-).


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