My wife and I are going on a long weekend vacation - Thursday through Sunday. My pepper and tomato plants are ready to go outside, but the weather is not cooperating. Our last frost date is May 20 and I'm in 6A
The weather prophecy says that we are going to have a lows of 54, 44, 30, 37 on Sunday.
I'd like to put them out under some row cover or plastic, so I don't have to worry about watering. After I get back, I can easily run heating cables or light bulbs to keep them toasty if the lows go any lower.
If your last frost day is May 20, I'm thinking it's a bit early to put them in the ground. If you can't water them during vacation and really want to put them out, I'd do the row cover and string some Christmas lights (incandescent) around them on a light timer to help keep them warm at night. I'd lean towards row cover since plastic can quickly build up too much heat if it gets sunny and you aren't there to remove it.
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