Quote:
Originally Posted by Fire Me Boy!
Central Alabama. It gets actually below freezing maybe a few times a year at most, and never for very long.
If I used a thick stone planter, would it absorb enough heat in the daytime to keep it warm enough to get through the few nights that the temp actually dips below freezing?
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You'd probably be ok in Alabama but I wouldn't risk it. What you can do is get a soil thermometer and leave an empty planter out.
I don't know what terminal temperatures are for the crops your asking about, but soil thermometers are cheap and an easy way to see how much variability you have.
If you've never used one, just stick it in the soil at the coldest part of the morning, go drink a cup of coffee, check the temp and then put it in the planter, drink more coffee, check and compare.
If I were you I wouldn't leave it out without knowing the variability.