The day after freezing weather I decided to rush it and go ahead and put a few plants in the ground. I used some walls of water — these covers create a microclimate that lets you plant outdoors earlier than normal. They are a thermal mass that heats during the day and then return that heat to the plant at night. They also protect from direct sun and wind. I didn’t harden these plants off at all, went directly from the warm cozy house and grow lights to directly outside. We’ll see how it works out!
It got down to 33° last night and the plants look happy this morning no problems detected.
I didn’t take a picture of the 4 additional tomatoes I planted in the raised bed in front of the house.
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How low in temp are these effective for North Texas? Is 28o too low?
I don’t think 28 is too low, I’m pretty sure I’ve survived sub-freezing temps before with them. But it depends on several things— 1) how much heat the water walls absorb during the day and 2) how extreme (temperature, wind, duration) the cold is that you have to get through. They aren’t a catch all for every situation, but they are great and work well.
Thank you! This is helpful. We have a couple 28o nights still but the days will be in the 50s-60s so I might try them soon. I had good success last year but started in early March.