Hi, iam Estela Foster, Enjoy your time-off from me!
How Long Does It Take For The Ground To Freeze After First Frost? [Solved]
It does depend somewhat on soil type and soil hydration as well but in general, you need 5 or more days of subfreezing temps before the soil freezes solid. It would be pretty unusual for ground soil to be frozen anywhere in the continental US now (mid November).
How to Protect Plants from Frost & Freeze // Gardening with Creekside
It happens every year.
Freezing ground / frost-heaving simulation
The video shows
How I keep harvesting peppers long after the first hard frost
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