What is the coldest weather in which you've been able to grow veggies?

Question

obviously, i'm only talking about hardy veggies, like kale and spinach.

i know they can take 30 F.

sometimes 20 F.

what about 15 degrees F? if it warms up to 45 in the day? Can they still grow?

Answer 1

In high temperatures plants or veggies like bajra can grow.Low temperature....mainly conifers are grown the only crop i can think of is nut trees

Answer 2

kumquats in 20-30 F

Answer 3

ya sure

Answer 4

I really  can't tell you to much I'm just getting in to gardening myself, but there is a good book called The Self Sufficient Gardener! I can't remember the authors name. But if you go to your public library I'm sure they can find it for you, That's were I found it.