How much does temperature matter when hardening off plants?
I know you're supposed to gradually introduce new seedlings/plants to more and more direct sunlight to get them used to the powerful rays of the sun compared to grow lights.
What about temperatures? Do the plants care if it's say 45 degrees when they're set out in the early morning?
Being a working stiff, when I leave in the morning it's often much cooler than it will be by the afternoon but by the time I get home, there's very little sunlight left for hardening off.
So will I stunt the plants by putting them out on cool mornings?
I'm asking specifically about broccoli now but the question goes for all plants. Even when I'm ready to harden off tomatoes and peppers we still have some cool mornings.