I’m entirely new to gardening and grew up in the tropics where seasons don’t exist so please bear with me—
Does the concept of “last frost” apply to Southern California (Los Angeles)? How cold is too cold? Does it refer to freezing point? Because I don’t believe it’s ever fallen below 40 degrees in my backyard.
Still, the nightly min temperature’s averaged around 50 degrees for the past month or two. Is that too cold to try to germinate seeds in the ground? I’ve planted some seeds in the past week… alyssum, dill, scarlet runner beans, forget-me-nots, marigolds, and sweet peas.
I am in usda zone 9b.