The first seeds to show germination are the basil and alyssum. We’ve been having some extreme weathers from high 80ºF for 3-4 days and then over the weekend it rained going low as 46ºF. I moved the tomato seedlings indoors under heat mats. To start seeds, warmth and moisture is needed. Some require more heat than others.
Here’s a list of optimal soil temperature (from low to high) needed for seeds to germinate:
Chives, Onion, Scallions: 60-70ºF / 15-21ºC
Alyssum: 65-75ºF / 18-24ºC
Borage: 65-75ºF / 18-24ºC
Nasturtium: 65-75ºF / 18-24ºC
Basil: 70-85ºF / 21-29ºC
Tomatoes and Peppers (and many other nightshades): 75-90ºF / 24-33ºC
