Planting Isn’t About the Date: Why Your Soil Needs to Reach 60°F Before You Commit

https://cozmicway.com/seasonal-landscaping-mistakes-homeowners-make-every-year/

When Backyard Gardeners Trust the Calendar: Jenna’s March Mistake Jenna planted her tomatoes on a warm March weekend because the calendar said "last frost passed" and her neighbor had already planted