Plants Won't Freeze

The weather app says 37°. Your tomatoes feel 31°. On clear, still nights the ground loses heat fast, so the air at plant height gets colder than the forecast low. Plants Won't Freeze estimates that garden low for your exact spot and sends you one note before dark: cover the tomatoes, bring the pots in, or relax. TONIGHT AT A GLANCE • A clear verdict: no frost, close, frost, freeze or hard freeze • Your garden's low next to the weather app's number, and why they differ: clear sky, calm wind, dry air • What to do, in plain words, and the hours it gets coldest ALERTS THAT FIT YOUR GARDEN • Pick what you grow: tender crops like tomatoes, peppers and basil; pots and tropicals; half-hardy lettuce, chard and dahlias; hardy kale and leeks; hoses, rain barrels and outdoor taps • Say whether your garden sits in a low spot, on a slope or in town • Choose your note time: every evening in frost…