Finding Your Seasonal Windows

The frost date baseline

Every plant has a thermal limit. Cool-season crops, like kale and peas, tolerate light frost and grow best in spring or autumn. Warm-season crops, like tomatoes and courgettes, will perish in cold temperatures. To plan effectively, you must find your area's 'last frost date' (for spring) and 'first frost date' (for autumn). Check your local gardening extension website or look up your regional climate zone. Once you have these dates, you have your planting calendar boundaries. The mistake to avoid is planting by the calendar month rather than the weather. A warm April one year may be a freezing April the next. Keep these dates as your core reference. If you plant too early, you risk rot or frost damage; too late, and the heat may wilt your seedlings. Build your master schedule around these two essential anchors for the entire year.