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Seasonal Planting Calendar

Updated May 2026 · 0 plants · 0 actions

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Southeast stretches 218 frost-free days — long enough for succession plantings, overwintered brassicas, and a real summer heat window. September is the editorial lens for the workhorse month of september gardening. Pick a USDA zone above to compare calendars.

Zone 8a in September

☀️ In-season7 weeks to first frost
September is in-season for Southeast — your 218-day growing season is the long-form gardening calendar. Direct-seed succession crops, transplant the second wave of brassicas, and stay ahead of weeds and water before the first frost window 7 weeks out.

About Zone 8a

USDA Zone 8a (Southeast) has an average last frost of Apr 1 and first frost of Nov 5, giving roughly 218 frost-free days. April 1 average last frost. Mild winters allow kale, collards, and brassicas overwinter. Sources: Clemson Extension, Auburn Extension & Deep South gardeners.

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