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Zone 6A — September

What to Plant in September in Zone 6A

September in Zone 6A: 0 crops to start indoors, 2 to plant or direct sow outside, and 128 entering harvest window. Last frost averages April 29. Reference city: Columbus, OH.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
0 Start Indoors
2 Plant Outside
128 Harvest
Frost risk: Cleared

Frost season has cleared in Zone 6A. The last spring frost typically passed by April 29, and the very latest 10% chance closed by May 15. Tender crops are safe to plant out.

See full Zone 6A frost outlook →

Start Indoors in September

Nothing to start seeds indoors in September for Zone 6A.
Next window: October — 1 variety, including Garlic.

Plant Outside in September

Plant Type Action Target Date Harvest Window
Elephant Garlic root vegetable Plant Out Sep 17 Mar 16, 2027 – May 15, 2027
Softneck Garlic root vegetable Plant Out Sep 17 May 15, 2027 – Jun 14, 2027

Harvest in September

Plant Type Planted / Sown Harvest Window
Atlantic Giant Pumpkin squash May 6 Sep 3
Chayote squash vegetable May 13 Sep 10 – Oct 10
Jicama Mexican Yam Bean legume May 13 Sep 30 – Oct 8 (before frost)
Tepin Hot Peppers pepper May 13 Sep 10 – Oct 8 (before frost)
Alaska Early Pea (fall planting) legume Jul 20 Sep 18
All Year Round Cauliflower (fall planting) brassica Jul 20 Sep 23
America (fall planting) lettuce Jul 20 Sep 13
Black Seeded Simpson (fall planting) lettuce Jul 20 Sep 4
Blonde de Paris (fall planting) lettuce Jul 20 Sep 18
Bloomsdale Longstanding Spinach (fall planting) lettuce Jul 20 Sep 10
Blue Curled Scotch (fall planting) lettuce Jul 20 Sep 18
Bok Choy (fall planting) lettuce Jul 20 Sep 18
Boltardy Beets (fall planting) root vegetable Jul 20 Sep 18
Bouquet Dill (fall planting) herb Jul 20 Sep 23
Broadleaf Classic (fall planting) lettuce Jul 20 Sep 18
Broccolini (fall planting) brassica Jul 20 Sep 28
Bull's Blood Beets (fall planting) root vegetable Jul 20 Sep 13
Burgundy Boston (fall planting) lettuce Jul 20 Sep 13
Buttercrunch (fall planting) lettuce Jul 20 Sep 13
Butterhead Lettuce (fall planting) lettuce Jul 20 Sep 23
Calabrese Broccoli (fall planting) brassica Jul 20 Sep 23
Calendula (fall planting) flower Jul 20 Sep 18
California Bluebell (fall planting) flower Jul 20 Sep 23
Calypso Cilantro (fall planting) herb Jul 20 Sep 13
Canary Yellow (fall planting) lettuce Jul 20 Sep 18
Cascadia Sugar Snap Pea (fall planting) legume Jul 20 Sep 25
Chantenay Carrots (fall planting) root vegetable Jul 20 Sep 28
Chervil (fall planting) herb Jul 20 Sep 3
Chinese Broccoli (Gai Lan) (fall planting) brassica Jul 20 Sep 8
Chioggia Beet (fall planting) root vegetable Jul 20 Sep 23
Copenhagen Cabbage (fall planting) brassica Jul 20 Sep 23
Crimson Forest Bunching Onions (fall planting) root vegetable Jul 20 Sep 18
Crosby's Egyptian Beets (fall planting) root vegetable Jul 20 Sep 18
Curly Kale (fall planting) lettuce Jul 20 Sep 23
Cylindra Beets (fall planting) root vegetable Jul 20 Sep 18
Daikon Radishes (fall planting) root vegetable Jul 20 Sep 13
Dark Green Romaine (fall planting) lettuce Jul 20 Sep 28
Delicatesse Blue Kohlrabi (fall planting) brassica Jul 20 Sep 18
Delicatesse White Kohlrabi (fall planting) brassica Jul 20 Sep 18
Detroit Dark Red Beet (fall planting) root vegetable Jul 20 Sep 18
Di Cicco Broccoli (fall planting) brassica Jul 20 Sep 23
Dill (fall planting) herb Jul 20 Sep 13
Dukat Dill (fall planting) herb Jul 20 Sep 8
Dutch Lamb's Lettuce (fall planting) lettuce Jul 20 Sep 8
Early Purple Broccoli (fall planting) brassica Jul 20 Sep 23
Early Wonder Beets (fall planting) root vegetable Jul 20 Sep 8
Endive / Escarole (fall planting) lettuce Jul 20 Sep 23
Fairy Dwarf Mix Candytuft Flowers (fall planting) flower Jul 20 Sep 18
Fenugreek (fall planting) herb Jul 20 Sep 8
Florida Broadleaf (fall planting) lettuce Jul 20 Sep 8
Fordhook Giant (fall planting) lettuce Jul 20 Sep 13
French Lamb's Lettuce (fall planting) lettuce Jul 20 Sep 8
German Chamomile (fall planting) herb Jul 20 Sep 23
Giant Red (fall planting) lettuce Jul 20 Sep 3
Golden Acre Cabbage (fall planting) brassica Jul 20 Sep 23
Golden Beet (fall planting) root vegetable Jul 20 Sep 23
Golden Detroit Beets (fall planting) root vegetable Jul 20 Sep 18
Golden Globe Turnips (fall planting) root vegetable Jul 20 Sep 8
Green Arrow Pea (fall planting) legume Jul 20 Sep 28
Green Ice (fall planting) lettuce Jul 20 Sep 3
Green Wave (fall planting) lettuce Jul 20 Sep 3
Hot Pink (fall planting) lettuce Jul 20 Sep 18
Igloo Cauliflower (fall planting) brassica Jul 20 Sep 28
Kagraner Sommer (fall planting) lettuce Jul 20 Sep 16
Kuroda Carrots (fall planting) root vegetable Jul 20 Sep 28
Lacinato Kale (fall planting) lettuce Jul 20 Sep 23
Leaf Lettuce Mix (fall planting) lettuce Jul 20 Sep 13
Little Fingers Carrots (fall planting) root vegetable Jul 20 Sep 13
Little Gem (fall planting) lettuce Jul 20 Sep 14
Little Marvel Pea (fall planting) legume Jul 20 Sep 21
Lollo Bionda (fall planting) lettuce Jul 20 Sep 18
Lollo Rossa (fall planting) lettuce Jul 20 Sep 14
Magenta Sunset (fall planting) lettuce Jul 20 Sep 18
Mammoth Dill (fall planting) herb Jul 20 Sep 23
Marvel of Four Seasons (fall planting) lettuce Jul 20 Sep 18
Matador Viking (fall planting) lettuce Jul 20 Sep 6
Michihili Cabbage (fall planting) brassica Jul 20 Sep 28
Mizuna (fall planting) lettuce Jul 20 Sep 8
Monstrueux de Viroflay (fall planting) lettuce Jul 20 Sep 8
Mustard Greens (fall planting) lettuce Jul 20 Sep 8
New Zealand Spinach (fall planting) lettuce Jul 20 Sep 18
Noble Giant (fall planting) lettuce Jul 20 Sep 8
Old Fashion (fall planting) lettuce Jul 20 Sep 8
Orange (fall planting) lettuce Jul 20 Sep 13
Oregon Sugar Pod Snow Pea (fall planting) legume Jul 20 Sep 26
Paris Market Carrots (fall planting) root vegetable Jul 20 Sep 13
Phacelia cover crop and bee forage (fall planting) cover crop Jul 20 Sep 18
Premier (fall planting) lettuce Jul 20 Sep 18
Progress No. 9 Shelling Pea (fall planting) legume Jul 20 Sep 20
Rainbow Mix (fall planting) lettuce Jul 20 Sep 18
Rapeseed Cover Crop (fall planting) cover crop Jul 20 Sep 28
Rapini Broccoli Raab (fall planting) brassica Jul 20 Sep 23
Red Leaf Lettuce (fall planting) lettuce Jul 20 Sep 13
Red Romaine (fall planting) lettuce Jul 20 Sep 28
Red Russian Kale (fall planting) lettuce Jul 20 Sep 18
Royal Carpet Alyssum Flowers (fall planting) flower Jul 20 Sep 18
Ruby Red (fall planting) lettuce Jul 20 Sep 18
Salad Bowl Green (fall planting) lettuce Jul 20 Sep 8
Scarlet Flax Flowers (fall planting) flower Jul 20 Sep 28
Shelling Pea (fall planting) legume Jul 20 Sep 28
Shungiku (Edible Chrysanthemum) (fall planting) lettuce Jul 20 Sep 13
Siberian Dwarf (fall planting) lettuce Jul 20 Sep 13
Snow Crown Cauliflower (fall planting) brassica Jul 20 Sep 18
Snow Pea (fall planting) legume Jul 20 Sep 28
Snowball Self-Blanche Cauliflower (fall planting) brassica Jul 20 Sep 23
St. Valery Carrots (fall planting) root vegetable Jul 20 Sep 28
Sugar Ann Snap Pea (fall planting) legume Jul 20 Sep 14
Summer Bibb (fall planting) lettuce Jul 20 Sep 18
Swiss Chard (fall planting) lettuce Jul 20 Sep 18
Tatsoi (fall planting) lettuce Jul 20 Sep 3
Tendergreen (fall planting) lettuce Jul 20 Sep 8
Tendersweet Carrots (fall planting) root vegetable Jul 20 Sep 28
Tom Thumb (fall planting) lettuce Jul 20 Sep 28
Turnip (fall planting) root vegetable Jul 20 Sep 18
Vates Kale (fall planting) lettuce Jul 20 Sep 13
Vienna Purple Kohlrabi (fall planting) brassica Jul 20 Sep 23
Vienna White Kohlrabi (fall planting) brassica Jul 20 Sep 23
Vietnamese Coriander (fall planting) herb Jul 20 Sep 18
Viola and pansy edible flowers (fall planting) flower Jul 20 Sep 28
Violetta Purple Cauliflower (fall planting) brassica Jul 20 Sep 23
Wando Pea (fall planting) legume Jul 20 Sep 26
Watermelon Radishes (fall planting) root vegetable Jul 20 Sep 23
White Boston (fall planting) lettuce Jul 20 Sep 8
White Detroit Beets (fall planting) root vegetable Jul 20 Sep 18
White Lisbon Bunching Onions (fall planting) root vegetable Jul 20 Sep 23
Winner Kohlrabi (fall planting) brassica Jul 20 Sep 8
Winter Density (fall planting) lettuce Jul 20 Sep 18
Winter Giant (fall planting) lettuce Jul 20 Sep 8

Key Tasks for September in Zone 6A

  1. 1 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
Back to full Zone 6A planting calendar
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