When to plant cabbage in Charlotte, North Carolina

March 2 – March 16

Transplant outdoors · typical Charlotte year

Climate basis: NOAA station Charlotte Douglas AP, NC (USW00013881), 6 mi (10 km) from downtown Charlotte (ZCTA 28202 centroid), elevation 728 ft, on the 1991–2020 climate normals. Transplant cabbage outdoors from approximately the dates above, anchored to the median last spring 32°F freeze (March 30). One year in ten still freezes after April 14.

Last spring freezeMarch 301-in-10 after Apr 14

First fall freezeNovember 31-in-10 before Oct 22

Frost-free season≈ 221 daysmedian at 32°F

Hard freeze, 28°Mar 17 – Nov 14kills even hardy greens

USDA zone8a10 to 15°F winter low — not frost timing

The Charlotte year

Start seeds indoorsJan 19 – Feb 2

Transplant outdoorsMar 2 – Mar 16

Fall plantingSep 8 – Oct 6

indoors under lights
in the garden
frost-free season
1-in-10 years still freeze to Apr 14

Cabbage in Charlotte · freeze context from Charlotte Douglas AP, NC, 1991–2020 normals.

Every method, with its sources

Start seeds indoors

Jan 19 – Feb 2

Sow 4–6 weeks before the set-out window opens (UNH 4–6 weeks; Missouri G6570 6–8 weeks). Anchored to the median last spring freeze (Mar 30). University of New Hampshire Extension · University of Missouri Extension

Transplant outdoors

Mar 2 – Mar 16

UNH: set out 4 weeks before the last frost; Purdue's hardy class allows 4–6 weeks before. The later UNH point is used, with a 14-day span. Anchored to the median last spring freeze (Mar 30). University of New Hampshire Extension · Purdue University Extension

Fall planting

Sep 8 – Oct 6

Purdue Table 2: plant fall cabbage at least 4–8 weeks before the first fall frost. Anchored to the median first fall freeze (Nov 3). Purdue University Extension

Variety assumption: Assumes an average early-to-mid variety (about 65–80 days from transplant).

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

This week, not a typical year:

Crop rule sources (3)

University of New Hampshire Extension: Growing Vegetables: When to Plant Your Vegetable Garden [fact sheet] (accessed 2026-07-24)
Per-crop 'time from seed to transplant' and 'safe to set out in garden' relative to last frost.
University of Missouri Extension: Starting Plants Indoors from Seeds (G6570) (accessed 2026-07-24)
Weeks needed to grow vegetable transplants indoors (Table 2).
Purdue University Extension: Indiana Vegetable Planting Calendar (HO-186-W) (accessed 2026-07-24)
Hardiness classes: hardy = plant 4-6 wk before last spring frost; semi-hardy = 2-4 wk before; tender = after average last frost; very tender = at least 2 wk after. Table 2: fall planting at least 4-8 wk before first fall frost.

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