When to plant chives in Kansas City, Missouri

April 4 – April 18

Transplant outdoors · typical Kansas City year

Climate basis: NOAA station Kansas City Downtown AP, MO (USW00013988), 2 mi (3 km) from downtown Kansas City (ZCTA 64106 centroid), elevation 742 ft, on the 1991–2020 climate normals. Transplant chives outdoors from approximately the dates above, anchored to the median last spring 32°F freeze (April 4). One year in ten still freezes after April 20.

Last spring freezeApril 41-in-10 after Apr 20
First fall freezeNovember 21-in-10 before Oct 21
Frost-free season211 daysmedian at 32°F
Hard freeze, 28°Mar 26Nov 11kills even hardy greens
USDA zone6b-5 to 0°F winter low not frost timing

The Kansas City year

Start seeds indoorsFeb 7 – Feb 21
Transplant outdoorsApr 4 – Apr 18
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to Apr 20
Chives in Kansas City · freeze context from Kansas City Downtown AP, MO, 1991–2020 normals.

Every method, with its sources

Start seeds indoors

Feb 7 – Feb 21

Wisconsin Horticulture starts chive seed indoors before the last frost date for planting out after frost danger, but says only 'a few weeks'; USU Extension fixes the lead time at 6 to 8 weeks of growth before garden planting, so sowing runs 8 to 6 weeks before the last spring freeze. Anchored to the median last spring freeze (Apr 4). University of Minnesota Extension · University of Wisconsin-Madison Division of Extension, Wisconsin Horticulture · Utah State University Extension

Transplant outdoors

Apr 4 – Apr 18

UMN Extension says the easiest and most successful way to grow chives is planting rooted clumps in spring after frost danger has passed, and Wisconsin Horticulture likewise puts indoor-started plants out after the danger of frost is past; both agree, so the window opens at the last spring freeze. Anchored to the median last spring freeze (Apr 4). University of Minnesota Extension · University of Wisconsin-Madison Division of Extension, Wisconsin Horticulture · Utah State University Extension

Variety assumption: Wisconsin Horticulture warns that direct-seeded chives give little or no harvest the first year, so rooted clumps or indoor-started transplants are the practical route.

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)

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