When to plant chives in Austin, Texas

March 10 – March 24

Transplant outdoors · typical Austin year

Climate basis: NOAA station Austin 6s, TX (USC00410431), 3 mi (5 km) from downtown Austin (ZCTA 78701 centroid), elevation 570 ft, on the 1991–2020 climate normals. Transplant chives outdoors from approximately the dates above, anchored to the median last spring 32°F freeze (March 10). One year in ten still freezes after March 31.

Last spring freezeMarch 101-in-10 after Mar 31
First fall freezeNovember 171-in-10 before Nov 1
Frost-free season252 daysmedian at 32°F
Hard freeze, 28°Feb 28Dec 1kills even hardy greens
USDA zone9a20 to 25°F winter low not frost timing

The Austin year

Start seeds indoorsJan 13 – Jan 27
Transplant outdoorsMar 10 – Mar 24
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to Mar 31
Chives in Austin · freeze context from Austin 6s, TX, 1991–2020 normals.

Every method, with its sources

Start seeds indoors

Jan 13 – Jan 27

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 (Mar 10). University of Minnesota Extension · University of Wisconsin-Madison Division of Extension, Wisconsin Horticulture · Utah State University Extension

Transplant outdoors

Mar 10 – Mar 24

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 (Mar 10). 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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