When to plant lima bean in Austin, Texas

March 10 – March 24

Direct-sow 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. Direct-sow lima bean 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

Direct-sow outdoorsMar 10 – Mar 24
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to Mar 31
Lima Bean in Austin · freeze context from Austin 6s, TX, 1991–2020 normals.

Every method, with its sources

Direct-sow outdoors

Mar 10 – Mar 24

Illinois Extension's Hort Answers entry for Phaseolus vulgaris and P. lunatus says beans should be planted after all danger of frost is past, and Utah State's legume planting guide places the warm-season legumes — which it lists as snap or dry beans and lima bean — around the frost-free date; both point to the last-frost date itself, so the point rule opens the window at the anchor and runs the standard 14 days. Illinois' allowance for planting a week to 10 days early in warm soil was rejected as the earlier-starting, less frost-conservative reading. Anchored to the median last spring freeze (Mar 10). Utah State University Extension

Start seeds indoors

Not calculated

The cited extension guides do not time an indoor seed-starting window for this crop.

Transplant outdoors

Not calculated

The cited extension guides do not time an outdoor transplanting window for this crop.

Fall planting

Not calculated

No source-backed fall planting rule exists for this crop in the registry, so no fall window is calculated.

Variety assumption: Assumes bush or pole lima sown directly in place; Maryland Extension notes limas need soil at 65°F for five days to germinate well, so gardeners in a cold spring should plant toward the later end of the window rather than at its opening.

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 (1)

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