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Zone 8B — August

What to Plant in August in Zone 8B

August in Zone 8B: 0 crops to start indoors, 1 to plant or direct sow outside, and 4 entering harvest window. Last frost averages March 20. Reference city: Houston, TX.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
0 Start Indoors
1 Plant Outside
4 Harvest
Frost risk: Cleared

Frost season has cleared in Zone 8B. The last spring frost typically passed by March 20, and the very latest 10% chance closed by April 8. Tender crops are safe to plant out.

See full Zone 8B frost outlook →

Start Indoors in August

Nothing to start seeds indoors in August for Zone 8B.
Next window: September — 1 variety, including Garlic.

Plant Outside in August

Plant Type Action Target Date Harvest Window
Nantes Carrot (fall planting) root vegetable Direct Sow Aug 21 Nov 4

Harvest in August

Plant Type Planted / Sown Harvest Window
Roselle calyces and leaves vegetable Mar 27 Aug 24 – Sep 23
Chayote squash vegetable Apr 3 Aug 1 – Aug 31
Jicama Mexican Yam Bean legume Apr 3 Aug 21 – Sep 10
Tepin Hot Peppers pepper Apr 3 Aug 1 – Oct 20

Key Tasks for August in Zone 8B

  1. 1 Direct sow seeds at the recommended depth and spacing. Keep the seedbed consistently moist until germination is complete.
  2. 2 Apply 2–3 inches of mulch around heat-sensitive crops to retain moisture and keep root zones cooler. Water deeply and less frequently rather than shallow daily watering.
  3. 3 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 8B planting calendar
July August in Zone 8B September

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