Texas · zones 7a–10a
When to plant carrots in Texas.
Sow between Feb 2 to Mar 7 in a typical year, keyed to Texas's median last frost around Mar 12. A second, fall sowing fits Aug 27 to Sep 22. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Carrots dates for a typical Texas season.
Direct sow
Feb 2 to Mar 7
Keyed to the ~Mar 12 last frost. Sow 0.25" deep, 2" apart.
Fall round
Aug 27 to Sep 22
Counted back from the ~Nov 22 first frost.
Harvest
~68 days later
~0.2 lb per plant over ~2 weeks.
Texas spans more than one climate: Zone 8 is the most common zone, but the state runs 7a to 10a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
Texas growing notes
Texas carrots are a fall crop wearing a spring costume.
Spring works, but fall is the secret season
Texas seed racks push carrots in spring, and a spring sowing does work across most of the state. But spring carrots are racing a clock: the crop needs 60-plus days of mild weather to size up, and Texas swings from cool to 95-degree afternoons faster than almost anywhere else carrots are grown. A carrot that is still fattening when that heat arrives turns woody and bitter fast.
Fall sowing dodges the problem entirely. Carrots planted to mature through Texas's mild autumn and winter grow in steadily cooling soil instead of a heat spike, and in most of the state the ground never freezes hard enough to stop harvest. With 9 realistic sowing rounds fitting the season here, fall and winter carry more of the carrot calendar in Texas than spring ever will. Sow seed only a quarter-inch deep even in fall; a deeper sowing into ground still holding late-summer heat struggles to push through before it dries out.
Blackland clay decides your root shape
Much of central Texas sits on Blackland Prairie clay, heavy black ground that swells when wet and cracks like pavement when dry. Carrots grown straight in it fork, twist, and stay stubby no matter how well you water them. The fix is not fighting the clay but building above it: a raised bed or mounded row 8 inches deep of loosened soil and compost gives roots the straight run they need.
If building a full raised bed is not practical, switch strategy instead of soil: a half-length Chantenay or Danvers-type carrot, bred to push through denser ground, will still size up respectably in unamended clay where a long, thin Imperator type simply cannot force its way down. Either way, thin seedlings to 2 inches apart once tops reach finger height; crowded roots in heavy Texas clay twist around each other worse than they do in loose ground.
Leafhoppers and parsleyworm, the two to watch
Carrot rust fly is not a pest Texas growers need to spend row cover budget guarding against; no Texas extension list names it among the state's carrot threats. What actually shows up here is armyworms and leafhoppers moving through the ferny tops in warm stretches, plus flea beetles riddling young leaves with tiny holes soon after they emerge. Floating row cover laid the day you sow and left on through most of the growing period blocks all three without a single spray. Aphids show up in the same cool fall stretch, clustering on the ferny tops; a hard spray of water knocks most of a light infestation off without touching the roots underneath.
Parsleyworm, the green-and-black caterpillar that turns into the eastern black swallowtail butterfly, is common enough in Texas gardens that many gardeners choose to share: it rarely does serious damage to an established row, and a few missing leaves is a fair trade for a butterfly in the garden. If a planting is young and small, though, hand-picking the caterpillars onto a spare parsley plant protects the carrots without pesticide.
In Texas: watch for
The pests that find carrots here.
With about 255 frost-free days, carrot spends longer in the ground here than in most of the country, which widens the window in which carrot rust fly can find it. Scout weekly from midseason and act on the first signs.
Rusty tunnels in the roots and stunted tops.
Organic fix: Cover the row; rotate away from last year's carrots.
Big green-and-black striped caterpillars on the foliage.
Organic fix: Handpick (or leave for swallowtails); Bt if heavy.
Brown spots ringed in yellow on the oldest leaves first, darkening until the tops look scorched.
Organic fix: Water at the base rather than overhead, turn under old carrot tops, and leave 2 years between carrot crops.
Your season math: Texas gives carrots about 255 frost-free days, and it needs roughly 68 days to a first harvest. That fits about 9 re-sown rounds across the season, so you can keep it coming instead of picking once.
Planting carrots in Texas: questions
When should I plant carrots in Texas?+
In a typical Texas year, sow carrots between Feb 2 to Mar 7, keyed to the state's median last frost around Mar 12. There's also a fall window: Aug 27 to Sep 22. Your exact dates shift with your ZIP code and microclimate.
What USDA zone is Texas?+
Texas spans zones 7a–10a, mostly zone 8. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many carrots plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.