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Planting calendar / San Marcos, TX

Planting calendar for San Marcos, TX

Station SAN MARCOS, TX US (USC00417983) is 1 miles away. Median last 32°F 02/28, median first 32°F 11/29. Crop dates below come from Texas A&M AgriLife Extension. Where the guide uses weeks around a frost date, those weeks are applied to the median 32°F dates because the guide does not name a 10/50/90 level.

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Crops in the cited guide

SowTomatoesSpringMarch 6 – April 24As printed1 to 8 weeks afterFallAugust 23 – September 6As printed12 to 14 weeks before70-90 days to harvestSowPeppersSpringMarch 6 – April 24As printed1 to 8 weeks afterFallAugust 9 – September 6As printed12 to 16 weeks before60-90 days to harvestSowEggplantSpringMarch 13 – April 10As printed2 to 6 weeks afterFallAugust 9 – September 6As printed12 to 16 weeks before80-90 days to harvestSowCucumberSpringMarch 6 – April 10As printed1 to 6 weeks afterFallSeptember 6 – September 20As printed10 to 12 weeks before50-70 days to harvestSowSummer squashSpringMarch 6 – March 27As printed1 to 4 weeks afterFallAugust 16 – September 6As printed12 to 15 weeks before50-60 days to harvestSowWinter squashSpringMarch 6 – March 27As printed1 to 4 weeks afterFallAugust 23 – September 6As printed12 to 14 weeks before85-100 days to harvestSowSnap beans, bushSpringMarch 6 – March 27As printed1 to 4 weeks afterFallSeptember 20 – October 4As printed8 to 10 weeks before45-60 days to harvestSowSnap beans, poleSpringMarch 6 – March 27As printed1 to 4 weeks afterFallAugust 9 – August 23As printed14 to 16 weeks before60-70 days to harvestSowSweet cornSpringMarch 6 – April 10As printed1 to 6 weeks afterFallAugust 23 – September 6As printed12 to 14 weeks before70-90 days to harvestSowLettuceSpringJanuary 17 – March 13As printed6 weeks before or 2 weeks afterFallAugust 23 – September 20As printed10 to 14 weeks before40-80 days to harvestSowSpinachSpringJanuary 3 – February 21As printed1 to 8 weeks beforeFallAugust 9 – November 15As printed2 to 16 weeks before40-60 days to harvestSowCollards and kaleSpringJanuary 17 – February 14As printed2 to 6 weeks beforeFallSeptember 6 – October 4As printed8 to 12 weeks before50-80 days to harvestSowBroccoliSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallAugust 9 – September 20As printed10 to 16 weeks before60-80 days to harvestSowCabbageSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallAugust 9 – September 20As printed10 to 16 weeks before60-90 days to harvestSowCarrotsSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallAugust 23 – September 6As printed12 to 14 weeks before70-80 days to harvestSowRadishesSpringJanuary 17 – March 27As printed6 weeks before / 4 weeks afterFallOctober 4 – November 22As printed1 to 8 weeks before25-40 days to harvestSowBeetsSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallSeptember 20 – October 4As printed8 to 10 weeks before50-60 days to harvestSowEnglish peasSpringJanuary 3 – February 14As printed2 to 8 weeks beforeFallSeptember 6 – November 15As printed2 to 12 weeks before55-90 days to harvestSowSouthern peasSpringMarch 13 – May 8As printed2 to 10 weeks afterFallSeptember 6 – September 20As printed10 to 12 weeks before60-70 days to harvestSowOnions, from plantsSpringDecember 20 – January 31As printed4 to 10 weeks before80-120 days to harvestSowGarlicFallOctober 18 – November 1As printed4 to 6 weeks before140-150 days to harvestSowIrish potatoesSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallAugust 9 – August 23As printed14 to 16 weeks before75-100 days to harvestSowSweet potatoesSpringMarch 13 – April 24As printed2 to 8 weeks after100-130 days to harvestSowOkraSpringMarch 13 – April 10As printed2 to 6 weeks afterFallAugust 9 – September 6As printed12 to 16 weeks before55-65 days to harvestSowWatermelonSpringMarch 6 – April 10As printed1 to 6 weeks afterFallAugust 9 – August 23As printed14 to 16 weeks before80-100 days to harvestSowCollardsSpringJanuary 17 – February 14As printed2 to 6 weeks beforeFallSeptember 6 – October 4As printed8 to 12 weeks before50-80 days to harvestSowSwiss chardSpringJanuary 17 – February 14As printed2 to 6 weeks beforeFallAugust 23 – September 6As printed12 to 14 weeks before45-55 days to harvestSowTurnipsSpringJanuary 17 – February 14As printed2 to 6 weeks beforeFallSeptember 6 – November 15As printed2 to 12 weeks before30-60 days to harvestSowPumpkinSpringMarch 6 – March 27As printed1 to 4 weeks afterFallAugust 23 – September 6As printed12 to 14 weeks before75-100 days to harvestSowBrussels sproutsSpringJanuary 17 – January 31As printed4 to 6 weeks beforeFallAugust 23 – September 20As printed10 to 14 weeks before90-100 days to harvestSowCauliflowerFallAugust 9 – September 20As printed10 to 16 weeks before70-90 days to harvestSowMustardSpringMarch 6 – April 10As printed1 to 6 weeks afterFallAugust 9 – September 20As printed10 to 16 weeks before30-40 days to harvest

San Marcos, TX

Zone 9aAverage annual extreme minimum 20°F to 25°F

Median last 32°F is February 28. Median first 32°F is November 29. The 50% growing-season length is 273 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Texas. Nearest qualified station: SAN MARCOS, TX US (USC00417983), 1 miles. Median last 32°F February 28. Median first 32°F November 29. The 50% growing-season length is 273 days.

Open the ZIP page · Crop guides for Texas

32°F probabilities at this station
10%50%90%
Last 32°F on or afterMarch 21February 28February 1
First 32°F on or beforeNovember 8November 29December 21

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from Texas A&M AgriLife Extension, Texas Home Vegetable Gardening Guide, retrieved 2026-10-10. Table 8 is statewide and is written as weeks before or after the frost-free date (spring) and the first freeze date (fall). It is not a single calendar date for every Texas city.

Date checks use your device’s calendar and appear after the page loads.

State crop pages: Tomatoes · Peppers · Eggplant · Cucumber · Summer squash · Winter squash · Snap beans, bush · Snap beans, pole