McMullen County, TX — Planting Guide
McMullen County is in USDA Zone 9a. The average last spring frost is February 20 and the first fall frost is December 1, giving you a growing season of approximately 285 days.
At an elevation of 3,741 ft, McMullen County receives approximately 58 in of rainfall annually. Summer highs average 103°F with winter lows around 45°F. The predominant soil type is Loam.
Based on 30 years of NOAA climate station data, the last frost date here varies by 61 days year to year — ranging from January 15 in warm years to March 17 in cold years. The growing season is trending longer by about 4.04 days per decade. McMullen County scores 38/100 (Challenging) on the Microclimate Index.
🌡️ Zone
9a (20°F to 25°F min)
❄️ Last Frost
February 20
🍂 First Frost
December 1
📅 Growing Season
285 days
⛰️ Elevation
3,741 ft
🌧️ Annual Rainfall
58 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.6 in | 3 days | — | None |
| Feb | 2 in | 5 days | 2.3 in | High |
| Mar | 3.7 in | 5 days | 0.6 in | Moderate |
| Apr | 6.4 in | 7 days | — | Low |
| May | 9.4 in | 8 days | — | Low |
| Jun | 9.8 in | 9 days | — | Low |
| Jul | 7.3 in | 6 days | — | Low |
| Aug | 6.5 in | 6 days | — | Low |
| Sep | 4.6 in | 6 days | — | Low |
| Oct | 3.5 in | 4 days | 0.8 in | Moderate |
| Nov | 1.7 in | 4 days | 2.6 in | High |
| Dec | 1.3 in | 4 days | — | None |
Annual total: 57.8 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
McMullen County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.2
Drainage
Well Drained
Frost Risk Probability
Based on 30 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | Mar 17 | Dec 19 | 277 days |
| Cautious | Mar 4 | Dec 9 | 280 days |
| Average year | Feb 20 | Dec 1 | 284 days |
| Optimistic | Feb 3 | Nov 24 | 294 days |
| Aggressive (risky) | Jan 15 | Nov 13 | 302 days |
Not very — frost dates can vary by ±61 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 4 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
McMullen County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in McMullen County
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to McMullen County's climate and soil.
County Extension Office
McMullen County Texas A&M AgriLife Extension Extension Office
Phone: 979-845-7800
Visit Extension Office Website →
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in McMullen County
Finding local nurseries & garden centers in McMullen County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to McMullen County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near McMullen County TX" or "garden center McMullen County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden McMullen County TX" or check your extension office and local parks department. Facebook groups like "McMullen County Gardeners" or "Texas Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
13.8 hours
Summer solstice daylight
Shortest Day
10.2 hours
Winter solstice daylight
Peak Sun Hours
10.1 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your shorter days favor short-day onion varieties like Vidalia, Texas 1015, and Red Creole. Plant in fall for best results.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 10.4 hr | 6 hr | Short day |
| February | 11 hr | 6.2 hr | Short day |
| March | 11.8 hr | 7.1 hr | Short day |
| April | 12.7 hr | 8 hr | Neutral |
| May | 13.4 hr | 8.4 hr | Neutral |
| June | 13.8 hr | 9 hr | Neutral |
| July | 13.6 hr | 10.1 hr | Neutral |
| August | 13 hr | 8.8 hr | Neutral |
| September | 12.2 hr | 8.7 hr | Neutral |
| October | 11.3 hr | 7.1 hr | Short day |
| November | 10.6 hr | 6.3 hr | Short day |
| December | 10.2 hr | 5.7 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through Oct.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
9 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 44°F | 48°F | 🐢 Slow | ~24 weeks |
| Feb | 45°F | 49°F | 🐢 Slow | ~24 weeks |
| Mar | 51°F | 52°F | ♻️ Active | ~14 weeks |
| Apr | 60°F | 58°F | ♻️ Active | ~14 weeks |
| May | 70°F | 65°F | 🔥 Peak | ~8 weeks |
| Jun | 79°F | 74°F | 🔥 Peak | ~8 weeks |
| Jul | 86°F | 79°F | 🔥 Peak | ~8 weeks |
| Aug | 86°F | 82°F | 🔥 Peak | ~8 weeks |
| Sep | 79°F | 81°F | 🔥 Peak | ~8 weeks |
| Oct | 70°F | 73°F | 🔥 Peak | ~8 weeks |
| Nov | 57°F | 64°F | ♻️ Active | ~14 weeks |
| Dec | 47°F | 55°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in McMullen County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
Disease Risk
High fungal/bacterial risk. Space plants for airflow, water at soil level.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| Whiteflies | High | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| Spider mites | High | May, Jun, Jul, Aug, Sep, Oct |
| Fire ants | Moderate | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| Thrips | Moderate | Apr, May, Jun, Jul, Aug |
| Leaf miners | Low | Mar, Apr, May, Jun |
Organic pest management tips
- Install physical barriers: floating row covers, copper tape for slugs, mesh netting
- Apply Bt (Bacillus thuringiensis) for caterpillar control — safe for beneficial insects
- Use kaolin clay spray to deter a wide range of insects on fruiting crops
- Release beneficial insects: ladybugs for aphids, parasitic wasps for caterpillars
- Apply neem oil weekly during high-pressure months
- Mulch heavily (3-4 inches) to reduce soil-borne disease splash
Cover Crops for McMullen County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Feb 24 | Sep 22 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Feb 20 | Oct 6 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Feb 28 | Oct 6 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Jan 24 | Sep 22 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | Mar 16 | Nov 10 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (4 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Sep 19 | Jan 30 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 27 | Feb 6 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Oct 4 | Feb 6 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Sep 10 | Feb 6 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 19 mph Summer: 12 mph
Fall: 14 mph Winter: 18 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
9.1/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Low
Relatively flat terrain (134 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
28,807 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
May, Jun, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Nov, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 57.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 28,807 gallons annually
- Rainwater harvesting is fully legal in your state
- Your area gets ample rainfall — even small barrels make a big difference
- Consider a rain garden to handle overflow during heavy rainfall months
Soil & Growing Conditions in McMullen County
Soil Type
Loam
Soil pH 6.8–7.2 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 5.5/10
Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.
Season Tips
285-day frost-free season
Your long season supports multiple successions and heat-demanding crops like melons, sweet potatoes, and peppers. Plant warm-season crops as soon as soil warms.
Free Garden Planner
Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.
Recommended for Your Garden
Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
🥬 Vegetables to Grow in McMullen County
115 vegetables that grow well in Zone 9a with planting dates for McMullen County.
Show all 115 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Jan 23 | Feb 20 | Feb 27 | May 22 – Jun 26 | 80–100 |
| Amaranth | Jan 9 | Feb 20 | Feb 27 | May 29 – Jul 17 | 90–120 |
| Artichoke | — | — | Mar 6 | Jul 10 – Sep 18 | 120–180 |
| Arugula | Jan 23 | Jan 30 | Feb 20 | Mar 27 – May 29 | 30–50 |
| Asparagus | — | — | Mar 6 | — | 730–1095 |
| Beets | — | Jan 30 | — | Mar 27 – Apr 24 | 50–70 |
| Belgian Endive | Jan 23 | Jan 30 | Feb 20 | Jun 12 – Aug 7 | 110–150 |
| Bitter Melon | Jan 9 | Feb 20 | Feb 27 | May 1 – Jun 12 | 60–90 |
| Black Beans | — | Feb 27 | — | May 29 – Jul 17 | 90–120 |
| Bok Choy | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 8 | 40–60 |
| Broccoli | Jan 23 | Jan 30 | Feb 20 | Apr 24 – Jun 5 | 60–90 |
| Broccoli Rabe | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 8 | 40–60 |
| Brussels Sprouts | Jan 23 | Jan 30 | Feb 20 | May 22 – Jul 17 | 90–130 |
| Butternut Squash | Jan 23 | Feb 20 | Feb 27 | May 29 – Jul 3 | 85–110 |
| Cabbage | Jan 23 | Jan 30 | Feb 20 | Apr 24 – Jun 19 | 60–100 |
| Calabash | Jan 9 | Feb 20 | Feb 27 | May 22 – Jul 17 | 80–120 |
| Cardoon | — | — | Mar 6 | Jul 10 – Aug 21 | 120–150 |
| Carrots | — | Jan 30 | — | Apr 3 – May 8 | 60–80 |
| Cauliflower | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 19 | 55–100 |
| Celeriac | Jan 23 | Jan 30 | Feb 20 | Jun 5 – Jul 10 | 100–120 |
| Celery | Jan 23 | Jan 30 | Feb 20 | May 15 – Jul 10 | 80–120 |
| Celtuce | Jan 23 | Jan 30 | Feb 20 | Apr 24 – Jun 5 | 60–90 |
| Chard | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 5 | 50–60 |
| Chayote | Jan 9 | Feb 20 | Feb 27 | Jul 3 – Sep 11 | 120–180 |
| Chickpeas | Jan 23 | Jan 30 | Feb 20 | May 15 – Jun 26 | 80–110 |
| Chicory | Jan 23 | Jan 30 | Feb 20 | Apr 24 – Jun 5 | 60–85 |
| Chinese Cabbage | Jan 23 | Jan 30 | Feb 20 | Apr 17 – May 15 | 50–70 |
| Christmas Lima Beans | Jan 9 | Feb 20 | Feb 27 | May 22 – Jun 26 | 80–100 |
| Collard Greens | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 19 | 55–75 |
| Corn | — | Feb 27 | — | May 1 – Jun 26 | 60–100 |
| Cowpeas | — | Feb 27 | — | May 1 – Jun 12 | 60–90 |
| Cress | Jan 23 | Jan 30 | Feb 20 | Mar 6 – Mar 27 | 14–21 |
| Crookneck Squash | Jan 23 | Feb 20 | Feb 27 | Apr 17 – May 15 | 45–60 |
| Crosne | — | Jan 30 | — | Jul 3 – Sep 4 | 150–200 |
| Cucumber | Jan 23 | Feb 20 | Feb 27 | Apr 24 – Jun 19 | 50–70 |
| Daikon | — | Jan 30 | — | Mar 27 – Apr 24 | 50–70 |
| Delicata Squash | Jan 23 | Feb 20 | Feb 27 | May 22 – Jun 26 | 80–100 |
| Edamame | — | Feb 27 | — | May 15 – Jun 26 | 75–100 |
| Eggplant | Jan 9 | Feb 20 | Feb 27 | May 8 – Jul 10 | 65–85 |
| Endive | Jan 23 | Jan 30 | Feb 20 | Apr 10 – May 15 | 45–65 |
| Escarole | Jan 23 | Jan 30 | Feb 20 | Apr 17 – May 15 | 50–70 |
| Fava Beans | Jan 23 | Jan 30 | Feb 20 | May 8 – Jun 19 | 75–100 |
| Fennel | Jan 9 | Feb 20 | Feb 27 | May 1 – Jun 12 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Ginger | Jan 9 | Feb 20 | Feb 27 | Oct 30 – Dec 25 | 240–300 |
| Green Beans | — | Feb 27 | — | Apr 24 – Jun 19 | 50–65 |
| Horseradish | — | — | Mar 6 | Jul 10 – Sep 18 | 120–180 |
| Hot Peppers | Jan 9 | Feb 20 | Feb 27 | May 8 – Aug 14 | 70–120 |
| Hubbard Squash | Jan 23 | Feb 20 | Feb 27 | Jun 12 – Jul 17 | 100–120 |
| Jicama | Jan 9 | Feb 20 | Feb 27 | Jul 3 – Sep 11 | 120–180 |
| Kabocha | Jan 23 | Feb 20 | Feb 27 | May 29 – Jun 26 | 85–100 |
| Kai Lan | Jan 23 | Jan 30 | Feb 20 | Apr 10 – May 8 | 45–60 |
| Kale | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 12 | 50–70 |
| Kidney Beans | — | Feb 27 | — | May 29 – Jul 3 | 85–110 |
| Kohlrabi | Jan 23 | Jan 30 | Feb 20 | Apr 10 – May 15 | 45–65 |
| Komatsuna | Jan 23 | Jan 30 | Feb 20 | Mar 27 – May 1 | 35–50 |
| Leeks | Jan 23 | Jan 30 | Feb 20 | May 22 – Aug 7 | 90–150 |
| Lentils | Jan 23 | Jan 30 | Feb 20 | May 15 – Jun 26 | 80–110 |
| Lettuce | Jan 23 | Jan 30 | Feb 20 | Mar 27 – Jun 5 | 30–60 |
| Lima Beans | — | Feb 27 | — | May 1 – Jun 12 | 60–90 |
| Loofah | Jan 9 | Feb 20 | Feb 27 | Jun 12 – Aug 14 | 100–150 |
| Luffa | Jan 9 | Feb 20 | Feb 27 | May 29 – Aug 14 | 90–150 |
| Mache | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 8 | 40–60 |
| Malabar Spinach | Jan 9 | Feb 20 | Feb 27 | Apr 24 – May 22 | 55–70 |
| Melon | Jan 23 | Feb 20 | Feb 27 | May 8 – Jun 26 | 70–100 |
| Microgreens | Jan 23 | Jan 30 | Feb 20 | Feb 27 – Mar 27 | 7–21 |
| Mitsuba | Jan 23 | Jan 30 | Feb 13 | Apr 10 – Jun 5 | 50–70 |
| Mizuna | Jan 23 | Jan 30 | Feb 20 | Mar 27 – Apr 24 | 30–45 |
| Mustard Greens | Jan 23 | Jan 30 | Feb 20 | Mar 27 – May 29 | 30–50 |
| Napa Cabbage | Jan 23 | Jan 30 | Feb 20 | Apr 17 – May 22 | 55–75 |
| New Zealand Spinach | Jan 9 | Feb 20 | Feb 27 | Apr 24 – May 22 | 55–70 |
| Okra | Jan 9 | Feb 20 | Feb 27 | Apr 24 – Jun 19 | 50–65 |
| Onion | Jan 23 | Jan 30 | Feb 20 | May 22 – Jul 10 | 90–120 |
| Pac Choi | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 1 | 40–55 |
| Parsnip | — | Jan 30 | — | May 15 – Jun 26 | 100–130 |
| Patty Pan Squash | Jan 23 | Feb 20 | Feb 27 | Apr 17 – May 15 | 45–60 |
| Peas | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 12 | 55–70 |
| Peppers | Jan 9 | Feb 20 | Feb 27 | May 1 – Jul 10 | 60–90 |
| Pole Beans | Jan 9 | Feb 20 | Feb 27 | Apr 24 – Jun 19 | 55–70 |
| Potatoes | Jan 9 | Feb 20 | Feb 27 | May 8 – Jul 17 | 70–120 |
| Pumpkin | Jan 23 | Feb 20 | Feb 27 | May 29 – Jul 17 | 85–120 |
| Purslane | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 8 | 40–60 |
| Radicchio | Jan 23 | Jan 30 | Feb 20 | Apr 24 – May 29 | 60–80 |
| Radish | — | Jan 30 | — | Feb 27 – Mar 20 | 22–35 |
| Romanesco | Jan 23 | Jan 30 | Feb 20 | May 8 – Jun 19 | 75–100 |
| Rutabaga | — | Jan 30 | — | Apr 24 – May 29 | 80–100 |
| Salsify | — | Jan 30 | — | May 15 – Jun 26 | 100–130 |
| Savoy Cabbage | Jan 23 | Jan 30 | Feb 20 | May 1 – Jun 26 | 70–110 |
| Scallions | Jan 23 | Jan 30 | Feb 20 | Apr 17 – May 15 | 50–70 |
| Scarlet Runner Beans | Jan 9 | Feb 20 | Feb 27 | May 1 – Jun 5 | 60–80 |
| Shallot | Jan 23 | Jan 30 | Feb 20 | May 22 – Jul 10 | 90–120 |
| Shiso | Jan 9 | Feb 27 | Feb 27 | Apr 24 – Jun 19 | 50–70 |
| Snap Peas | Jan 9 | Feb 20 | Feb 27 | Apr 24 – Jun 19 | 55–70 |
| Snow Peas | Jan 23 | Jan 30 | Feb 20 | Apr 17 – Jun 12 | 50–65 |
| Soybeans | — | Feb 27 | — | May 22 – Jul 17 | 80–120 |
| Spaghetti Squash | Jan 23 | Feb 20 | Feb 27 | May 29 – Jun 26 | 85–100 |
| Spinach | Jan 23 | Jan 30 | Feb 20 | Mar 27 – May 29 | 35–50 |
| Squash (Summer) | Jan 23 | Feb 20 | Feb 27 | Apr 17 – Jun 19 | 45–65 |
| Squash (Winter) | Jan 23 | Feb 20 | Feb 27 | May 22 – Jul 17 | 80–120 |
| Sunchoke | — | — | Mar 6 | Jun 26 – Aug 21 | 110–150 |
| Sunflower | Jan 9 | Feb 20 | Feb 27 | May 8 – Jun 26 | 70–100 |
| Sweet Corn | — | Feb 27 | — | May 1 – Jun 12 | 60–90 |
| Sweet Potatoes | Jan 9 | Feb 20 | Feb 27 | May 29 – Jul 17 | 90–120 |
| Tatsoi | Jan 23 | Jan 30 | Feb 20 | Mar 27 – May 1 | 35–50 |
| Tomatillo | Jan 9 | Feb 20 | Feb 27 | May 1 – Jul 10 | 60–85 |
| Tomatoes | Jan 9 | Feb 20 | Feb 27 | May 1 – Jul 10 | 60–85 |
| Turmeric | Jan 9 | Feb 20 | Feb 27 | Oct 30 – Dec 25 | 240–300 |
| Turnip | — | Jan 30 | — | Mar 13 – Apr 17 | 40–60 |
| Watercress | Jan 23 | Jan 30 | Feb 20 | Apr 3 – May 8 | 40–60 |
| Watermelon | Jan 23 | Feb 20 | Feb 27 | May 8 – Jun 26 | 70–100 |
| Wax Beans | — | Feb 27 | — | Apr 24 – Jun 19 | 50–65 |
| Winter Melon | Jan 9 | Feb 20 | Feb 27 | May 29 – Jul 17 | 90–120 |
| Yam | Jan 9 | Feb 20 | Feb 27 | Aug 28 – Dec 25 | 180–330 |
| Yard Long Beans | Jan 9 | Feb 20 | Feb 27 | Apr 24 – Jun 5 | 55–80 |
| Zucchini | Jan 23 | Feb 20 | Feb 27 | Apr 17 – Jun 12 | 45–60 |
🍓 Fruits to Grow in McMullen County
24 fruits that grow well in Zone 9a with planting dates for McMullen County.
Show all 24 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Mar 6 | Jun 5 – Sep 18 | 90–180 |
| Blackberries | — | — | Mar 6 | — | 365–730 |
| Boysenberries | — | — | Mar 6 | — | 365–730 |
| Cantaloupe | — | — | Mar 6 | May 15 – Jun 19 | 70–90 |
| Che Fruit | — | — | Mar 6 | — | 1095–1825 |
| Dragon Fruit | — | — | Mar 6 | — | 365–730 |
| Elderberries | — | — | Mar 6 | — | 730–1095 |
| Figs | — | — | Mar 6 | — | 730–1825 |
| Goji Berries | — | — | Mar 6 | — | 730–1095 |
| Grapes | — | — | Mar 6 | — | 730–1095 |
| Ground Cherry | — | — | Mar 6 | May 15 – Jul 10 | 65–80 |
| Guava | — | — | Mar 6 | — | 365–730 |
| Honeydew | — | — | Mar 6 | May 29 – Jul 10 | 80–110 |
| Kiwi | — | — | Mar 6 | — | 1095–1825 |
| Loquat | — | — | Mar 6 | — | 730–1825 |
| Mulberries | — | — | Mar 6 | — | 730–1825 |
| Passion Fruit | — | — | Mar 6 | — | 365–545 |
| Pawpaw | — | — | Mar 6 | — | 1095–2555 |
| Persimmon | — | — | Mar 6 | — | 1095–2555 |
| Pomegranate | — | — | Mar 6 | — | 730–1095 |
| Quince | — | — | Mar 6 | — | 1095–1825 |
| Raspberries | — | — | Mar 6 | — | 365–730 |
| Serviceberries | — | — | Mar 6 | — | 730–1095 |
| Strawberries | — | — | Mar 6 | Jun 5 – Jan 1 | 90–365 |
🌿 Herbs to Grow in McMullen County
40 herbs that grow well in Zone 9a with planting dates for McMullen County.
Show all 40 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Anise | Jan 23 | Jan 30 | Feb 13 | May 15 – Jul 31 | 90–120 |
| Basil | Jan 9 | Feb 27 | Feb 27 | Apr 24 – Jun 26 | 50–75 |
| Bee Balm | — | — | Feb 27 | May 29 – Aug 14 | 90–120 |
| Borage | Jan 23 | Jan 30 | Feb 13 | Apr 10 – May 29 | 50–60 |
| Caraway | Jan 23 | Jan 30 | Feb 13 | — | 365–450 |
| Catnip | — | — | Feb 27 | May 1 – Jul 3 | 60–80 |
| Chamomile | Jan 23 | Jan 30 | Feb 13 | Apr 17 – Jun 26 | 60–90 |
| Chervil | Jan 23 | Jan 30 | Feb 13 | Mar 27 – May 29 | 40–60 |
| Chives | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Cilantro | Jan 23 | Jan 30 | Feb 13 | Mar 27 – May 29 | 40–60 |
| Comfrey | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Cumin | Jan 23 | Jan 30 | Feb 13 | May 29 – Jul 31 | 100–120 |
| Dill | Jan 23 | Jan 30 | Feb 13 | Mar 27 – May 29 | 40–60 |
| Echinacea | — | — | Feb 27 | Jul 3 – Oct 9 | 120–180 |
| Epazote | Jan 9 | Feb 27 | Feb 27 | Apr 17 – Jun 12 | 45–60 |
| Fennel (herb) | Jan 23 | Jan 30 | Feb 13 | Apr 17 – Jun 26 | 60–90 |
| Feverfew | — | — | Feb 27 | May 29 – Aug 14 | 90–120 |
| Garlic Chives | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Horehound | — | — | Feb 27 | May 15 – Jul 10 | 75–90 |
| Hyssop | — | — | Feb 27 | May 8 – Jul 10 | 70–90 |
| Lavender | — | — | Feb 27 | May 29 – Oct 30 | 90–200 |
| Lemon Balm | — | — | Feb 27 | May 1 – Jun 19 | 60–70 |
| Lemon Thyme | — | — | Feb 27 | May 8 – Jul 10 | 70–90 |
| Lemon Verbena | Jan 9 | Feb 27 | Feb 27 | May 1 – Jul 10 | 60–90 |
| Lemongrass | Jan 9 | Feb 27 | Feb 27 | May 15 – Aug 14 | 75–120 |
| Marjoram | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Mint | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Oregano | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Parsley | Jan 23 | Jan 30 | Feb 13 | Apr 17 – Jun 19 | 60–80 |
| Rosemary | — | — | Feb 27 | May 22 – Oct 9 | 80–180 |
| Rue | — | — | Feb 27 | May 8 – Jul 10 | 70–90 |
| Sage | — | — | Feb 27 | May 15 – Jul 10 | 75–90 |
| Savory | — | — | Feb 27 | Apr 24 – Jun 19 | 50–70 |
| Sorrel | Jan 23 | Jan 30 | Feb 13 | Mar 27 – May 29 | 40–60 |
| Stevia | Jan 9 | Feb 27 | Feb 27 | May 1 – Jul 10 | 60–90 |
| Tarragon | — | — | Feb 27 | May 1 – Jul 10 | 60–90 |
| Thai Basil | Jan 9 | Feb 27 | Feb 27 | Apr 24 – Jun 26 | 50–75 |
| Thyme | — | — | Feb 27 | May 8 – Jul 10 | 70–90 |
| Valerian | — | — | Feb 27 | Jul 3 – Oct 9 | 120–180 |
| Yarrow | — | — | Feb 27 | May 29 – Aug 14 | 90–120 |
Monthly Planting Guide for McMullen County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in McMullen County.
Frequently Asked Questions
What planting zone is McMullen County, TX?
McMullen County is in USDA Hardiness Zone 9a. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in McMullen County, TX?
Based on 30 years of NOAA weather station data, the median last spring frost in McMullen County falls around February 20. In 8 out of 10 years, last frost lands between January 15 and March 17 — a 61-day window of variability. Use March 17 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in McMullen County, TX?
The median first fall frost in McMullen County arrives around December 1. In cold years it can arrive as early as November 13; in mild years as late as December 19. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in McMullen County?
McMullen County has a frost-free growing season of approximately 285 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending longer by about 4.04 days per decade.
What is the soil like in McMullen County for gardening?
McMullen County has predominantly Loam soil with a pH range of 6.8–7.2 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in McMullen County?
McMullen County has commercial agriculture that includes Cotton, Cattle, Sorghum, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is McMullen County a good location for home gardening?
McMullen County scores 38/100 (Challenging) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Gardening here benefits from close attention to frost timing and season extension due to the challenging microclimate factors.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help McMullen County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.
