Carson County, TX — Planting Guide
Carson County is in USDA Zone 7a. The average last spring frost is April 14 and the first fall frost is October 25, giving you a growing season of approximately 194 days.
At an elevation of 2,585 ft, Carson County receives approximately 45.2 in of rainfall annually. Summer highs average 99°F with winter lows around 29°F. The predominant soil type is Sandy Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 34 days year to year — ranging from March 28 in warm years to May 1 in cold years. The growing season is trending longer by about 1.71 days per decade. Carson County scores 49/100 (Moderate) on the Microclimate Index.
🌡️ Zone
7a (0°F to 5°F min)
❄️ Last Frost
April 14
🍂 First Frost
October 25
📅 Growing Season
194 days
⛰️ Elevation
2,585 ft
🌧️ Annual Rainfall
45.2 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 | 3.5 in | 3 days | — | None |
| Feb | 2.5 in | 3 days | — | None |
| Mar | 2.3 in | 1 days | 2 in | High |
| Apr | 1.3 in | 1 days | 3 in | High |
| May | 1.1 in | 1 days | 3.2 in | Critical |
| Jun | 1.4 in | 1 days | 2.9 in | High |
| Jul | 7.6 in | 6 days | — | Low |
| Aug | 9 in | 9 days | — | Low |
| Sep | 6.6 in | 5 days | — | Low |
| Oct | 4.1 in | 2 days | 0.2 in | Low |
| Nov | 2.6 in | 2 days | — | None |
| Dec | 3 in | 3 days | — | None |
Annual total: 45 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.
Carson County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.9-8.8
Drainage
Well Drained
Frost Risk Probability
Based on 31 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) | May 1 | Nov 7 | 190 days |
| Cautious | Apr 18 | Oct 31 | 196 days |
| Average year | Apr 14 | Oct 25 | 194 days |
| Optimistic | Apr 8 | Oct 18 | 193 days |
| Aggressive (risky) | Mar 28 | Oct 9 | 195 days |
Not very — frost dates can vary by ±34 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 1.7 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Carson County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Carson 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 Carson County's climate and soil.
County Extension Office
Carson 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 Carson County
Finding local nurseries & garden centers in Carson County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Carson 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 Carson County TX" or "garden center Carson 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 Carson County TX" or check your extension office and local parks department. Facebook groups like "Carson 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
14.4 hours
Summer solstice daylight
Shortest Day
9.6 hours
Winter solstice daylight
Peak Sun Hours
9.8 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: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.9 hr | 5.7 hr | Short day |
| February | 10.7 hr | 6.5 hr | Short day |
| March | 11.7 hr | 7 hr | Short day |
| April | 12.9 hr | 8 hr | Neutral |
| May | 13.9 hr | 8.3 hr | Neutral |
| June | 14.4 hr | 9.4 hr | Long day |
| July | 14.2 hr | 9.8 hr | Long day |
| August | 13.3 hr | 9.6 hr | Neutral |
| September | 12.2 hr | 8.5 hr | Neutral |
| October | 11.1 hr | 7.3 hr | Short day |
| November | 10.1 hr | 5.6 hr | Short day |
| December | 9.6 hr | 5.2 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
Jun
Microbial activity peaks when soil is warm.
Active Composting
8 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 35°F | 41°F | ❄️ Dormant | ~36 weeks |
| Feb | 33°F | 39°F | ❄️ Dormant | ~36 weeks |
| Mar | 39°F | 42°F | ❄️ Dormant | ~36 weeks |
| Apr | 50°F | 52°F | ♻️ Active | ~14 weeks |
| May | 64°F | 60°F | ♻️ Active | ~14 weeks |
| Jun | 71°F | 68°F | 🔥 Peak | ~8 weeks |
| Jul | 80°F | 74°F | 🔥 Peak | ~8 weeks |
| Aug | 81°F | 79°F | 🔥 Peak | ~8 weeks |
| Sep | 76°F | 76°F | 🔥 Peak | ~8 weeks |
| Oct | 64°F | 66°F | ♻️ Active | ~14 weeks |
| Nov | 51°F | 56°F | ♻️ Active | ~14 weeks |
| Dec | 38°F | 46°F | ❄️ Dormant | ~36 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Carson County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
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 | Moderate | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | May, Jun, Jul |
| Stink bugs | Moderate | May, Jun, Jul, Aug, Sep |
| Whiteflies | Low | Jun, Jul, Aug, Sep |
| Spider mites | Moderate | Jul, Aug |
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 Carson 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 | Apr 20 | Aug 16 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 22 | Aug 23 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 14 | Aug 23 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 18 | Aug 30 | ✓ 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 | Apr 25 | Sep 27 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 21 | Mar 24 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 2 | Mar 24 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 30 | Mar 24 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 6 | Mar 24 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 20 | Mar 24 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 3 | Mar 31 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 22 | Mar 31 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 18 mph Summer: 13 mph
Fall: 13 mph Winter: 15 mph
Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.
Windbreak Benefit
8.6/10
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 (140 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
22,428 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 1,750 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jul, Aug, Sep, Oct
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Apr, May, Jun
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 45.0 inches of rain per year
- A 1,000 sq ft roof can collect roughly 22,428 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Apr, May, Jun)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Carson County
Soil Type
Sandy Loam
Soil pH 7.9–8.8 · Excessively Drained drainage
Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.
Watering Needs
Drought stress: 7.5/10
High drought stress. Consistent irrigation is essential — consider drip systems, heavy mulch, and drought-tolerant varieties.
Season Tips
194-day frost-free season
Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.
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
Retain moisture and nutrients in sandy soils with expanded vermiculite.
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 Carson County
113 vegetables that grow well in Zone 7a with planting dates for Carson County.
Show all 113 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 17 | Apr 21 | Apr 28 | Jul 21 – Aug 25 | 80–100 |
| Amaranth | Feb 24 | Apr 21 | Apr 28 | Jul 28 – Sep 15 | 90–120 |
| Artichoke | — | — | Apr 28 | Sep 1 – Nov 10 | 120–180 |
| Arugula | Mar 10 | Mar 31 | Apr 14 | May 19 – Jul 21 | 30–50 |
| Asparagus | — | — | Apr 28 | — | 730–1095 |
| Beets | — | Mar 31 | — | May 26 – Jun 23 | 50–70 |
| Belgian Endive | Mar 10 | Mar 31 | Apr 14 | Aug 4 – Sep 29 | 110–150 |
| Bitter Melon | Feb 24 | Apr 21 | Apr 28 | Jun 30 – Aug 11 | 60–90 |
| Black Beans | — | Apr 21 | — | Jul 21 – Sep 8 | 90–120 |
| Bok Choy | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 30 | 40–60 |
| Broccoli | Mar 10 | Mar 31 | Apr 14 | Jun 16 – Jul 28 | 60–90 |
| Broccoli Rabe | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 30 | 40–60 |
| Brussels Sprouts | Mar 10 | Mar 31 | Apr 14 | Jul 14 – Sep 8 | 90–130 |
| Butternut Squash | Mar 17 | Apr 21 | Apr 28 | Jul 28 – Sep 1 | 85–110 |
| Cabbage | Mar 10 | Mar 31 | Apr 14 | Jun 16 – Aug 11 | 60–100 |
| Calabash | Feb 24 | Apr 21 | Apr 28 | Jul 21 – Sep 15 | 80–120 |
| Cardoon | — | — | Apr 28 | Sep 1 – Oct 13 | 120–150 |
| Carrots | — | Mar 31 | — | Jun 2 – Jul 7 | 60–80 |
| Cauliflower | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Aug 11 | 55–100 |
| Celeriac | Mar 10 | Mar 31 | Apr 14 | Jul 28 – Sep 1 | 100–120 |
| Celery | Mar 10 | Mar 31 | Apr 14 | Jul 7 – Sep 1 | 80–120 |
| Celtuce | Mar 10 | Mar 31 | Apr 14 | Jun 16 – Jul 28 | 60–90 |
| Chard | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Jul 28 | 50–60 |
| Chayote | Feb 24 | Apr 21 | Apr 28 | Sep 1 – Nov 10 | 120–180 |
| Chickpeas | Mar 10 | Mar 31 | Apr 14 | Jul 7 – Aug 18 | 80–110 |
| Chicory | Mar 10 | Mar 31 | Apr 14 | Jun 16 – Jul 28 | 60–85 |
| Chinese Cabbage | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Jul 7 | 50–70 |
| Christmas Lima Beans | Feb 24 | Apr 21 | Apr 28 | Jul 21 – Aug 25 | 80–100 |
| Collard Greens | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Aug 11 | 55–75 |
| Corn | — | Apr 21 | — | Jun 23 – Aug 18 | 60–100 |
| Cowpeas | — | Apr 21 | — | Jun 23 – Aug 4 | 60–90 |
| Cress | Mar 10 | Mar 31 | Apr 14 | Apr 28 – May 19 | 14–21 |
| Crookneck Squash | Mar 17 | Apr 21 | Apr 28 | Jun 16 – Jul 14 | 45–60 |
| Crosne | — | Mar 31 | — | Sep 1 – Nov 3 | 150–200 |
| Cucumber | Mar 17 | Apr 21 | Apr 28 | Jun 23 – Aug 18 | 50–70 |
| Daikon | — | Mar 31 | — | May 26 – Jun 23 | 50–70 |
| Delicata Squash | Mar 17 | Apr 21 | Apr 28 | Jul 21 – Aug 25 | 80–100 |
| Edamame | — | Apr 21 | — | Jul 7 – Aug 18 | 75–100 |
| Eggplant | Feb 10 | Apr 21 | Apr 28 | Jul 7 – Sep 8 | 65–85 |
| Endive | Mar 10 | Mar 31 | Apr 14 | Jun 2 – Jul 7 | 45–65 |
| Escarole | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Jul 7 | 50–70 |
| Fava Beans | Mar 10 | Mar 31 | Apr 14 | Jun 30 – Aug 11 | 75–100 |
| Fennel | Feb 24 | Apr 21 | Apr 28 | Jun 30 – Aug 11 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Apr 21 | — | Jun 16 – Aug 11 | 50–65 |
| Horseradish | — | — | Apr 28 | Sep 1 – Nov 10 | 120–180 |
| Hot Peppers | Feb 10 | Apr 21 | Apr 28 | Jul 7 – Oct 13 | 70–120 |
| Hubbard Squash | Mar 17 | Apr 21 | Apr 28 | Aug 11 – Sep 15 | 100–120 |
| Jicama | Feb 24 | Apr 21 | Apr 28 | Sep 1 – Nov 10 | 120–180 |
| Kabocha | Mar 17 | Apr 21 | Apr 28 | Jul 28 – Aug 25 | 85–100 |
| Kai Lan | Mar 10 | Mar 31 | Apr 14 | Jun 2 – Jun 30 | 45–60 |
| Kale | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Aug 4 | 50–70 |
| Kidney Beans | — | Apr 21 | — | Jul 21 – Aug 25 | 85–110 |
| Kohlrabi | Mar 10 | Mar 31 | Apr 14 | Jun 2 – Jul 7 | 45–65 |
| Komatsuna | Mar 10 | Mar 31 | Apr 14 | May 19 – Jun 23 | 35–50 |
| Leeks | Mar 10 | Mar 31 | Apr 14 | Jul 14 – Sep 29 | 90–150 |
| Lentils | Mar 10 | Mar 31 | Apr 14 | Jul 7 – Aug 18 | 80–110 |
| Lettuce | Mar 10 | Mar 31 | Apr 14 | May 19 – Jul 28 | 30–60 |
| Lima Beans | — | Apr 21 | — | Jun 23 – Aug 4 | 60–90 |
| Loofah | Feb 24 | Apr 21 | Apr 28 | Aug 11 – Oct 13 | 100–150 |
| Luffa | Feb 24 | Apr 21 | Apr 28 | Jul 28 – Oct 13 | 90–150 |
| Mache | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 30 | 40–60 |
| Malabar Spinach | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Jul 21 | 55–70 |
| Melon | Mar 17 | Apr 21 | Apr 28 | Jul 7 – Aug 25 | 70–100 |
| Microgreens | Mar 10 | Mar 31 | Apr 14 | Apr 21 – May 19 | 7–21 |
| Mitsuba | Mar 10 | Mar 31 | Apr 7 | Jun 2 – Jul 28 | 50–70 |
| Mizuna | Mar 10 | Mar 31 | Apr 14 | May 19 – Jun 16 | 30–45 |
| Mustard Greens | Mar 10 | Mar 31 | Apr 14 | May 19 – Jul 21 | 30–50 |
| Napa Cabbage | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Jul 14 | 55–75 |
| New Zealand Spinach | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Jul 21 | 55–70 |
| Okra | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 18 | 50–65 |
| Onion | Mar 10 | Mar 31 | Apr 14 | Jul 14 – Sep 1 | 90–120 |
| Pac Choi | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 23 | 40–55 |
| Parsnip | — | Mar 31 | — | Jul 14 – Aug 25 | 100–130 |
| Patty Pan Squash | Mar 17 | Apr 21 | Apr 28 | Jun 16 – Jul 14 | 45–60 |
| Peas | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Aug 4 | 55–70 |
| Peppers | Feb 10 | Apr 21 | Apr 28 | Jun 30 – Sep 8 | 60–90 |
| Pole Beans | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 18 | 55–70 |
| Potatoes | Feb 24 | Apr 21 | Apr 28 | Jul 7 – Sep 15 | 70–120 |
| Pumpkin | Mar 17 | Apr 21 | Apr 28 | Jul 28 – Sep 15 | 85–120 |
| Purslane | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 30 | 40–60 |
| Radicchio | Mar 10 | Mar 31 | Apr 14 | Jun 16 – Jul 21 | 60–80 |
| Radish | — | Mar 31 | — | Apr 28 – May 19 | 22–35 |
| Rhubarb | — | — | May 5 | — | 365–730 |
| Romanesco | Mar 10 | Mar 31 | Apr 14 | Jun 30 – Aug 11 | 75–100 |
| Rutabaga | — | Mar 31 | — | Jun 23 – Jul 28 | 80–100 |
| Salsify | — | Mar 31 | — | Jul 14 – Aug 25 | 100–130 |
| Savoy Cabbage | Mar 10 | Mar 31 | Apr 14 | Jun 23 – Aug 18 | 70–110 |
| Scallions | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Jul 7 | 50–70 |
| Scarlet Runner Beans | Feb 24 | Apr 21 | Apr 28 | Jun 30 – Aug 4 | 60–80 |
| Shallot | Mar 10 | Mar 31 | Apr 14 | Jul 14 – Sep 1 | 90–120 |
| Shiso | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 18 | 50–70 |
| Snap Peas | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 18 | 55–70 |
| Snow Peas | Mar 10 | Mar 31 | Apr 14 | Jun 9 – Aug 4 | 50–65 |
| Soybeans | — | Apr 21 | — | Jul 14 – Sep 8 | 80–120 |
| Spaghetti Squash | Mar 17 | Apr 21 | Apr 28 | Jul 28 – Aug 25 | 85–100 |
| Spinach | Mar 10 | Mar 31 | Apr 14 | May 19 – Jul 21 | 35–50 |
| Squash (Summer) | Mar 17 | Apr 21 | Apr 28 | Jun 16 – Aug 18 | 45–65 |
| Squash (Winter) | Mar 17 | Apr 21 | Apr 28 | Jul 21 – Sep 15 | 80–120 |
| Sunchoke | — | — | Apr 28 | Aug 18 – Oct 13 | 110–150 |
| Sunflower | Feb 24 | Apr 21 | Apr 28 | Jul 7 – Aug 25 | 70–100 |
| Sweet Corn | — | Apr 21 | — | Jun 23 – Aug 4 | 60–90 |
| Sweet Potatoes | Feb 24 | Apr 21 | Apr 28 | Jul 28 – Sep 15 | 90–120 |
| Tatsoi | Mar 10 | Mar 31 | Apr 14 | May 19 – Jun 23 | 35–50 |
| Tomatillo | Feb 24 | Apr 21 | Apr 28 | Jun 30 – Sep 8 | 60–85 |
| Tomatoes | Feb 24 | Apr 21 | Apr 28 | Jun 30 – Sep 8 | 60–85 |
| Turnip | — | Mar 31 | — | May 12 – Jun 16 | 40–60 |
| Watercress | Mar 10 | Mar 31 | Apr 14 | May 26 – Jun 30 | 40–60 |
| Watermelon | Mar 17 | Apr 21 | Apr 28 | Jul 7 – Aug 25 | 70–100 |
| Wax Beans | — | Apr 21 | — | Jun 16 – Aug 11 | 50–65 |
| Winter Melon | Feb 24 | Apr 21 | Apr 28 | Jul 28 – Sep 15 | 90–120 |
| Yard Long Beans | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 4 | 55–80 |
| Zucchini | Mar 17 | Apr 21 | Apr 28 | Jun 16 – Aug 11 | 45–60 |
🍓 Fruits to Grow in Carson County
31 fruits that grow well in Zone 7a with planting dates for Carson County.
Show all 31 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 5 | Aug 4 – Nov 17 | 90–180 |
| Aronia | — | — | May 5 | — | 730–1095 |
| Blackberries | — | — | May 5 | — | 365–730 |
| Blueberries | — | — | May 5 | — | 730–1095 |
| Boysenberries | — | — | May 5 | — | 365–730 |
| Cantaloupe | — | — | May 5 | Jul 14 – Aug 18 | 70–90 |
| Che Fruit | — | — | May 5 | — | 1095–1825 |
| Cranberries | — | — | May 5 | — | 730–1095 |
| Currants | — | — | May 5 | — | 730–1095 |
| Elderberries | — | — | May 5 | — | 730–1095 |
| Figs | — | — | May 5 | — | 730–1825 |
| Goji Berries | — | — | May 5 | — | 730–1095 |
| Gooseberries | — | — | May 5 | — | 730–1095 |
| Grapes | — | — | May 5 | — | 730–1095 |
| Ground Cherry | — | — | May 5 | Jul 14 – Sep 8 | 65–80 |
| Hardy Kiwi | — | — | May 5 | — | 1095–1825 |
| Haskaps | — | — | May 5 | — | 730–1095 |
| Honeydew | — | — | May 5 | Jul 28 – Sep 8 | 80–110 |
| Jostaberry | — | — | May 5 | — | 730–1095 |
| Kiwi | — | — | May 5 | — | 1095–1825 |
| Lingonberries | — | — | May 5 | — | 730–1095 |
| Loquat | — | — | May 5 | — | 730–1825 |
| Medlar | — | — | May 5 | — | 1095–1825 |
| Mulberries | — | — | May 5 | — | 730–1825 |
| Pawpaw | — | — | May 5 | — | 1095–2555 |
| Persimmon | — | — | May 5 | — | 1095–2555 |
| Pomegranate | — | — | May 5 | — | 730–1095 |
| Quince | — | — | May 5 | — | 1095–1825 |
| Raspberries | — | — | May 5 | — | 365–730 |
| Serviceberries | — | — | May 5 | — | 730–1095 |
| Strawberries | — | — | May 5 | Aug 4 – Dec 15 | 90–365 |
🌿 Herbs to Grow in Carson County
39 herbs that grow well in Zone 7a with planting dates for Carson County.
Show all 39 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 10 | Mar 31 | Apr 7 | — | 365–730 |
| Anise | Mar 10 | Mar 31 | Apr 7 | Jul 7 – Sep 22 | 90–120 |
| Basil | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 25 | 50–75 |
| Bee Balm | — | — | Apr 21 | Jul 21 – Oct 6 | 90–120 |
| Borage | Mar 10 | Mar 31 | Apr 7 | Jun 2 – Jul 21 | 50–60 |
| Caraway | Mar 10 | Mar 31 | Apr 7 | — | 365–450 |
| Catnip | — | — | Apr 21 | Jun 23 – Aug 25 | 60–80 |
| Chamomile | Mar 10 | Mar 31 | Apr 7 | Jun 9 – Aug 18 | 60–90 |
| Chervil | Mar 10 | Mar 31 | Apr 7 | May 19 – Jul 21 | 40–60 |
| Chives | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Cilantro | Mar 10 | Mar 31 | Apr 7 | May 19 – Jul 21 | 40–60 |
| Comfrey | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Cumin | Mar 10 | Mar 31 | Apr 7 | Jul 21 – Sep 22 | 100–120 |
| Dill | Mar 10 | Mar 31 | Apr 7 | May 19 – Jul 21 | 40–60 |
| Echinacea | — | — | Apr 21 | Aug 25 – Dec 1 | 120–180 |
| Epazote | Feb 24 | Apr 21 | Apr 28 | Jun 16 – Aug 11 | 45–60 |
| Fennel (herb) | Mar 10 | Mar 31 | Apr 7 | Jun 9 – Aug 18 | 60–90 |
| Feverfew | — | — | Apr 21 | Jul 21 – Oct 6 | 90–120 |
| Garlic Chives | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Horehound | — | — | Apr 21 | Jul 7 – Sep 1 | 75–90 |
| Hyssop | — | — | Apr 21 | Jun 30 – Sep 1 | 70–90 |
| Lavender | — | — | Apr 21 | Jul 21 – Dec 1 | 90–200 |
| Lemon Balm | — | — | Apr 21 | Jun 23 – Aug 11 | 60–70 |
| Lemon Thyme | — | — | Apr 21 | Jun 30 – Sep 1 | 70–90 |
| Lovage | — | — | Apr 21 | Jun 30 – Sep 1 | 70–90 |
| Marjoram | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Mint | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Oregano | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Parsley | Mar 10 | Mar 31 | Apr 7 | Jun 9 – Aug 11 | 60–80 |
| Rosemary | — | — | Apr 21 | Jul 14 – Dec 1 | 80–180 |
| Rue | — | — | Apr 21 | Jun 30 – Sep 1 | 70–90 |
| Sage | — | — | Apr 21 | Jul 7 – Sep 1 | 75–90 |
| Savory | — | — | Apr 21 | Jun 16 – Aug 11 | 50–70 |
| Sorrel | Mar 10 | Mar 31 | Apr 7 | May 19 – Jul 21 | 40–60 |
| Tarragon | — | — | Apr 21 | Jun 23 – Sep 1 | 60–90 |
| Thai Basil | Feb 24 | Apr 21 | Apr 28 | Jun 23 – Aug 25 | 50–75 |
| Thyme | — | — | Apr 21 | Jun 30 – Sep 1 | 70–90 |
| Valerian | — | — | Apr 21 | Aug 25 – Dec 1 | 120–180 |
| Yarrow | — | — | Apr 21 | Jul 21 – Oct 6 | 90–120 |
Monthly Planting Guide for Carson County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Carson County.
Frequently Asked Questions
What planting zone is Carson County, TX?
Carson County is in USDA Hardiness Zone 7a. 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 Carson County, TX?
Based on 31 years of NOAA weather station data, the median last spring frost in Carson County falls around April 14. In 8 out of 10 years, last frost lands between March 28 and May 1 — a 34-day window of variability. Use May 1 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Carson County, TX?
The median first fall frost in Carson County arrives around October 25. In cold years it can arrive as early as October 9; in mild years as late as November 7. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Carson County?
Carson County has a frost-free growing season of approximately 194 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending longer by about 1.71 days per decade.
What is the soil like in Carson County for gardening?
Carson County has predominantly Sandy Loam soil with a pH range of 7.9–8.8 and Excessively Drained drainage. The native soil conditions make raised beds a particularly good investment here — they let you control drainage and fertility independent of the ground soil.
What is grown commercially in Carson County?
Carson 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 Carson County a good location for home gardening?
Carson County scores 49/100 (Moderate) 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 Carson County gardeners in Zone 7a 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.
