Martin County, TX — Planting Guide
Martin County is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 12, giving you a growing season of approximately 232 days.
At an elevation of 4,922 ft, Martin County receives approximately 50.2 in of rainfall annually. Summer highs average 100°F with winter lows around 30°F. The predominant soil type is Sandy Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 46 days year to year — ranging from February 27 in warm years to April 13 in cold years. The growing season is trending longer by about 6.13 days per decade. Martin County scores 33/100 (Challenging) on the Microclimate Index.
🌡️ Zone
7b (5°F to 10°F min)
❄️ Last Frost
March 25
🍂 First Frost
November 12
📅 Growing Season
232 days
⛰️ Elevation
4,922 ft
🌧️ Annual Rainfall
50.2 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 | 2.9 in | 3 days | — | None |
| Feb | 3 in | 2 days | — | None |
| Mar | 2.4 in | 1 days | 1.9 in | High |
| Apr | 1.9 in | 0 days | 2.4 in | High |
| May | 0.9 in | 0 days | 3.4 in | Critical |
| Jun | 1.4 in | 2 days | 2.9 in | High |
| Jul | 9.2 in | 7 days | — | Low |
| Aug | 10.1 in | 7 days | — | Low |
| Sep | 7 in | 4 days | — | Low |
| Oct | 4.9 in | 2 days | — | Low |
| Nov | 2.8 in | 2 days | — | None |
| Dec | 3.7 in | 3 days | — | None |
Annual total: 50.2 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.
Martin County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.2-8.7
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) | Apr 13 | Nov 25 | 226 days |
| Cautious | Apr 5 | Nov 19 | 228 days |
| Average year | Mar 25 | Nov 12 | 232 days |
| Optimistic | Mar 17 | Nov 2 | 230 days |
| Aggressive (risky) | Feb 27 | Oct 26 | 241 days |
Not very — frost dates can vary by ±46 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 6.1 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Martin County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Martin 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 Martin County's climate and soil.
County Extension Office
Martin 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 Martin County
Finding local nurseries & garden centers in Martin County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Martin 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 Martin County TX" or "garden center Martin 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 Martin County TX" or check your extension office and local parks department. Facebook groups like "Martin 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
14.1 hours
Summer solstice daylight
Shortest Day
9.9 hours
Winter solstice daylight
Peak Sun Hours
10.5 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 | 10.1 hr | 5.3 hr | Short day |
| February | 10.9 hr | 6.5 hr | Short day |
| March | 11.8 hr | 7.3 hr | Short day |
| April | 12.8 hr | 7.9 hr | Neutral |
| May | 13.7 hr | 8.2 hr | Neutral |
| June | 14.1 hr | 9.4 hr | Long day |
| July | 13.9 hr | 10.5 hr | Neutral |
| August | 13.2 hr | 9.2 hr | Neutral |
| September | 12.2 hr | 7.9 hr | Neutral |
| October | 11.2 hr | 7.2 hr | Short day |
| November | 10.3 hr | 5.7 hr | Short day |
| December | 9.9 hr | 5.6 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 Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 23°F | 33°F | ❄️ Dormant | ~36 weeks |
| Feb | 27°F | 31°F | ❄️ Dormant | ~36 weeks |
| Mar | 31°F | 35°F | ❄️ Dormant | ~36 weeks |
| Apr | 46°F | 43°F | 🐢 Slow | ~24 weeks |
| May | 53°F | 52°F | ♻️ Active | ~14 weeks |
| Jun | 63°F | 61°F | ♻️ Active | ~14 weeks |
| Jul | 74°F | 68°F | 🔥 Peak | ~8 weeks |
| Aug | 74°F | 69°F | 🔥 Peak | ~8 weeks |
| Sep | 68°F | 66°F | 🔥 Peak | ~8 weeks |
| Oct | 58°F | 58°F | ♻️ Active | ~14 weeks |
| Nov | 43°F | 49°F | 🐢 Slow | ~24 weeks |
| Dec | 32°F | 40°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 Martin 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 | High | 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 | Moderate | 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 Martin 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 5 | Sep 17 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 4 | Sep 3 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 1 | Sep 3 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Feb 23 | Sep 3 | ✓ 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 22 | Oct 15 | — | 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 | Sep 5 | Mar 4 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 14 | Mar 4 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Oct 4 | Mar 11 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 25 | Mar 11 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Oct 9 | Mar 4 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 21 | Mar 4 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 13 | Mar 11 | — | 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: 17 mph Summer: 14 mph
Fall: 15 mph Winter: 17 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 (178 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
25,019 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 1,000 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
May
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 50.2 inches of rain per year
- A 1,000 sq ft roof can collect roughly 25,019 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 Martin County
Soil Type
Sandy Loam
Soil pH 7.2–8.7 · Moderately Well 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
232-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 Martin County
113 vegetables that grow well in Zone 7b with planting dates for Martin County.
Show all 113 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Feb 25 | Apr 1 | Apr 8 | Jul 1 – Aug 5 | 80–100 |
| Amaranth | Feb 4 | Apr 1 | Apr 8 | Jul 8 – Aug 26 | 90–120 |
| Artichoke | — | — | Apr 8 | Aug 12 – Oct 21 | 120–180 |
| Arugula | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jul 1 | 30–50 |
| Asparagus | — | — | Apr 8 | — | 730–1095 |
| Beets | — | Mar 11 | — | May 6 – Jun 3 | 50–70 |
| Belgian Endive | Feb 18 | Mar 11 | Mar 25 | Jul 15 – Sep 9 | 110–150 |
| Bitter Melon | Feb 4 | Apr 1 | Apr 8 | Jun 10 – Jul 22 | 60–90 |
| Black Beans | — | Apr 1 | — | Jul 1 – Aug 19 | 90–120 |
| Bok Choy | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 10 | 40–60 |
| Broccoli | Feb 18 | Mar 11 | Mar 25 | May 27 – Jul 8 | 60–90 |
| Broccoli Rabe | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 10 | 40–60 |
| Brussels Sprouts | Feb 18 | Mar 11 | Mar 25 | Jun 24 – Aug 19 | 90–130 |
| Butternut Squash | Feb 25 | Apr 1 | Apr 8 | Jul 8 – Aug 12 | 85–110 |
| Cabbage | Feb 18 | Mar 11 | Mar 25 | May 27 – Jul 22 | 60–100 |
| Calabash | Feb 4 | Apr 1 | Apr 8 | Jul 1 – Aug 26 | 80–120 |
| Cardoon | — | — | Apr 8 | Aug 12 – Sep 23 | 120–150 |
| Carrots | — | Mar 11 | — | May 13 – Jun 17 | 60–80 |
| Cauliflower | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 22 | 55–100 |
| Celeriac | Feb 18 | Mar 11 | Mar 25 | Jul 8 – Aug 12 | 100–120 |
| Celery | Feb 18 | Mar 11 | Mar 25 | Jun 17 – Aug 12 | 80–120 |
| Celtuce | Feb 18 | Mar 11 | Mar 25 | May 27 – Jul 8 | 60–90 |
| Chard | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 8 | 50–60 |
| Chayote | Feb 4 | Apr 1 | Apr 8 | Aug 12 – Oct 21 | 120–180 |
| Chickpeas | Feb 18 | Mar 11 | Mar 25 | Jun 17 – Jul 29 | 80–110 |
| Chicory | Feb 18 | Mar 11 | Mar 25 | May 27 – Jul 8 | 60–85 |
| Chinese Cabbage | Feb 18 | Mar 11 | Mar 25 | May 20 – Jun 17 | 50–70 |
| Christmas Lima Beans | Feb 4 | Apr 1 | Apr 8 | Jul 1 – Aug 5 | 80–100 |
| Collard Greens | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 22 | 55–75 |
| Corn | — | Apr 1 | — | Jun 3 – Jul 29 | 60–100 |
| Cowpeas | — | Apr 1 | — | Jun 3 – Jul 15 | 60–90 |
| Cress | Feb 18 | Mar 11 | Mar 25 | Apr 8 – Apr 29 | 14–21 |
| Crookneck Squash | Feb 25 | Apr 1 | Apr 8 | May 27 – Jun 24 | 45–60 |
| Crosne | — | Mar 11 | — | Aug 12 – Oct 14 | 150–200 |
| Cucumber | Feb 25 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 50–70 |
| Daikon | — | Mar 11 | — | May 6 – Jun 3 | 50–70 |
| Delicata Squash | Feb 25 | Apr 1 | Apr 8 | Jul 1 – Aug 5 | 80–100 |
| Edamame | — | Apr 1 | — | Jun 17 – Jul 29 | 75–100 |
| Eggplant | Jan 21 | Apr 1 | Apr 8 | Jun 17 – Aug 19 | 65–85 |
| Endive | Feb 18 | Mar 11 | Mar 25 | May 13 – Jun 17 | 45–65 |
| Escarole | Feb 18 | Mar 11 | Mar 25 | May 20 – Jun 17 | 50–70 |
| Fava Beans | Feb 18 | Mar 11 | Mar 25 | Jun 10 – Jul 22 | 75–100 |
| Fennel | Feb 4 | Apr 1 | Apr 8 | Jun 10 – Jul 22 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Apr 1 | — | May 27 – Jul 22 | 50–65 |
| Horseradish | — | — | Apr 8 | Aug 12 – Oct 21 | 120–180 |
| Hot Peppers | Jan 21 | Apr 1 | Apr 8 | Jun 17 – Sep 23 | 70–120 |
| Hubbard Squash | Feb 25 | Apr 1 | Apr 8 | Jul 22 – Aug 26 | 100–120 |
| Jicama | Feb 4 | Apr 1 | Apr 8 | Aug 12 – Oct 21 | 120–180 |
| Kabocha | Feb 25 | Apr 1 | Apr 8 | Jul 8 – Aug 5 | 85–100 |
| Kai Lan | Feb 18 | Mar 11 | Mar 25 | May 13 – Jun 10 | 45–60 |
| Kale | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 15 | 50–70 |
| Kidney Beans | — | Apr 1 | — | Jul 1 – Aug 5 | 85–110 |
| Kohlrabi | Feb 18 | Mar 11 | Mar 25 | May 13 – Jun 17 | 45–65 |
| Komatsuna | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jun 3 | 35–50 |
| Leeks | Feb 18 | Mar 11 | Mar 25 | Jun 24 – Sep 9 | 90–150 |
| Lentils | Feb 18 | Mar 11 | Mar 25 | Jun 17 – Jul 29 | 80–110 |
| Lettuce | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jul 8 | 30–60 |
| Lima Beans | — | Apr 1 | — | Jun 3 – Jul 15 | 60–90 |
| Loofah | Feb 4 | Apr 1 | Apr 8 | Jul 22 – Sep 23 | 100–150 |
| Luffa | Feb 4 | Apr 1 | Apr 8 | Jul 8 – Sep 23 | 90–150 |
| Mache | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 10 | 40–60 |
| Malabar Spinach | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 1 | 55–70 |
| Melon | Feb 25 | Apr 1 | Apr 8 | Jun 17 – Aug 5 | 70–100 |
| Microgreens | Feb 18 | Mar 11 | Mar 25 | Apr 1 – Apr 29 | 7–21 |
| Mitsuba | Feb 18 | Mar 11 | Mar 18 | May 13 – Jul 8 | 50–70 |
| Mizuna | Feb 18 | Mar 11 | Mar 25 | Apr 29 – May 27 | 30–45 |
| Mustard Greens | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jul 1 | 30–50 |
| Napa Cabbage | Feb 18 | Mar 11 | Mar 25 | May 20 – Jun 24 | 55–75 |
| New Zealand Spinach | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 1 | 55–70 |
| Okra | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 50–65 |
| Onion | Feb 18 | Mar 11 | Mar 25 | Jun 24 – Aug 12 | 90–120 |
| Pac Choi | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 3 | 40–55 |
| Parsnip | — | Mar 11 | — | Jun 24 – Aug 5 | 100–130 |
| Patty Pan Squash | Feb 25 | Apr 1 | Apr 8 | May 27 – Jun 24 | 45–60 |
| Peas | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 15 | 55–70 |
| Peppers | Jan 21 | Apr 1 | Apr 8 | Jun 10 – Aug 19 | 60–90 |
| Pole Beans | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 55–70 |
| Potatoes | Feb 4 | Apr 1 | Apr 8 | Jun 17 – Aug 26 | 70–120 |
| Pumpkin | Feb 25 | Apr 1 | Apr 8 | Jul 8 – Aug 26 | 85–120 |
| Purslane | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 10 | 40–60 |
| Radicchio | Feb 18 | Mar 11 | Mar 25 | May 27 – Jul 1 | 60–80 |
| Radish | — | Mar 11 | — | Apr 8 – Apr 29 | 22–35 |
| Rhubarb | — | — | Apr 15 | — | 365–730 |
| Romanesco | Feb 18 | Mar 11 | Mar 25 | Jun 10 – Jul 22 | 75–100 |
| Rutabaga | — | Mar 11 | — | Jun 3 – Jul 8 | 80–100 |
| Salsify | — | Mar 11 | — | Jun 24 – Aug 5 | 100–130 |
| Savoy Cabbage | Feb 18 | Mar 11 | Mar 25 | Jun 3 – Jul 29 | 70–110 |
| Scallions | Feb 18 | Mar 11 | Mar 25 | May 20 – Jun 17 | 50–70 |
| Scarlet Runner Beans | Feb 4 | Apr 1 | Apr 8 | Jun 10 – Jul 15 | 60–80 |
| Shallot | Feb 18 | Mar 11 | Mar 25 | Jun 24 – Aug 12 | 90–120 |
| Shiso | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 50–70 |
| Snap Peas | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 29 | 55–70 |
| Snow Peas | Feb 18 | Mar 11 | Mar 25 | May 20 – Jul 15 | 50–65 |
| Soybeans | — | Apr 1 | — | Jun 24 – Aug 19 | 80–120 |
| Spaghetti Squash | Feb 25 | Apr 1 | Apr 8 | Jul 8 – Aug 5 | 85–100 |
| Spinach | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jul 1 | 35–50 |
| Squash (Summer) | Feb 25 | Apr 1 | Apr 8 | May 27 – Jul 29 | 45–65 |
| Squash (Winter) | Feb 25 | Apr 1 | Apr 8 | Jul 1 – Aug 26 | 80–120 |
| Sunchoke | — | — | Apr 8 | Jul 29 – Sep 23 | 110–150 |
| Sunflower | Feb 4 | Apr 1 | Apr 8 | Jun 17 – Aug 5 | 70–100 |
| Sweet Corn | — | Apr 1 | — | Jun 3 – Jul 15 | 60–90 |
| Sweet Potatoes | Feb 4 | Apr 1 | Apr 8 | Jul 8 – Aug 26 | 90–120 |
| Tatsoi | Feb 18 | Mar 11 | Mar 25 | Apr 29 – Jun 3 | 35–50 |
| Tomatillo | Feb 4 | Apr 1 | Apr 8 | Jun 10 – Aug 19 | 60–85 |
| Tomatoes | Feb 4 | Apr 1 | Apr 8 | Jun 10 – Aug 19 | 60–85 |
| Turnip | — | Mar 11 | — | Apr 22 – May 27 | 40–60 |
| Watercress | Feb 18 | Mar 11 | Mar 25 | May 6 – Jun 10 | 40–60 |
| Watermelon | Feb 25 | Apr 1 | Apr 8 | Jun 17 – Aug 5 | 70–100 |
| Wax Beans | — | Apr 1 | — | May 27 – Jul 22 | 50–65 |
| Winter Melon | Feb 4 | Apr 1 | Apr 8 | Jul 8 – Aug 26 | 90–120 |
| Yard Long Beans | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Jul 15 | 55–80 |
| Zucchini | Feb 25 | Apr 1 | Apr 8 | May 27 – Jul 22 | 45–60 |
🍓 Fruits to Grow in Martin County
31 fruits that grow well in Zone 7b with planting dates for Martin County.
Show all 31 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 15 | Jul 15 – Oct 28 | 90–180 |
| Aronia | — | — | Apr 15 | — | 730–1095 |
| Blackberries | — | — | Apr 15 | — | 365–730 |
| Blueberries | — | — | Apr 15 | — | 730–1095 |
| Boysenberries | — | — | Apr 15 | — | 365–730 |
| Cantaloupe | — | — | Apr 15 | Jun 24 – Jul 29 | 70–90 |
| Che Fruit | — | — | Apr 15 | — | 1095–1825 |
| Cranberries | — | — | Apr 15 | — | 730–1095 |
| Currants | — | — | Apr 15 | — | 730–1095 |
| Elderberries | — | — | Apr 15 | — | 730–1095 |
| Figs | — | — | Apr 15 | — | 730–1825 |
| Goji Berries | — | — | Apr 15 | — | 730–1095 |
| Gooseberries | — | — | Apr 15 | — | 730–1095 |
| Grapes | — | — | Apr 15 | — | 730–1095 |
| Ground Cherry | — | — | Apr 15 | Jun 24 – Aug 19 | 65–80 |
| Hardy Kiwi | — | — | Apr 15 | — | 1095–1825 |
| Haskaps | — | — | Apr 15 | — | 730–1095 |
| Honeydew | — | — | Apr 15 | Jul 8 – Aug 19 | 80–110 |
| Jostaberry | — | — | Apr 15 | — | 730–1095 |
| Kiwi | — | — | Apr 15 | — | 1095–1825 |
| Lingonberries | — | — | Apr 15 | — | 730–1095 |
| Loquat | — | — | Apr 15 | — | 730–1825 |
| Medlar | — | — | Apr 15 | — | 1095–1825 |
| Mulberries | — | — | Apr 15 | — | 730–1825 |
| Pawpaw | — | — | Apr 15 | — | 1095–2555 |
| Persimmon | — | — | Apr 15 | — | 1095–2555 |
| Pomegranate | — | — | Apr 15 | — | 730–1095 |
| Quince | — | — | Apr 15 | — | 1095–1825 |
| Raspberries | — | — | Apr 15 | — | 365–730 |
| Serviceberries | — | — | Apr 15 | — | 730–1095 |
| Strawberries | — | — | Apr 15 | Jul 15 – Nov 25 | 90–365 |
🌿 Herbs to Grow in Martin County
39 herbs that grow well in Zone 7b with planting dates for Martin County.
Show all 39 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Feb 18 | Mar 11 | Mar 18 | — | 365–730 |
| Anise | Feb 18 | Mar 11 | Mar 18 | Jun 17 – Sep 2 | 90–120 |
| Basil | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Aug 5 | 50–75 |
| Bee Balm | — | — | Apr 1 | Jul 1 – Sep 16 | 90–120 |
| Borage | Feb 18 | Mar 11 | Mar 18 | May 13 – Jul 1 | 50–60 |
| Caraway | Feb 18 | Mar 11 | Mar 18 | — | 365–450 |
| Catnip | — | — | Apr 1 | Jun 3 – Aug 5 | 60–80 |
| Chamomile | Feb 18 | Mar 11 | Mar 18 | May 20 – Jul 29 | 60–90 |
| Chervil | Feb 18 | Mar 11 | Mar 18 | Apr 29 – Jul 1 | 40–60 |
| Chives | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Cilantro | Feb 18 | Mar 11 | Mar 18 | Apr 29 – Jul 1 | 40–60 |
| Comfrey | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Cumin | Feb 18 | Mar 11 | Mar 18 | Jul 1 – Sep 2 | 100–120 |
| Dill | Feb 18 | Mar 11 | Mar 18 | Apr 29 – Jul 1 | 40–60 |
| Echinacea | — | — | Apr 1 | Aug 5 – Nov 11 | 120–180 |
| Epazote | Feb 4 | Apr 1 | Apr 8 | May 27 – Jul 22 | 45–60 |
| Fennel (herb) | Feb 18 | Mar 11 | Mar 18 | May 20 – Jul 29 | 60–90 |
| Feverfew | — | — | Apr 1 | Jul 1 – Sep 16 | 90–120 |
| Garlic Chives | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Horehound | — | — | Apr 1 | Jun 17 – Aug 12 | 75–90 |
| Hyssop | — | — | Apr 1 | Jun 10 – Aug 12 | 70–90 |
| Lavender | — | — | Apr 1 | Jul 1 – Nov 11 | 90–200 |
| Lemon Balm | — | — | Apr 1 | Jun 3 – Jul 22 | 60–70 |
| Lemon Thyme | — | — | Apr 1 | Jun 10 – Aug 12 | 70–90 |
| Lovage | — | — | Apr 1 | Jun 10 – Aug 12 | 70–90 |
| Marjoram | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Mint | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Oregano | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Parsley | Feb 18 | Mar 11 | Mar 18 | May 20 – Jul 22 | 60–80 |
| Rosemary | — | — | Apr 1 | Jun 24 – Nov 11 | 80–180 |
| Rue | — | — | Apr 1 | Jun 10 – Aug 12 | 70–90 |
| Sage | — | — | Apr 1 | Jun 17 – Aug 12 | 75–90 |
| Savory | — | — | Apr 1 | May 27 – Jul 22 | 50–70 |
| Sorrel | Feb 18 | Mar 11 | Mar 18 | Apr 29 – Jul 1 | 40–60 |
| Tarragon | — | — | Apr 1 | Jun 3 – Aug 12 | 60–90 |
| Thai Basil | Feb 4 | Apr 1 | Apr 8 | Jun 3 – Aug 5 | 50–75 |
| Thyme | — | — | Apr 1 | Jun 10 – Aug 12 | 70–90 |
| Valerian | — | — | Apr 1 | Aug 5 – Nov 11 | 120–180 |
| Yarrow | — | — | Apr 1 | Jul 1 – Sep 16 | 90–120 |
Monthly Planting Guide for Martin County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Martin County.
Frequently Asked Questions
What planting zone is Martin County, TX?
Martin County is in USDA Hardiness Zone 7b. 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 Martin County, TX?
Based on 31 years of NOAA weather station data, the median last spring frost in Martin County falls around March 25. In 8 out of 10 years, last frost lands between February 27 and April 13 — a 46-day window of variability. Use April 13 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Martin County, TX?
The median first fall frost in Martin County arrives around November 12. In cold years it can arrive as early as October 26; in mild years as late as November 25. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Martin County?
Martin County has a frost-free growing season of approximately 232 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 6.13 days per decade.
What is the soil like in Martin County for gardening?
Martin County has predominantly Sandy Loam soil with a pH range of 7.2–8.7 and Moderately Well 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 Martin County?
Martin County has commercial agriculture that includes Cattle, Cotton, Sorghum. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Martin County a good location for home gardening?
Martin County scores 33/100 (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 Martin County gardeners in Zone 7b 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.
