Blog

Sterling County, TX — Planting Guide

Sterling County is in USDA Zone 7b. The average last spring frost is March 24 and the first fall frost is November 12, giving you a growing season of approximately 233 days.

At an elevation of 2,929 ft, Sterling County receives approximately 50.9 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 46 days year to year — ranging from February 27 in warm years to April 14 in cold years. The growing season is trending longer by about 1.61 days per decade. Sterling County scores 45/100 (Moderate) on the Microclimate Index.

🌡️ Zone

7b (5°F to 10°F min)

❄️ Last Frost

March 24

🍂 First Frost

November 12

📅 Growing Season

233 days

⛰️ Elevation

2,929 ft

🌧️ Annual Rainfall

50.9 in

Sterling County, TX Long season
233 days
Last Spring Frost March 24
233 growing days
First Fall Frost November 12

Monthly Watering Calendar

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

1"/wk 0" 2.4" 4.7" 7.1" 9.4" Jan 3.5" Feb 2.7" +1.5" Mar 2.8" +2.4" Apr 1.9" +3" May 1.3" +2.4" Jun 1.9" Jul 8.9" Aug 9.4" Sep 7.9" Oct 4.2" Nov 3" Dec 3.3"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 3.5 in 3 days None
Feb 2.7 in 2 days None
Mar 2.8 in 2 days 1.5 in Moderate
Apr 1.9 in 0 days 2.4 in High
May 1.3 in 0 days 3 in High
Jun 1.9 in 2 days 2.4 in High
Jul 8.9 in 7 days Low
Aug 9.4 in 6 days Low
Sep 7.9 in 4 days Low
Oct 4.2 in 3 days 0.1 in Low
Nov 3 in 2 days None
Dec 3.3 in 2 days None

Annual total: 50.8 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.

Sterling County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Mar 24 → Nov 12 233 frost-free days Protect crops frost returns Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Apr 14 Protect by: Nov 28

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 14 Nov 28 228 days
Cautious Apr 2 Nov 19 231 days
Average year Mar 24 Nov 12 233 days
Optimistic Mar 9 Nov 5 241 days
Aggressive (risky) Feb 27 Oct 27 242 days
📊
How predictable are frost dates here?

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.

🌱
Is the growing season changing?

Yes — growing seasons are getting longer here (about 1.6 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

45 Moderate
Frost Timing Risk
10.0/10
Drought Risk
7.5/10
Soil Difficulty
3.0/10
Altitude Challenge
3.9/10
Climate Shift
6.4/10
Rainfall Challenge
2.4/10

Sterling County presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 7b Frost Countdown
--
Loading...
Last Frost: Mar 24 First Frost: Nov 12

Local Gardening Help in Sterling 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 Sterling County's climate and soil.

County Extension Office

Sterling 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.

Find Master Gardeners in TX →

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.

Request a Soil Test →

Services Available in Sterling County

Soil testing Pest management Master Gardener program Water conservation
Finding local nurseries & garden centers in Sterling County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Sterling 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 Sterling County TX" or "garden center Sterling 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 Sterling County TX" or check your extension office and local parks department. Facebook groups like "Sterling 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
After Zucchini (harvest ends Jul 21) 114 days until frost
After Cantaloupe (harvest ends Jul 28) 107 days until frost
After Corn (harvest ends Jul 21) 114 days until frost
After Okra (harvest ends Jul 28) 107 days until frost
After Sweet Corn (harvest ends Jul 7) 128 days until frost
After Watermelon (harvest ends Aug 4) 100 days until frost

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

10.2 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.

14hr 12hr 4h 7h 10h 13h 16h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

Onion tip: Day-neutral onion varieties like Candy, Cabernet, and Sierra Blanca perform best in your day-length range.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 10.1 hr 5.5 hr Short day
February 10.9 hr 6.4 hr Short day
March 11.8 hr 6.8 hr Short day
April 12.8 hr 7.6 hr Neutral
May 13.6 hr 8.2 hr Neutral
June 14.1 hr 10.1 hr Long day
July 13.9 hr 10.2 hr Neutral
August 13.2 hr 9.1 hr Neutral
September 12.2 hr 8.5 hr Neutral
October 11.2 hr 7.2 hr Short day
November 10.3 hr 6 hr Short day
December 9.9 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

Jun

Microbial activity peaks when soil is warm.

Active Composting

7 months

Solid season. Piles go dormant in winter.

60°F 70°F 20° 38° 55° 73° 90° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 32°F 40°F ❄️ Dormant ~36 weeks
Feb 31°F 37°F ❄️ Dormant ~36 weeks
Mar 39°F 44°F ❄️ Dormant ~36 weeks
Apr 52°F 50°F ♻️ Active ~14 weeks
May 63°F 59°F ♻️ Active ~14 weeks
Jun 72°F 69°F 🔥 Peak ~8 weeks
Jul 79°F 75°F 🔥 Peak ~8 weeks
Aug 79°F 75°F 🔥 Peak ~8 weeks
Sep 76°F 72°F 🔥 Peak ~8 weeks
Oct 61°F 66°F ♻️ Active ~14 weeks
Nov 50°F 56°F 🐢 Slow ~24 weeks
Dec 37°F 44°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 Sterling County

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Insect Pest Pressure

6.8 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

7.6 / 10

High fungal/bacterial risk. Space plants for airflow, water at soil level.

Seasonal Risk

Spring Moderate
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak 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 High 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 Sterling 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 Mar 30 Sep 3 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Mar 28 Sep 17 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Mar 31 Sep 17 Massive biomass, breaks compaction, suppresses nematodes
White clover Feb 25 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 12 Oct 22 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 3 Mar 3 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Sep 2 Mar 10 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Sep 30 Mar 3 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Sep 2 Mar 3 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Oct 12 Mar 10 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Aug 20 Mar 3 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Aug 12 Mar 3 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: 16 mph   Summer: 12 mph

Fall: 12 mph   Winter: 14 mph

Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.

Windbreak Benefit

6.8/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Low

Relatively flat terrain (396 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

25,318 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

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 50.8 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 25,318 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 Sterling County

Soil Type

Sandy Loam

Soil pH 7.4–8.6 · 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

233-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.

Get My Free Planner →

Recommended for Your Garden

🫧
Vermiculite $12-22

Retain moisture and nutrients in sandy soils with expanded vermiculite.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

📏
Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

🥬 Vegetables to Grow in Sterling County

113 vegetables that grow well in Zone 7b with planting dates for Sterling County.

Show all 113 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Feb 24 Mar 31 Apr 7 Jun 30 – Aug 4 80–100
Amaranth Feb 3 Mar 31 Apr 7 Jul 7 – Aug 25 90–120
Artichoke Apr 7 Aug 11 – Oct 20 120–180
Arugula Feb 17 Mar 10 Mar 24 Apr 28 – Jun 30 30–50
Asparagus Apr 7 730–1095
Beets Mar 10 May 5 – Jun 2 50–70
Belgian Endive Feb 17 Mar 10 Mar 24 Jul 14 – Sep 8 110–150
Bitter Melon Feb 3 Mar 31 Apr 7 Jun 9 – Jul 21 60–90
Black Beans Mar 31 Jun 30 – Aug 18 90–120
Bok Choy Feb 17 Mar 10 Mar 24 May 5 – Jun 9 40–60
Broccoli Feb 17 Mar 10 Mar 24 May 26 – Jul 7 60–90
Broccoli Rabe Feb 17 Mar 10 Mar 24 May 5 – Jun 9 40–60
Brussels Sprouts Feb 17 Mar 10 Mar 24 Jun 23 – Aug 18 90–130
Butternut Squash Feb 24 Mar 31 Apr 7 Jul 7 – Aug 11 85–110
Cabbage Feb 17 Mar 10 Mar 24 May 26 – Jul 21 60–100
Calabash Feb 3 Mar 31 Apr 7 Jun 30 – Aug 25 80–120
Cardoon Apr 7 Aug 11 – Sep 22 120–150
Carrots Mar 10 May 12 – Jun 16 60–80
Cauliflower Feb 17 Mar 10 Mar 24 May 19 – Jul 21 55–100
Celeriac Feb 17 Mar 10 Mar 24 Jul 7 – Aug 11 100–120
Celery Feb 17 Mar 10 Mar 24 Jun 16 – Aug 11 80–120
Celtuce Feb 17 Mar 10 Mar 24 May 26 – Jul 7 60–90
Chard Feb 17 Mar 10 Mar 24 May 19 – Jul 7 50–60
Chayote Feb 3 Mar 31 Apr 7 Aug 11 – Oct 20 120–180
Chickpeas Feb 17 Mar 10 Mar 24 Jun 16 – Jul 28 80–110
Chicory Feb 17 Mar 10 Mar 24 May 26 – Jul 7 60–85
Chinese Cabbage Feb 17 Mar 10 Mar 24 May 19 – Jun 16 50–70
Christmas Lima Beans Feb 3 Mar 31 Apr 7 Jun 30 – Aug 4 80–100
Collard Greens Feb 17 Mar 10 Mar 24 May 19 – Jul 21 55–75
Corn Mar 31 Jun 2 – Jul 28 60–100
Cowpeas Mar 31 Jun 2 – Jul 14 60–90
Cress Feb 17 Mar 10 Mar 24 Apr 7 – Apr 28 14–21
Crookneck Squash Feb 24 Mar 31 Apr 7 May 26 – Jun 23 45–60
Crosne Mar 10 Aug 11 – Oct 13 150–200
Cucumber Feb 24 Mar 31 Apr 7 Jun 2 – Jul 28 50–70
Daikon Mar 10 May 5 – Jun 2 50–70
Delicata Squash Feb 24 Mar 31 Apr 7 Jun 30 – Aug 4 80–100
Edamame Mar 31 Jun 16 – Jul 28 75–100
Eggplant Jan 20 Mar 31 Apr 7 Jun 16 – Aug 18 65–85
Endive Feb 17 Mar 10 Mar 24 May 12 – Jun 16 45–65
Escarole Feb 17 Mar 10 Mar 24 May 19 – Jun 16 50–70
Fava Beans Feb 17 Mar 10 Mar 24 Jun 9 – Jul 21 75–100
Fennel Feb 3 Mar 31 Apr 7 Jun 9 – Jul 21 60–90
Garlic 90–240
Green Beans Mar 31 May 26 – Jul 21 50–65
Horseradish Apr 7 Aug 11 – Oct 20 120–180
Hot Peppers Jan 20 Mar 31 Apr 7 Jun 16 – Sep 22 70–120
Hubbard Squash Feb 24 Mar 31 Apr 7 Jul 21 – Aug 25 100–120
Jicama Feb 3 Mar 31 Apr 7 Aug 11 – Oct 20 120–180
Kabocha Feb 24 Mar 31 Apr 7 Jul 7 – Aug 4 85–100
Kai Lan Feb 17 Mar 10 Mar 24 May 12 – Jun 9 45–60
Kale Feb 17 Mar 10 Mar 24 May 19 – Jul 14 50–70
Kidney Beans Mar 31 Jun 30 – Aug 4 85–110
Kohlrabi Feb 17 Mar 10 Mar 24 May 12 – Jun 16 45–65
Komatsuna Feb 17 Mar 10 Mar 24 Apr 28 – Jun 2 35–50
Leeks Feb 17 Mar 10 Mar 24 Jun 23 – Sep 8 90–150
Lentils Feb 17 Mar 10 Mar 24 Jun 16 – Jul 28 80–110
Lettuce Feb 17 Mar 10 Mar 24 Apr 28 – Jul 7 30–60
Lima Beans Mar 31 Jun 2 – Jul 14 60–90
Loofah Feb 3 Mar 31 Apr 7 Jul 21 – Sep 22 100–150
Luffa Feb 3 Mar 31 Apr 7 Jul 7 – Sep 22 90–150
Mache Feb 17 Mar 10 Mar 24 May 5 – Jun 9 40–60
Malabar Spinach Feb 3 Mar 31 Apr 7 Jun 2 – Jun 30 55–70
Melon Feb 24 Mar 31 Apr 7 Jun 16 – Aug 4 70–100
Microgreens Feb 17 Mar 10 Mar 24 Mar 31 – Apr 28 7–21
Mitsuba Feb 17 Mar 10 Mar 17 May 12 – Jul 7 50–70
Mizuna Feb 17 Mar 10 Mar 24 Apr 28 – May 26 30–45
Mustard Greens Feb 17 Mar 10 Mar 24 Apr 28 – Jun 30 30–50
Napa Cabbage Feb 17 Mar 10 Mar 24 May 19 – Jun 23 55–75
New Zealand Spinach Feb 3 Mar 31 Apr 7 Jun 2 – Jun 30 55–70
Okra Feb 3 Mar 31 Apr 7 Jun 2 – Jul 28 50–65
Onion Feb 17 Mar 10 Mar 24 Jun 23 – Aug 11 90–120
Pac Choi Feb 17 Mar 10 Mar 24 May 5 – Jun 2 40–55
Parsnip Mar 10 Jun 23 – Aug 4 100–130
Patty Pan Squash Feb 24 Mar 31 Apr 7 May 26 – Jun 23 45–60
Peas Feb 17 Mar 10 Mar 24 May 19 – Jul 14 55–70
Peppers Jan 20 Mar 31 Apr 7 Jun 9 – Aug 18 60–90
Pole Beans Feb 3 Mar 31 Apr 7 Jun 2 – Jul 28 55–70
Potatoes Feb 3 Mar 31 Apr 7 Jun 16 – Aug 25 70–120
Pumpkin Feb 24 Mar 31 Apr 7 Jul 7 – Aug 25 85–120
Purslane Feb 17 Mar 10 Mar 24 May 5 – Jun 9 40–60
Radicchio Feb 17 Mar 10 Mar 24 May 26 – Jun 30 60–80
Radish Mar 10 Apr 7 – Apr 28 22–35
Rhubarb Apr 14 365–730
Romanesco Feb 17 Mar 10 Mar 24 Jun 9 – Jul 21 75–100
Rutabaga Mar 10 Jun 2 – Jul 7 80–100
Salsify Mar 10 Jun 23 – Aug 4 100–130
Savoy Cabbage Feb 17 Mar 10 Mar 24 Jun 2 – Jul 28 70–110
Scallions Feb 17 Mar 10 Mar 24 May 19 – Jun 16 50–70
Scarlet Runner Beans Feb 3 Mar 31 Apr 7 Jun 9 – Jul 14 60–80
Shallot Feb 17 Mar 10 Mar 24 Jun 23 – Aug 11 90–120
Shiso Feb 3 Mar 31 Apr 7 Jun 2 – Jul 28 50–70
Snap Peas Feb 3 Mar 31 Apr 7 Jun 2 – Jul 28 55–70
Snow Peas Feb 17 Mar 10 Mar 24 May 19 – Jul 14 50–65
Soybeans Mar 31 Jun 23 – Aug 18 80–120
Spaghetti Squash Feb 24 Mar 31 Apr 7 Jul 7 – Aug 4 85–100
Spinach Feb 17 Mar 10 Mar 24 Apr 28 – Jun 30 35–50
Squash (Summer) Feb 24 Mar 31 Apr 7 May 26 – Jul 28 45–65
Squash (Winter) Feb 24 Mar 31 Apr 7 Jun 30 – Aug 25 80–120
Sunchoke Apr 7 Jul 28 – Sep 22 110–150
Sunflower Feb 3 Mar 31 Apr 7 Jun 16 – Aug 4 70–100
Sweet Corn Mar 31 Jun 2 – Jul 14 60–90
Sweet Potatoes Feb 3 Mar 31 Apr 7 Jul 7 – Aug 25 90–120
Tatsoi Feb 17 Mar 10 Mar 24 Apr 28 – Jun 2 35–50
Tomatillo Feb 3 Mar 31 Apr 7 Jun 9 – Aug 18 60–85
Tomatoes Feb 3 Mar 31 Apr 7 Jun 9 – Aug 18 60–85
Turnip Mar 10 Apr 21 – May 26 40–60
Watercress Feb 17 Mar 10 Mar 24 May 5 – Jun 9 40–60
Watermelon Feb 24 Mar 31 Apr 7 Jun 16 – Aug 4 70–100
Wax Beans Mar 31 May 26 – Jul 21 50–65
Winter Melon Feb 3 Mar 31 Apr 7 Jul 7 – Aug 25 90–120
Yard Long Beans Feb 3 Mar 31 Apr 7 Jun 2 – Jul 14 55–80
Zucchini Feb 24 Mar 31 Apr 7 May 26 – Jul 21 45–60

🍓 Fruits to Grow in Sterling County

31 fruits that grow well in Zone 7b with planting dates for Sterling County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Apr 14 Jul 14 – Oct 27 90–180
Aronia Apr 14 730–1095
Blackberries Apr 14 365–730
Blueberries Apr 14 730–1095
Boysenberries Apr 14 365–730
Cantaloupe Apr 14 Jun 23 – Jul 28 70–90
Che Fruit Apr 14 1095–1825
Cranberries Apr 14 730–1095
Currants Apr 14 730–1095
Elderberries Apr 14 730–1095
Figs Apr 14 730–1825
Goji Berries Apr 14 730–1095
Gooseberries Apr 14 730–1095
Grapes Apr 14 730–1095
Ground Cherry Apr 14 Jun 23 – Aug 18 65–80
Hardy Kiwi Apr 14 1095–1825
Haskaps Apr 14 730–1095
Honeydew Apr 14 Jul 7 – Aug 18 80–110
Jostaberry Apr 14 730–1095
Kiwi Apr 14 1095–1825
Lingonberries Apr 14 730–1095
Loquat Apr 14 730–1825
Medlar Apr 14 1095–1825
Mulberries Apr 14 730–1825
Pawpaw Apr 14 1095–2555
Persimmon Apr 14 1095–2555
Pomegranate Apr 14 730–1095
Quince Apr 14 1095–1825
Raspberries Apr 14 365–730
Serviceberries Apr 14 730–1095
Strawberries Apr 14 Jul 14 – Nov 24 90–365

🌿 Herbs to Grow in Sterling County

39 herbs that grow well in Zone 7b with planting dates for Sterling County.

Show all 39 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Feb 17 Mar 10 Mar 17 365–730
Anise Feb 17 Mar 10 Mar 17 Jun 16 – Sep 1 90–120
Basil Feb 3 Mar 31 Apr 7 Jun 2 – Aug 4 50–75
Bee Balm Mar 31 Jun 30 – Sep 15 90–120
Borage Feb 17 Mar 10 Mar 17 May 12 – Jun 30 50–60
Caraway Feb 17 Mar 10 Mar 17 365–450
Catnip Mar 31 Jun 2 – Aug 4 60–80
Chamomile Feb 17 Mar 10 Mar 17 May 19 – Jul 28 60–90
Chervil Feb 17 Mar 10 Mar 17 Apr 28 – Jun 30 40–60
Chives Mar 31 Jun 2 – Aug 11 60–90
Cilantro Feb 17 Mar 10 Mar 17 Apr 28 – Jun 30 40–60
Comfrey Mar 31 Jun 2 – Aug 11 60–90
Cumin Feb 17 Mar 10 Mar 17 Jun 30 – Sep 1 100–120
Dill Feb 17 Mar 10 Mar 17 Apr 28 – Jun 30 40–60
Echinacea Mar 31 Aug 4 – Nov 10 120–180
Epazote Feb 3 Mar 31 Apr 7 May 26 – Jul 21 45–60
Fennel (herb) Feb 17 Mar 10 Mar 17 May 19 – Jul 28 60–90
Feverfew Mar 31 Jun 30 – Sep 15 90–120
Garlic Chives Mar 31 Jun 2 – Aug 11 60–90
Horehound Mar 31 Jun 16 – Aug 11 75–90
Hyssop Mar 31 Jun 9 – Aug 11 70–90
Lavender Mar 31 Jun 30 – Nov 10 90–200
Lemon Balm Mar 31 Jun 2 – Jul 21 60–70
Lemon Thyme Mar 31 Jun 9 – Aug 11 70–90
Lovage Mar 31 Jun 9 – Aug 11 70–90
Marjoram Mar 31 Jun 2 – Aug 11 60–90
Mint Mar 31 Jun 2 – Aug 11 60–90
Oregano Mar 31 Jun 2 – Aug 11 60–90
Parsley Feb 17 Mar 10 Mar 17 May 19 – Jul 21 60–80
Rosemary Mar 31 Jun 23 – Nov 10 80–180
Rue Mar 31 Jun 9 – Aug 11 70–90
Sage Mar 31 Jun 16 – Aug 11 75–90
Savory Mar 31 May 26 – Jul 21 50–70
Sorrel Feb 17 Mar 10 Mar 17 Apr 28 – Jun 30 40–60
Tarragon Mar 31 Jun 2 – Aug 11 60–90
Thai Basil Feb 3 Mar 31 Apr 7 Jun 2 – Aug 4 50–75
Thyme Mar 31 Jun 9 – Aug 11 70–90
Valerian Mar 31 Aug 4 – Nov 10 120–180
Yarrow Mar 31 Jun 30 – Sep 15 90–120

Monthly Planting Guide for Sterling County

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Sterling County.

Frequently Asked Questions

What planting zone is Sterling County, TX?

Sterling 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 Sterling County, TX?

Based on 31 years of NOAA weather station data, the median last spring frost in Sterling County falls around March 24. In 8 out of 10 years, last frost lands between February 27 and April 14 — a 46-day window of variability. Use April 14 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Sterling County, TX?

The median first fall frost in Sterling County arrives around November 12. In cold years it can arrive as early as October 27; in mild years as late as November 28. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Sterling County?

Sterling County has a frost-free growing season of approximately 233 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 1.61 days per decade.

What is the soil like in Sterling County for gardening?

Sterling County has predominantly Sandy Loam soil with a pH range of 7.4–8.6 and 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 Sterling County?

Sterling County has commercial agriculture that includes Cotton, Cattle, Sorghum, Wheat, Corn. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is Sterling County a good location for home gardening?

Sterling County scores 45/100 (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 Sterling 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.

Level Up Your Garden

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Sterling County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.