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Roberts County, TX — Planting Guide

Roberts County is in USDA Zone 7a. The average last spring frost is April 17 and the first fall frost is October 24, giving you a growing season of approximately 190 days.

At an elevation of 1,068 ft, Roberts County receives approximately 51 in of rainfall annually. Summer highs average 98°F with winter lows around 31°F. The predominant soil type is Sandy Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 29 days year to year — ranging from April 3 in warm years to May 2 in cold years. The growing season is trending longer by about 3.01 days per decade. Roberts County scores 48/100 (Moderate) on the Microclimate Index.

🌡️ Zone

7a (0°F to 5°F min)

❄️ Last Frost

April 17

🍂 First Frost

October 24

📅 Growing Season

190 days

⛰️ Elevation

1,068 ft

🌧️ Annual Rainfall

51 in

Roberts County, TX Moderate season
190 days
Last Spring Frost April 17
190 growing days
First Fall Frost October 24

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" 4.8" 7.1" 9.5" Jan 3.5" Feb 3.3" +1.4" Mar 2.9" +2.4" Apr 1.9" +3.2" May 1.1" +2.8" Jun 1.5" Jul 9.3" Aug 9.5" Sep 6.3" Oct 5" Nov 3.3" 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 3.3 in 2 days None
Mar 2.9 in 1 days 1.4 in Moderate
Apr 1.9 in 0 days 2.4 in High
May 1.1 in 1 days 3.2 in Critical
Jun 1.5 in 2 days 2.8 in High
Jul 9.3 in 6 days Low
Aug 9.5 in 7 days Low
Sep 6.3 in 4 days Low
Oct 5 in 3 days Low
Nov 3.3 in 2 days None
Dec 3.3 in 3 days None

Annual total: 50.9 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.

Roberts County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.8

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 Apr 17 → Oct 24 190 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 2 Protect by: Nov 5

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 2 Nov 5 187 days
Cautious Apr 25 Oct 27 185 days
Average year Apr 17 Oct 24 190 days
Optimistic Apr 11 Oct 17 189 days
Aggressive (risky) Apr 3 Oct 7 187 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±29 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 3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

48 Moderate
Frost Timing Risk
10.0/10
Drought Risk
5.5/10
Soil Difficulty
3.0/10
Altitude Challenge
0.1/10
Climate Shift
10.0/10
Rainfall Challenge
2.4/10

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

Zone 7a Frost Countdown
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Last Frost: Apr 17 First Frost: Oct 24

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

County Extension Office

Roberts 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 Roberts County

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

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Roberts 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 Roberts County TX" or "garden center Roberts 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 Roberts County TX" or check your extension office and local parks department. Facebook groups like "Roberts 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.

After Cantaloupe (harvest ends Aug 21) 64 days until frost
After Snap Peas (harvest ends Aug 21) 64 days until frost
After Squash (Summer) (harvest ends Aug 21) 64 days until frost
After Green Beans (harvest ends Aug 7) 78 days until frost
After Cauliflower (harvest ends Aug 14) 71 days until frost
Show 6 more succession options
After Basil (harvest ends Aug 28) 57 days until frost
After Pole Beans (harvest ends Aug 21) 64 days until frost
After Okra (harvest ends Aug 21) 64 days until frost
After Spinach (harvest ends Jul 24) 92 days until frost
After Potatoes (harvest ends Sep 18) 36 days until frost
After Beets (harvest ends Jul 10) 106 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

14.4 hours

Summer solstice daylight

Shortest Day

9.6 hours

Winter solstice daylight

Peak Sun Hours

10.4 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 9.8 hr 5.4 hr Short day
February 10.7 hr 6.5 hr Short day
March 11.7 hr 7.3 hr Short day
April 12.9 hr 7.7 hr Neutral
May 13.9 hr 8.5 hr Neutral
June 14.4 hr 9.4 hr Long day
July 14.2 hr 10.4 hr Long day
August 13.4 hr 9.3 hr Neutral
September 12.2 hr 8.1 hr Neutral
October 11.1 hr 7.3 hr Short day
November 10.1 hr 5.6 hr Short day
December 9.6 hr 5.5 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

8 months

Nearly year-round composting.

60°F 70°F 20° 40° 60° 80° 100° 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 38°F 47°F ❄️ Dormant ~36 weeks
Feb 40°F 43°F 🐢 Slow ~24 weeks
Mar 46°F 47°F 🐢 Slow ~24 weeks
Apr 58°F 56°F ♻️ Active ~14 weeks
May 67°F 66°F 🔥 Peak ~8 weeks
Jun 76°F 75°F 🔥 Peak ~8 weeks
Jul 86°F 79°F 🔥 Peak ~8 weeks
Aug 85°F 82°F 🔥 Peak ~8 weeks
Sep 79°F 78°F 🔥 Peak ~8 weeks
Oct 70°F 71°F 🔥 Peak ~8 weeks
Nov 57°F 61°F ♻️ Active ~14 weeks
Dec 43°F 52°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 Roberts County

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

Insect Pest Pressure

6.3 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

7.9 / 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 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 Roberts 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 29 Aug 29 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Apr 23 Aug 15 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Apr 23 Aug 15 Massive biomass, breaks compaction, suppresses nematodes
White clover Mar 17 Aug 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 May 11 Oct 3 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 23 Apr 3 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Aug 15 Apr 3 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Sep 5 Apr 3 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 29 Mar 27 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 9 Apr 3 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 28 Mar 27 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Aug 1 Mar 27 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: 13 mph

Fall: 14 mph   Winter: 14 mph

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

Windbreak Benefit

8.9/10

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 (115 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

25,368 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 50.9 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 25,368 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 Roberts County

Soil Type

Sandy Loam

Soil pH 7.5–8.8 · Well Drained drainage

Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.

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

190-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 Roberts County

113 vegetables that grow well in Zone 7a with planting dates for Roberts County.

Show all 113 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Mar 20 Apr 24 May 1 Jul 24 – Aug 28 80–100
Amaranth Feb 27 Apr 24 May 1 Jul 31 – Sep 18 90–120
Artichoke May 1 Sep 4 – Nov 13 120–180
Arugula Mar 13 Apr 3 Apr 17 May 22 – Jul 24 30–50
Asparagus May 1 730–1095
Beets Apr 3 May 29 – Jun 26 50–70
Belgian Endive Mar 13 Apr 3 Apr 17 Aug 7 – Oct 2 110–150
Bitter Melon Feb 27 Apr 24 May 1 Jul 3 – Aug 14 60–90
Black Beans Apr 24 Jul 24 – Sep 11 90–120
Bok Choy Mar 13 Apr 3 Apr 17 May 29 – Jul 3 40–60
Broccoli Mar 13 Apr 3 Apr 17 Jun 19 – Jul 31 60–90
Broccoli Rabe Mar 13 Apr 3 Apr 17 May 29 – Jul 3 40–60
Brussels Sprouts Mar 13 Apr 3 Apr 17 Jul 17 – Sep 11 90–130
Butternut Squash Mar 20 Apr 24 May 1 Jul 31 – Sep 4 85–110
Cabbage Mar 13 Apr 3 Apr 17 Jun 19 – Aug 14 60–100
Calabash Feb 27 Apr 24 May 1 Jul 24 – Sep 18 80–120
Cardoon May 1 Sep 4 – Oct 16 120–150
Carrots Apr 3 Jun 5 – Jul 10 60–80
Cauliflower Mar 13 Apr 3 Apr 17 Jun 12 – Aug 14 55–100
Celeriac Mar 13 Apr 3 Apr 17 Jul 31 – Sep 4 100–120
Celery Mar 13 Apr 3 Apr 17 Jul 10 – Sep 4 80–120
Celtuce Mar 13 Apr 3 Apr 17 Jun 19 – Jul 31 60–90
Chard Mar 13 Apr 3 Apr 17 Jun 12 – Jul 31 50–60
Chayote Feb 27 Apr 24 May 1 Sep 4 – Nov 13 120–180
Chickpeas Mar 13 Apr 3 Apr 17 Jul 10 – Aug 21 80–110
Chicory Mar 13 Apr 3 Apr 17 Jun 19 – Jul 31 60–85
Chinese Cabbage Mar 13 Apr 3 Apr 17 Jun 12 – Jul 10 50–70
Christmas Lima Beans Feb 27 Apr 24 May 1 Jul 24 – Aug 28 80–100
Collard Greens Mar 13 Apr 3 Apr 17 Jun 12 – Aug 14 55–75
Corn Apr 24 Jun 26 – Aug 21 60–100
Cowpeas Apr 24 Jun 26 – Aug 7 60–90
Cress Mar 13 Apr 3 Apr 17 May 1 – May 22 14–21
Crookneck Squash Mar 20 Apr 24 May 1 Jun 19 – Jul 17 45–60
Crosne Apr 3 Sep 4 – Nov 6 150–200
Cucumber Mar 20 Apr 24 May 1 Jun 26 – Aug 21 50–70
Daikon Apr 3 May 29 – Jun 26 50–70
Delicata Squash Mar 20 Apr 24 May 1 Jul 24 – Aug 28 80–100
Edamame Apr 24 Jul 10 – Aug 21 75–100
Eggplant Feb 13 Apr 24 May 1 Jul 10 – Sep 11 65–85
Endive Mar 13 Apr 3 Apr 17 Jun 5 – Jul 10 45–65
Escarole Mar 13 Apr 3 Apr 17 Jun 12 – Jul 10 50–70
Fava Beans Mar 13 Apr 3 Apr 17 Jul 3 – Aug 14 75–100
Fennel Feb 27 Apr 24 May 1 Jul 3 – Aug 14 60–90
Garlic 90–240
Green Beans Apr 24 Jun 19 – Aug 14 50–65
Horseradish May 1 Sep 4 – Nov 13 120–180
Hot Peppers Feb 13 Apr 24 May 1 Jul 10 – Oct 16 70–120
Hubbard Squash Mar 20 Apr 24 May 1 Aug 14 – Sep 18 100–120
Jicama Feb 27 Apr 24 May 1 Sep 4 – Nov 13 120–180
Kabocha Mar 20 Apr 24 May 1 Jul 31 – Aug 28 85–100
Kai Lan Mar 13 Apr 3 Apr 17 Jun 5 – Jul 3 45–60
Kale Mar 13 Apr 3 Apr 17 Jun 12 – Aug 7 50–70
Kidney Beans Apr 24 Jul 24 – Aug 28 85–110
Kohlrabi Mar 13 Apr 3 Apr 17 Jun 5 – Jul 10 45–65
Komatsuna Mar 13 Apr 3 Apr 17 May 22 – Jun 26 35–50
Leeks Mar 13 Apr 3 Apr 17 Jul 17 – Oct 2 90–150
Lentils Mar 13 Apr 3 Apr 17 Jul 10 – Aug 21 80–110
Lettuce Mar 13 Apr 3 Apr 17 May 22 – Jul 31 30–60
Lima Beans Apr 24 Jun 26 – Aug 7 60–90
Loofah Feb 27 Apr 24 May 1 Aug 14 – Oct 16 100–150
Luffa Feb 27 Apr 24 May 1 Jul 31 – Oct 16 90–150
Mache Mar 13 Apr 3 Apr 17 May 29 – Jul 3 40–60
Malabar Spinach Feb 27 Apr 24 May 1 Jun 26 – Jul 24 55–70
Melon Mar 20 Apr 24 May 1 Jul 10 – Aug 28 70–100
Microgreens Mar 13 Apr 3 Apr 17 Apr 24 – May 22 7–21
Mitsuba Mar 13 Apr 3 Apr 10 Jun 5 – Jul 31 50–70
Mizuna Mar 13 Apr 3 Apr 17 May 22 – Jun 19 30–45
Mustard Greens Mar 13 Apr 3 Apr 17 May 22 – Jul 24 30–50
Napa Cabbage Mar 13 Apr 3 Apr 17 Jun 12 – Jul 17 55–75
New Zealand Spinach Feb 27 Apr 24 May 1 Jun 26 – Jul 24 55–70
Okra Feb 27 Apr 24 May 1 Jun 26 – Aug 21 50–65
Onion Mar 13 Apr 3 Apr 17 Jul 17 – Sep 4 90–120
Pac Choi Mar 13 Apr 3 Apr 17 May 29 – Jun 26 40–55
Parsnip Apr 3 Jul 17 – Aug 28 100–130
Patty Pan Squash Mar 20 Apr 24 May 1 Jun 19 – Jul 17 45–60
Peas Mar 13 Apr 3 Apr 17 Jun 12 – Aug 7 55–70
Peppers Feb 13 Apr 24 May 1 Jul 3 – Sep 11 60–90
Pole Beans Feb 27 Apr 24 May 1 Jun 26 – Aug 21 55–70
Potatoes Feb 27 Apr 24 May 1 Jul 10 – Sep 18 70–120
Pumpkin Mar 20 Apr 24 May 1 Jul 31 – Sep 18 85–120
Purslane Mar 13 Apr 3 Apr 17 May 29 – Jul 3 40–60
Radicchio Mar 13 Apr 3 Apr 17 Jun 19 – Jul 24 60–80
Radish Apr 3 May 1 – May 22 22–35
Rhubarb May 8 365–730
Romanesco Mar 13 Apr 3 Apr 17 Jul 3 – Aug 14 75–100
Rutabaga Apr 3 Jun 26 – Jul 31 80–100
Salsify Apr 3 Jul 17 – Aug 28 100–130
Savoy Cabbage Mar 13 Apr 3 Apr 17 Jun 26 – Aug 21 70–110
Scallions Mar 13 Apr 3 Apr 17 Jun 12 – Jul 10 50–70
Scarlet Runner Beans Feb 27 Apr 24 May 1 Jul 3 – Aug 7 60–80
Shallot Mar 13 Apr 3 Apr 17 Jul 17 – Sep 4 90–120
Shiso Feb 27 Apr 24 May 1 Jun 26 – Aug 21 50–70
Snap Peas Feb 27 Apr 24 May 1 Jun 26 – Aug 21 55–70
Snow Peas Mar 13 Apr 3 Apr 17 Jun 12 – Aug 7 50–65
Soybeans Apr 24 Jul 17 – Sep 11 80–120
Spaghetti Squash Mar 20 Apr 24 May 1 Jul 31 – Aug 28 85–100
Spinach Mar 13 Apr 3 Apr 17 May 22 – Jul 24 35–50
Squash (Summer) Mar 20 Apr 24 May 1 Jun 19 – Aug 21 45–65
Squash (Winter) Mar 20 Apr 24 May 1 Jul 24 – Sep 18 80–120
Sunchoke May 1 Aug 21 – Oct 16 110–150
Sunflower Feb 27 Apr 24 May 1 Jul 10 – Aug 28 70–100
Sweet Corn Apr 24 Jun 26 – Aug 7 60–90
Sweet Potatoes Feb 27 Apr 24 May 1 Jul 31 – Sep 18 90–120
Tatsoi Mar 13 Apr 3 Apr 17 May 22 – Jun 26 35–50
Tomatillo Feb 27 Apr 24 May 1 Jul 3 – Sep 11 60–85
Tomatoes Feb 27 Apr 24 May 1 Jul 3 – Sep 11 60–85
Turnip Apr 3 May 15 – Jun 19 40–60
Watercress Mar 13 Apr 3 Apr 17 May 29 – Jul 3 40–60
Watermelon Mar 20 Apr 24 May 1 Jul 10 – Aug 28 70–100
Wax Beans Apr 24 Jun 19 – Aug 14 50–65
Winter Melon Feb 27 Apr 24 May 1 Jul 31 – Sep 18 90–120
Yard Long Beans Feb 27 Apr 24 May 1 Jun 26 – Aug 7 55–80
Zucchini Mar 20 Apr 24 May 1 Jun 19 – Aug 14 45–60

🍓 Fruits to Grow in Roberts County

31 fruits that grow well in Zone 7a with planting dates for Roberts County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries May 8 Aug 7 – Nov 20 90–180
Aronia May 8 730–1095
Blackberries May 8 365–730
Blueberries May 8 730–1095
Boysenberries May 8 365–730
Cantaloupe May 8 Jul 17 – Aug 21 70–90
Che Fruit May 8 1095–1825
Cranberries May 8 730–1095
Currants May 8 730–1095
Elderberries May 8 730–1095
Figs May 8 730–1825
Goji Berries May 8 730–1095
Gooseberries May 8 730–1095
Grapes May 8 730–1095
Ground Cherry May 8 Jul 17 – Sep 11 65–80
Hardy Kiwi May 8 1095–1825
Haskaps May 8 730–1095
Honeydew May 8 Jul 31 – Sep 11 80–110
Jostaberry May 8 730–1095
Kiwi May 8 1095–1825
Lingonberries May 8 730–1095
Loquat May 8 730–1825
Medlar May 8 1095–1825
Mulberries May 8 730–1825
Pawpaw May 8 1095–2555
Persimmon May 8 1095–2555
Pomegranate May 8 730–1095
Quince May 8 1095–1825
Raspberries May 8 365–730
Serviceberries May 8 730–1095
Strawberries May 8 Aug 7 – Dec 18 90–365

🌿 Herbs to Grow in Roberts County

39 herbs that grow well in Zone 7a with planting dates for Roberts County.

Show all 39 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Mar 13 Apr 3 Apr 10 365–730
Anise Mar 13 Apr 3 Apr 10 Jul 10 – Sep 25 90–120
Basil Feb 27 Apr 24 May 1 Jun 26 – Aug 28 50–75
Bee Balm Apr 24 Jul 24 – Oct 9 90–120
Borage Mar 13 Apr 3 Apr 10 Jun 5 – Jul 24 50–60
Caraway Mar 13 Apr 3 Apr 10 365–450
Catnip Apr 24 Jun 26 – Aug 28 60–80
Chamomile Mar 13 Apr 3 Apr 10 Jun 12 – Aug 21 60–90
Chervil Mar 13 Apr 3 Apr 10 May 22 – Jul 24 40–60
Chives Apr 24 Jun 26 – Sep 4 60–90
Cilantro Mar 13 Apr 3 Apr 10 May 22 – Jul 24 40–60
Comfrey Apr 24 Jun 26 – Sep 4 60–90
Cumin Mar 13 Apr 3 Apr 10 Jul 24 – Sep 25 100–120
Dill Mar 13 Apr 3 Apr 10 May 22 – Jul 24 40–60
Echinacea Apr 24 Aug 28 – Dec 4 120–180
Epazote Feb 27 Apr 24 May 1 Jun 19 – Aug 14 45–60
Fennel (herb) Mar 13 Apr 3 Apr 10 Jun 12 – Aug 21 60–90
Feverfew Apr 24 Jul 24 – Oct 9 90–120
Garlic Chives Apr 24 Jun 26 – Sep 4 60–90
Horehound Apr 24 Jul 10 – Sep 4 75–90
Hyssop Apr 24 Jul 3 – Sep 4 70–90
Lavender Apr 24 Jul 24 – Dec 4 90–200
Lemon Balm Apr 24 Jun 26 – Aug 14 60–70
Lemon Thyme Apr 24 Jul 3 – Sep 4 70–90
Lovage Apr 24 Jul 3 – Sep 4 70–90
Marjoram Apr 24 Jun 26 – Sep 4 60–90
Mint Apr 24 Jun 26 – Sep 4 60–90
Oregano Apr 24 Jun 26 – Sep 4 60–90
Parsley Mar 13 Apr 3 Apr 10 Jun 12 – Aug 14 60–80
Rosemary Apr 24 Jul 17 – Dec 4 80–180
Rue Apr 24 Jul 3 – Sep 4 70–90
Sage Apr 24 Jul 10 – Sep 4 75–90
Savory Apr 24 Jun 19 – Aug 14 50–70
Sorrel Mar 13 Apr 3 Apr 10 May 22 – Jul 24 40–60
Tarragon Apr 24 Jun 26 – Sep 4 60–90
Thai Basil Feb 27 Apr 24 May 1 Jun 26 – Aug 28 50–75
Thyme Apr 24 Jul 3 – Sep 4 70–90
Valerian Apr 24 Aug 28 – Dec 4 120–180
Yarrow Apr 24 Jul 24 – Oct 9 90–120

Monthly Planting Guide for Roberts County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Roberts County, TX?

Roberts 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 Roberts County, TX?

Based on 31 years of NOAA weather station data, the median last spring frost in Roberts County falls around April 17. In 8 out of 10 years, last frost lands between April 3 and May 2 — a 29-day window of variability. Use May 2 as your conservative safe-to-plant date for frost-sensitive crops.

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

The median first fall frost in Roberts County arrives around October 24. In cold years it can arrive as early as October 7; in mild years as late as November 5. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Roberts County?

Roberts County has a frost-free growing season of approximately 190 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 3.01 days per decade.

What is the soil like in Roberts County for gardening?

Roberts County has predominantly Sandy Loam soil with a pH range of 7.5–8.8 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 Roberts County?

Roberts 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 Roberts County a good location for home gardening?

Roberts County scores 48/100 (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 Roberts 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.

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 Roberts County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.