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Mills County, TX — Planting Guide

Mills County is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 12, giving you a growing season of approximately 234 days.

At an elevation of 4,208 ft, Mills County receives approximately 61.7 in of rainfall annually. Summer highs average 90°F with winter lows around 40°F. The predominant soil type is Loam.

Based on 29 years of NOAA climate station data, the last frost date here varies by 47 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 6.57 days per decade. Mills County scores 37/100 (Challenging) on the Microclimate Index.

🌡️ Zone

8a (10°F to 15°F min)

❄️ Last Frost

March 23

🍂 First Frost

November 12

📅 Growing Season

234 days

⛰️ Elevation

4,208 ft

🌧️ Annual Rainfall

61.7 in

Mills County, TX Long season
234 days
Last Spring Frost March 23
234 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" 2.6" 5.3" 7.9" 10.5" Jan 1.7" +1.9" Feb 2.4" Mar 3.8" Apr 6.2" May 10.5" Jun 9.5" Jul 7.5" Aug 7" Sep 5.6" Oct 4.2" +2.3" Nov 2" Dec 1.4"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.7 in 4 days None
Feb 2.4 in 4 days 1.9 in High
Mar 3.8 in 6 days 0.5 in Low
Apr 6.2 in 7 days Low
May 10.5 in 11 days Low
Jun 9.5 in 9 days Low
Jul 7.5 in 7 days Low
Aug 7 in 6 days Low
Sep 5.6 in 5 days Low
Oct 4.2 in 4 days 0.1 in Low
Nov 2 in 3 days 2.3 in High
Dec 1.4 in 4 days None

Annual total: 61.8 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.

Mills County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.6

Drainage

Well Drained

Frost Risk Probability

Based on 29 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Mar 23 → Nov 12 234 frost-free days Protect crops frost returns Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Apr 14 Protect by: Dec 1

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 Dec 1 231 days
Cautious Apr 5 Nov 22 231 days
Average year Mar 23 Nov 12 234 days
Optimistic Mar 12 Nov 4 237 days
Aggressive (risky) Feb 27 Oct 26 241 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±47 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 6.6 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

37 Challenging
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
1.0/10
Altitude Challenge
6.4/10
Climate Shift
10.0/10
Rainfall Challenge
6.7/10

Mills County has challenging growing conditions. Season extension and careful variety selection are essential.

Zone 8a Frost Countdown
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Loading...
Last Frost: Mar 23 First Frost: Nov 12

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

County Extension Office

Mills 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 Mills County

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

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Mills 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 Mills County TX" or "garden center Mills 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 Mills County TX" or check your extension office and local parks department. Facebook groups like "Mills 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 Green Beans (harvest ends Jul 13) 122 days until frost
After Sweet Potatoes (harvest ends Aug 24) 80 days until frost
After Sweet Corn (harvest ends Jul 6) 129 days until frost
After Zucchini (harvest ends Jul 20) 115 days until frost
Show 6 more succession options
After Potatoes (harvest ends Aug 24) 80 days until frost
After Snap Peas (harvest ends Jul 27) 108 days until frost
After Tomatoes (harvest ends Aug 17) 87 days until frost
After Chard (harvest ends Jul 6) 129 days until frost
After Beets (harvest ends Jun 15) 150 days until frost
After Carrots (harvest ends Jun 29) 136 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 hours

Summer solstice daylight

Shortest Day

10 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.

14hr 12hr 4h 7h 10h 12h 15h 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 10.2 hr 5.7 hr Short day
February 10.9 hr 6.4 hr Short day
March 11.8 hr 7.4 hr Short day
April 12.8 hr 7.9 hr Neutral
May 13.6 hr 8.3 hr Neutral
June 14 hr 9.6 hr Long day
July 13.9 hr 9.8 hr Neutral
August 13.2 hr 9 hr Neutral
September 12.2 hr 8.7 hr Neutral
October 11.2 hr 7.6 hr Short day
November 10.4 hr 5.9 hr Short day
December 10 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 35°F 42°F ❄️ Dormant ~36 weeks
Feb 37°F 41°F ❄️ Dormant ~36 weeks
Mar 42°F 45°F 🐢 Slow ~24 weeks
Apr 51°F 51°F ♻️ Active ~14 weeks
May 63°F 61°F ♻️ Active ~14 weeks
Jun 71°F 68°F 🔥 Peak ~8 weeks
Jul 79°F 73°F 🔥 Peak ~8 weeks
Aug 80°F 76°F 🔥 Peak ~8 weeks
Sep 74°F 73°F 🔥 Peak ~8 weeks
Oct 64°F 65°F ♻️ Active ~14 weeks
Nov 50°F 55°F 🐢 Slow ~24 weeks
Dec 38°F 47°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 Mills County

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

Insect Pest Pressure

7.5 / 10

High — expect multiple pest generations. Preventative measures essential.

Disease Risk

7.7 / 10

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

Seasonal Risk

Spring High
Summer High
Fall High
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Squash vine borers Moderate May, Jun, Jul
Stink bugs High Apr, May, Jun, Jul, Aug, Sep, Oct
Whiteflies High May, Jun, Jul, Aug, Sep, Oct
Spider mites Moderate Jun, Jul, Aug, Sep
Fire ants Low Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
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 Mills 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 29 Sep 10 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Mar 28 Sep 10 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Mar 27 Sep 3 Massive biomass, breaks compaction, suppresses nematodes
White clover Feb 25 Sep 10 ✓ 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 11 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 11 Mar 2 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Sep 5 Mar 9 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Oct 3 Mar 2 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Aug 21 Mar 2 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Oct 7 Mar 2 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Aug 13 Mar 9 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Aug 21 Mar 2 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: 19 mph   Summer: 13 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

8.9/10

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 (274 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

30,801 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

May, Jun, Jul, Aug

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Jan, Nov, Dec

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 61.8 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 30,801 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 Mills County

Soil Type

Loam

Soil pH 6.7–7.6 · Well Drained drainage

Good candidate for raised beds to maximise drainage and extend the season.

Watering Needs

Drought stress: 3.5/10

Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (61.7 in. annual rainfall)

Season Tips

234-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

🧪
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.

🍂
Organic Compost $8-30

Boost soil fertility and structure with rich, well-aged organic compost.

🥬 Vegetables to Grow in Mills County

115 vegetables that grow well in Zone 8a with planting dates for Mills County.

Show all 115 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Feb 23 Mar 30 Apr 6 Jun 29 – Aug 3 80–100
Amaranth Feb 2 Mar 30 Apr 6 Jul 6 – Aug 24 90–120
Artichoke Apr 6 Aug 10 – Oct 19 120–180
Arugula Feb 16 Mar 9 Mar 23 Apr 27 – Jun 29 30–50
Asparagus Apr 6 730–1095
Beets Mar 9 May 4 – Jun 1 50–70
Belgian Endive Feb 16 Mar 9 Mar 23 Jul 13 – Sep 7 110–150
Bitter Melon Feb 2 Mar 30 Apr 6 Jun 8 – Jul 20 60–90
Black Beans Mar 30 Jun 29 – Aug 17 90–120
Bok Choy Feb 16 Mar 9 Mar 23 May 4 – Jun 8 40–60
Broccoli Feb 16 Mar 9 Mar 23 May 25 – Jul 6 60–90
Broccoli Rabe Feb 16 Mar 9 Mar 23 May 4 – Jun 8 40–60
Brussels Sprouts Feb 16 Mar 9 Mar 23 Jun 22 – Aug 17 90–130
Butternut Squash Feb 23 Mar 30 Apr 6 Jul 6 – Aug 10 85–110
Cabbage Feb 16 Mar 9 Mar 23 May 25 – Jul 20 60–100
Calabash Feb 2 Mar 30 Apr 6 Jun 29 – Aug 24 80–120
Cardoon Apr 6 Aug 10 – Sep 21 120–150
Carrots Mar 9 May 11 – Jun 15 60–80
Cauliflower Feb 16 Mar 9 Mar 23 May 18 – Jul 20 55–100
Celeriac Feb 16 Mar 9 Mar 23 Jul 6 – Aug 10 100–120
Celery Feb 16 Mar 9 Mar 23 Jun 15 – Aug 10 80–120
Celtuce Feb 16 Mar 9 Mar 23 May 25 – Jul 6 60–90
Chard Feb 16 Mar 9 Mar 23 May 18 – Jul 6 50–60
Chayote Feb 2 Mar 30 Apr 6 Aug 10 – Oct 19 120–180
Chickpeas Feb 16 Mar 9 Mar 23 Jun 15 – Jul 27 80–110
Chicory Feb 16 Mar 9 Mar 23 May 25 – Jul 6 60–85
Chinese Cabbage Feb 16 Mar 9 Mar 23 May 18 – Jun 15 50–70
Christmas Lima Beans Feb 2 Mar 30 Apr 6 Jun 29 – Aug 3 80–100
Collard Greens Feb 16 Mar 9 Mar 23 May 18 – Jul 20 55–75
Corn Mar 30 Jun 1 – Jul 27 60–100
Cowpeas Mar 30 Jun 1 – Jul 13 60–90
Cress Feb 16 Mar 9 Mar 23 Apr 6 – Apr 27 14–21
Crookneck Squash Feb 23 Mar 30 Apr 6 May 25 – Jun 22 45–60
Crosne Mar 9 Aug 10 – Oct 12 150–200
Cucumber Feb 23 Mar 30 Apr 6 Jun 1 – Jul 27 50–70
Daikon Mar 9 May 4 – Jun 1 50–70
Delicata Squash Feb 23 Mar 30 Apr 6 Jun 29 – Aug 3 80–100
Edamame Mar 30 Jun 15 – Jul 27 75–100
Eggplant Jan 19 Mar 30 Apr 6 Jun 15 – Aug 17 65–85
Endive Feb 16 Mar 9 Mar 23 May 11 – Jun 15 45–65
Escarole Feb 16 Mar 9 Mar 23 May 18 – Jun 15 50–70
Fava Beans Feb 16 Mar 9 Mar 23 Jun 8 – Jul 20 75–100
Fennel Feb 2 Mar 30 Apr 6 Jun 8 – Jul 20 60–90
Garlic 90–240
Ginger Feb 2 Mar 30 Apr 6 Dec 7 – Dec 21 240–300
Green Beans Mar 30 May 25 – Jul 20 50–65
Horseradish Apr 6 Aug 10 – Oct 19 120–180
Hot Peppers Jan 19 Mar 30 Apr 6 Jun 15 – Sep 21 70–120
Hubbard Squash Feb 23 Mar 30 Apr 6 Jul 20 – Aug 24 100–120
Jicama Feb 2 Mar 30 Apr 6 Aug 10 – Oct 19 120–180
Kabocha Feb 23 Mar 30 Apr 6 Jul 6 – Aug 3 85–100
Kai Lan Feb 16 Mar 9 Mar 23 May 11 – Jun 8 45–60
Kale Feb 16 Mar 9 Mar 23 May 18 – Jul 13 50–70
Kidney Beans Mar 30 Jun 29 – Aug 3 85–110
Kohlrabi Feb 16 Mar 9 Mar 23 May 11 – Jun 15 45–65
Komatsuna Feb 16 Mar 9 Mar 23 Apr 27 – Jun 1 35–50
Leeks Feb 16 Mar 9 Mar 23 Jun 22 – Sep 7 90–150
Lentils Feb 16 Mar 9 Mar 23 Jun 15 – Jul 27 80–110
Lettuce Feb 16 Mar 9 Mar 23 Apr 27 – Jul 6 30–60
Lima Beans Mar 30 Jun 1 – Jul 13 60–90
Loofah Feb 2 Mar 30 Apr 6 Jul 20 – Sep 21 100–150
Luffa Feb 2 Mar 30 Apr 6 Jul 6 – Sep 21 90–150
Mache Feb 16 Mar 9 Mar 23 May 4 – Jun 8 40–60
Malabar Spinach Feb 2 Mar 30 Apr 6 Jun 1 – Jun 29 55–70
Melon Feb 23 Mar 30 Apr 6 Jun 15 – Aug 3 70–100
Microgreens Feb 16 Mar 9 Mar 23 Mar 30 – Apr 27 7–21
Mitsuba Feb 16 Mar 9 Mar 16 May 11 – Jul 6 50–70
Mizuna Feb 16 Mar 9 Mar 23 Apr 27 – May 25 30–45
Mustard Greens Feb 16 Mar 9 Mar 23 Apr 27 – Jun 29 30–50
Napa Cabbage Feb 16 Mar 9 Mar 23 May 18 – Jun 22 55–75
New Zealand Spinach Feb 2 Mar 30 Apr 6 Jun 1 – Jun 29 55–70
Okra Feb 2 Mar 30 Apr 6 Jun 1 – Jul 27 50–65
Onion Feb 16 Mar 9 Mar 23 Jun 22 – Aug 10 90–120
Pac Choi Feb 16 Mar 9 Mar 23 May 4 – Jun 1 40–55
Parsnip Mar 9 Jun 22 – Aug 3 100–130
Patty Pan Squash Feb 23 Mar 30 Apr 6 May 25 – Jun 22 45–60
Peas Feb 16 Mar 9 Mar 23 May 18 – Jul 13 55–70
Peppers Jan 19 Mar 30 Apr 6 Jun 8 – Aug 17 60–90
Pole Beans Feb 2 Mar 30 Apr 6 Jun 1 – Jul 27 55–70
Potatoes Feb 2 Mar 30 Apr 6 Jun 15 – Aug 24 70–120
Pumpkin Feb 23 Mar 30 Apr 6 Jul 6 – Aug 24 85–120
Purslane Feb 16 Mar 9 Mar 23 May 4 – Jun 8 40–60
Radicchio Feb 16 Mar 9 Mar 23 May 25 – Jun 29 60–80
Radish Mar 9 Apr 6 – Apr 27 22–35
Rhubarb Apr 13 365–730
Romanesco Feb 16 Mar 9 Mar 23 Jun 8 – Jul 20 75–100
Rutabaga Mar 9 Jun 1 – Jul 6 80–100
Salsify Mar 9 Jun 22 – Aug 3 100–130
Savoy Cabbage Feb 16 Mar 9 Mar 23 Jun 1 – Jul 27 70–110
Scallions Feb 16 Mar 9 Mar 23 May 18 – Jun 15 50–70
Scarlet Runner Beans Feb 2 Mar 30 Apr 6 Jun 8 – Jul 13 60–80
Shallot Feb 16 Mar 9 Mar 23 Jun 22 – Aug 10 90–120
Shiso Feb 2 Mar 30 Apr 6 Jun 1 – Jul 27 50–70
Snap Peas Feb 2 Mar 30 Apr 6 Jun 1 – Jul 27 55–70
Snow Peas Feb 16 Mar 9 Mar 23 May 18 – Jul 13 50–65
Soybeans Mar 30 Jun 22 – Aug 17 80–120
Spaghetti Squash Feb 23 Mar 30 Apr 6 Jul 6 – Aug 3 85–100
Spinach Feb 16 Mar 9 Mar 23 Apr 27 – Jun 29 35–50
Squash (Summer) Feb 23 Mar 30 Apr 6 May 25 – Jul 27 45–65
Squash (Winter) Feb 23 Mar 30 Apr 6 Jun 29 – Aug 24 80–120
Sunchoke Apr 6 Jul 27 – Sep 21 110–150
Sunflower Feb 2 Mar 30 Apr 6 Jun 15 – Aug 3 70–100
Sweet Corn Mar 30 Jun 1 – Jul 13 60–90
Sweet Potatoes Feb 2 Mar 30 Apr 6 Jul 6 – Aug 24 90–120
Tatsoi Feb 16 Mar 9 Mar 23 Apr 27 – Jun 1 35–50
Tomatillo Feb 2 Mar 30 Apr 6 Jun 8 – Aug 17 60–85
Tomatoes Feb 2 Mar 30 Apr 6 Jun 8 – Aug 17 60–85
Turmeric Feb 2 Mar 30 Apr 6 Dec 7 – Dec 21 240–300
Turnip Mar 9 Apr 20 – May 25 40–60
Watercress Feb 16 Mar 9 Mar 23 May 4 – Jun 8 40–60
Watermelon Feb 23 Mar 30 Apr 6 Jun 15 – Aug 3 70–100
Wax Beans Mar 30 May 25 – Jul 20 50–65
Winter Melon Feb 2 Mar 30 Apr 6 Jul 6 – Aug 24 90–120
Yard Long Beans Feb 2 Mar 30 Apr 6 Jun 1 – Jul 13 55–80
Zucchini Feb 23 Mar 30 Apr 6 May 25 – Jul 20 45–60

🍓 Fruits to Grow in Mills County

27 fruits that grow well in Zone 8a with planting dates for Mills County.

Show all 27 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Apr 13 Jul 13 – Oct 26 90–180
Aronia Apr 13 730–1095
Blackberries Apr 13 365–730
Blueberries Apr 13 730–1095
Boysenberries Apr 13 365–730
Cantaloupe Apr 13 Jun 22 – Jul 27 70–90
Che Fruit Apr 13 1095–1825
Elderberries Apr 13 730–1095
Figs Apr 13 730–1825
Goji Berries Apr 13 730–1095
Gooseberries Apr 13 730–1095
Grapes Apr 13 730–1095
Ground Cherry Apr 13 Jun 22 – Aug 17 65–80
Hardy Kiwi Apr 13 1095–1825
Honeydew Apr 13 Jul 6 – Aug 17 80–110
Jostaberry Apr 13 730–1095
Kiwi Apr 13 1095–1825
Loquat Apr 13 730–1825
Medlar Apr 13 1095–1825
Mulberries Apr 13 730–1825
Pawpaw Apr 13 1095–2555
Persimmon Apr 13 1095–2555
Pomegranate Apr 13 730–1095
Quince Apr 13 1095–1825
Raspberries Apr 13 365–730
Serviceberries Apr 13 730–1095
Strawberries Apr 13 Jul 13 – Dec 28 90–365

🌿 Herbs to Grow in Mills County

42 herbs that grow well in Zone 8a with planting dates for Mills County.

Show all 42 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Feb 16 Mar 9 Mar 16 365–730
Anise Feb 16 Mar 9 Mar 16 Jun 15 – Aug 31 90–120
Basil Feb 2 Mar 30 Apr 6 Jun 1 – Aug 3 50–75
Bee Balm Mar 30 Jun 29 – Sep 14 90–120
Borage Feb 16 Mar 9 Mar 16 May 11 – Jun 29 50–60
Caraway Feb 16 Mar 9 Mar 16 365–450
Catnip Mar 30 Jun 1 – Aug 3 60–80
Chamomile Feb 16 Mar 9 Mar 16 May 18 – Jul 27 60–90
Chervil Feb 16 Mar 9 Mar 16 Apr 27 – Jun 29 40–60
Chives Mar 30 Jun 1 – Aug 10 60–90
Cilantro Feb 16 Mar 9 Mar 16 Apr 27 – Jun 29 40–60
Comfrey Mar 30 Jun 1 – Aug 10 60–90
Cumin Feb 16 Mar 9 Mar 16 Jun 29 – Aug 31 100–120
Dill Feb 16 Mar 9 Mar 16 Apr 27 – Jun 29 40–60
Echinacea Mar 30 Aug 3 – Nov 9 120–180
Epazote Feb 2 Mar 30 Apr 6 May 25 – Jul 20 45–60
Fennel (herb) Feb 16 Mar 9 Mar 16 May 18 – Jul 27 60–90
Feverfew Mar 30 Jun 29 – Sep 14 90–120
Garlic Chives Mar 30 Jun 1 – Aug 10 60–90
Horehound Mar 30 Jun 15 – Aug 10 75–90
Hyssop Mar 30 Jun 8 – Aug 10 70–90
Lavender Mar 30 Jun 29 – Nov 30 90–200
Lemon Balm Mar 30 Jun 1 – Jul 20 60–70
Lemon Thyme Mar 30 Jun 8 – Aug 10 70–90
Lemon Verbena Feb 2 Mar 30 Apr 6 Jun 8 – Aug 17 60–90
Lemongrass Feb 2 Mar 30 Apr 6 Jun 22 – Sep 21 75–120
Lovage Mar 30 Jun 8 – Aug 10 70–90
Marjoram Mar 30 Jun 1 – Aug 10 60–90
Mint Mar 30 Jun 1 – Aug 10 60–90
Oregano Mar 30 Jun 1 – Aug 10 60–90
Parsley Feb 16 Mar 9 Mar 16 May 18 – Jul 20 60–80
Rosemary Mar 30 Jun 22 – Nov 9 80–180
Rue Mar 30 Jun 8 – Aug 10 70–90
Sage Mar 30 Jun 15 – Aug 10 75–90
Savory Mar 30 May 25 – Jul 20 50–70
Sorrel Feb 16 Mar 9 Mar 16 Apr 27 – Jun 29 40–60
Stevia Feb 2 Mar 30 Apr 6 Jun 8 – Aug 17 60–90
Tarragon Mar 30 Jun 1 – Aug 10 60–90
Thai Basil Feb 2 Mar 30 Apr 6 Jun 1 – Aug 3 50–75
Thyme Mar 30 Jun 8 – Aug 10 70–90
Valerian Mar 30 Aug 3 – Nov 9 120–180
Yarrow Mar 30 Jun 29 – Sep 14 90–120

Monthly Planting Guide for Mills County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Mills County, TX?

Mills County is in USDA Hardiness Zone 8a. 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 Mills County, TX?

Based on 29 years of NOAA weather station data, the median last spring frost in Mills County falls around March 23. In 8 out of 10 years, last frost lands between February 27 and April 14 — a 47-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 Mills County, TX?

The median first fall frost in Mills County arrives around November 12. In cold years it can arrive as early as October 26; in mild years as late as December 1. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Mills County?

Mills County has a frost-free growing season of approximately 234 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 6.57 days per decade.

What is the soil like in Mills County for gardening?

Mills County has predominantly Loam soil with a pH range of 6.7–7.6 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Mills County?

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

Is Mills County a good location for home gardening?

Mills County scores 37/100 (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 Mills County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Mills County (29 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.