Miller County, AR — Planting Guide
Miller County is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 12, giving you a growing season of approximately 236 days.
At an elevation of 266 ft, Miller County receives approximately 50.4 in of rainfall annually. Summer highs average 93°F with winter lows around 40°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 45 days year to year — ranging from February 28 in warm years to April 14 in cold years. Miller County scores 68/100 (Good) on the Microclimate Index.
🌡️ Zone
8a (10°F to 15°F min)
❄️ Last Frost
March 21
🍂 First Frost
November 12
📅 Growing Season
236 days
⛰️ Elevation
266 ft
🌧️ Annual Rainfall
50.4 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 3.7 in | 11 days | — | None |
| Feb | 3.3 in | 10 days | 1 in | Moderate |
| Mar | 5 in | 9 days | — | Low |
| Apr | 3.9 in | 6 days | 0.4 in | Low |
| May | 4 in | 8 days | 0.3 in | Low |
| Jun | 4.6 in | 9 days | — | Low |
| Jul | 5.7 in | 13 days | — | Low |
| Aug | 5.1 in | 11 days | — | Low |
| Sep | 4.1 in | 8 days | 0.2 in | Low |
| Oct | 3.4 in | 7 days | 0.9 in | Moderate |
| Nov | 4.1 in | 8 days | 0.2 in | Low |
| Dec | 3.5 in | 9 days | — | None |
Annual total: 50.4 in. Gardens typically need ~1 inch of water per week during the growing season. Months marked "None" for extra water are outside the active growing season for your zone — most gardens are dormant and don't need irrigation during those months.
Miller County Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-7.1
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 14 | Nov 29 | 229 days |
| Cautious | Apr 4 | Nov 16 | 226 days |
| Average year | Mar 21 | Nov 12 | 236 days |
| Optimistic | Mar 12 | Oct 31 | 233 days |
| Aggressive (risky) | Feb 28 | Oct 26 | 240 days |
Not very — frost dates can vary by ±45 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Gardening Difficulty Score
Miller County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Miller 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 Miller County's climate and soil.
County Extension Office
Miller County University of Arkansas Division of Agriculture Extension Extension Office
Phone: 501-671-2000
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 Miller County
Finding local nurseries & garden centers in Miller County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Miller 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 Miller County AR" or "garden center Miller 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 Miller County AR" or check your extension office and local parks department. Facebook groups like "Miller County Gardeners" or "Arkansas 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
14.2 hours
Summer solstice daylight
Shortest Day
9.8 hours
Winter solstice daylight
Peak Sun Hours
8.7 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 hr | 4.8 hr | Short day |
| February | 10.8 hr | 5.9 hr | Short day |
| March | 11.8 hr | 6.2 hr | Short day |
| April | 12.8 hr | 8 hr | Neutral |
| May | 13.7 hr | 8.7 hr | Neutral |
| June | 14.2 hr | 8.2 hr | Long day |
| July | 14 hr | 7.9 hr | Long day |
| August | 13.2 hr | 6.9 hr | Neutral |
| September | 12.2 hr | 7.2 hr | Neutral |
| October | 11.1 hr | 6.7 hr | Short day |
| November | 10.2 hr | 5.7 hr | Short day |
| December | 9.8 hr | 4.5 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 Apr through Nov.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
9 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 44°F | 54°F | 🐢 Slow | ~24 weeks |
| Feb | 45°F | 53°F | 🐢 Slow | ~24 weeks |
| Mar | 54°F | 55°F | ♻️ Active | ~14 weeks |
| Apr | 63°F | 61°F | ♻️ Active | ~14 weeks |
| May | 73°F | 70°F | 🔥 Peak | ~8 weeks |
| Jun | 84°F | 77°F | 🔥 Peak | ~8 weeks |
| Jul | 92°F | 86°F | 🔥 Peak | ~8 weeks |
| Aug | 93°F | 88°F | 🔥 Peak | ~8 weeks |
| Sep | 88°F | 85°F | 🔥 Peak | ~8 weeks |
| Oct | 75°F | 77°F | 🔥 Peak | ~8 weeks |
| Nov | 63°F | 67°F | ♻️ Active | ~14 weeks |
| Dec | 50°F | 58°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 Miller County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
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, Nov |
| Squash vine borers | High | May, Jun, Jul |
| Stink bugs | High | Apr, May, Jun, Jul, Aug, Sep, Oct |
| Whiteflies | Moderate | May, Jun, Jul, Aug, Sep, Oct |
| Spider mites | High | 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 Miller County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
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 2 | Feb 28 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 15 | Feb 28 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 14 | Mar 7 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 27 | Mar 7 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Oct 18 | Mar 7 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 3 | Feb 28 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 10 | Feb 28 | — | Erosion control, weed suppression, good biomass |
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 3 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Mar 26 | Sep 3 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Feb 24 | 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 21 | Oct 29 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 8 mph Summer: 8 mph
Fall: 7 mph Winter: 10 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
3.3/10
Low need — wind is not a major factor in your garden planning.
Frost Pocket Risk
Low
Relatively flat terrain (366 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
25,119 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 500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Mar, Jun, Jul, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, Oct, 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 50.4 inches of rain per year
- A 1,000 sq ft roof can collect roughly 25,119 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 Miller County
Soil Type
Silt Loam
Soil pH 5.3–7.1 · Moderately Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
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
236-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
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Miller County
115 vegetables that grow well in Zone 8a with planting dates for Miller County.
Show all 115 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Feb 21 | Mar 28 | Apr 4 | Jun 27 – Aug 1 | 80–100 |
| Amaranth | Jan 31 | Mar 28 | Apr 4 | Jul 4 – Aug 22 | 90–120 |
| Artichoke | — | — | Apr 4 | Aug 8 – Oct 17 | 120–180 |
| Arugula | Feb 14 | Mar 7 | Mar 21 | Apr 25 – Jun 27 | 30–50 |
| Asparagus | — | — | Apr 4 | — | 730–1095 |
| Beets | — | Mar 7 | — | May 2 – May 30 | 50–70 |
| Belgian Endive | Feb 14 | Mar 7 | Mar 21 | Jul 11 – Sep 5 | 110–150 |
| Bitter Melon | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Jul 18 | 60–90 |
| Black Beans | — | Mar 28 | — | Jun 27 – Aug 15 | 90–120 |
| Bok Choy | Feb 14 | Mar 7 | Mar 21 | May 2 – Jun 6 | 40–60 |
| Broccoli | Feb 14 | Mar 7 | Mar 21 | May 23 – Jul 4 | 60–90 |
| Broccoli Rabe | Feb 14 | Mar 7 | Mar 21 | May 2 – Jun 6 | 40–60 |
| Brussels Sprouts | Feb 14 | Mar 7 | Mar 21 | Jun 20 – Aug 15 | 90–130 |
| Butternut Squash | Feb 21 | Mar 28 | Apr 4 | Jul 4 – Aug 8 | 85–110 |
| Cabbage | Feb 14 | Mar 7 | Mar 21 | May 23 – Jul 18 | 60–100 |
| Calabash | Jan 31 | Mar 28 | Apr 4 | Jun 27 – Aug 22 | 80–120 |
| Cardoon | — | — | Apr 4 | Aug 8 – Sep 19 | 120–150 |
| Carrots | — | Mar 7 | — | May 9 – Jun 13 | 60–80 |
| Cauliflower | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 18 | 55–100 |
| Celeriac | Feb 14 | Mar 7 | Mar 21 | Jul 4 – Aug 8 | 100–120 |
| Celery | Feb 14 | Mar 7 | Mar 21 | Jun 13 – Aug 8 | 80–120 |
| Celtuce | Feb 14 | Mar 7 | Mar 21 | May 23 – Jul 4 | 60–90 |
| Chard | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 4 | 50–60 |
| Chayote | Jan 31 | Mar 28 | Apr 4 | Aug 8 – Oct 17 | 120–180 |
| Chickpeas | Feb 14 | Mar 7 | Mar 21 | Jun 13 – Jul 25 | 80–110 |
| Chicory | Feb 14 | Mar 7 | Mar 21 | May 23 – Jul 4 | 60–85 |
| Chinese Cabbage | Feb 14 | Mar 7 | Mar 21 | May 16 – Jun 13 | 50–70 |
| Christmas Lima Beans | Jan 31 | Mar 28 | Apr 4 | Jun 27 – Aug 1 | 80–100 |
| Collard Greens | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 18 | 55–75 |
| Corn | — | Mar 28 | — | May 30 – Jul 25 | 60–100 |
| Cowpeas | — | Mar 28 | — | May 30 – Jul 11 | 60–90 |
| Cress | Feb 14 | Mar 7 | Mar 21 | Apr 4 – Apr 25 | 14–21 |
| Crookneck Squash | Feb 21 | Mar 28 | Apr 4 | May 23 – Jun 20 | 45–60 |
| Crosne | — | Mar 7 | — | Aug 8 – Oct 10 | 150–200 |
| Cucumber | Feb 21 | Mar 28 | Apr 4 | May 30 – Jul 25 | 50–70 |
| Daikon | — | Mar 7 | — | May 2 – May 30 | 50–70 |
| Delicata Squash | Feb 21 | Mar 28 | Apr 4 | Jun 27 – Aug 1 | 80–100 |
| Edamame | — | Mar 28 | — | Jun 13 – Jul 25 | 75–100 |
| Eggplant | Jan 17 | Mar 28 | Apr 4 | Jun 13 – Aug 15 | 65–85 |
| Endive | Feb 14 | Mar 7 | Mar 21 | May 9 – Jun 13 | 45–65 |
| Escarole | Feb 14 | Mar 7 | Mar 21 | May 16 – Jun 13 | 50–70 |
| Fava Beans | Feb 14 | Mar 7 | Mar 21 | Jun 6 – Jul 18 | 75–100 |
| Fennel | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Jul 18 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Ginger | Jan 31 | Mar 28 | Apr 4 | Dec 5 – Dec 19 | 240–300 |
| Green Beans | — | Mar 28 | — | May 23 – Jul 18 | 50–65 |
| Horseradish | — | — | Apr 4 | Aug 8 – Oct 17 | 120–180 |
| Hot Peppers | Jan 17 | Mar 28 | Apr 4 | Jun 13 – Sep 19 | 70–120 |
| Hubbard Squash | Feb 21 | Mar 28 | Apr 4 | Jul 18 – Aug 22 | 100–120 |
| Jicama | Jan 31 | Mar 28 | Apr 4 | Aug 8 – Oct 17 | 120–180 |
| Kabocha | Feb 21 | Mar 28 | Apr 4 | Jul 4 – Aug 1 | 85–100 |
| Kai Lan | Feb 14 | Mar 7 | Mar 21 | May 9 – Jun 6 | 45–60 |
| Kale | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 11 | 50–70 |
| Kidney Beans | — | Mar 28 | — | Jun 27 – Aug 1 | 85–110 |
| Kohlrabi | Feb 14 | Mar 7 | Mar 21 | May 9 – Jun 13 | 45–65 |
| Komatsuna | Feb 14 | Mar 7 | Mar 21 | Apr 25 – May 30 | 35–50 |
| Leeks | Feb 14 | Mar 7 | Mar 21 | Jun 20 – Sep 5 | 90–150 |
| Lentils | Feb 14 | Mar 7 | Mar 21 | Jun 13 – Jul 25 | 80–110 |
| Lettuce | Feb 14 | Mar 7 | Mar 21 | Apr 25 – Jul 4 | 30–60 |
| Lima Beans | — | Mar 28 | — | May 30 – Jul 11 | 60–90 |
| Loofah | Jan 31 | Mar 28 | Apr 4 | Jul 18 – Sep 19 | 100–150 |
| Luffa | Jan 31 | Mar 28 | Apr 4 | Jul 4 – Sep 19 | 90–150 |
| Mache | Feb 14 | Mar 7 | Mar 21 | May 2 – Jun 6 | 40–60 |
| Malabar Spinach | Jan 31 | Mar 28 | Apr 4 | May 30 – Jun 27 | 55–70 |
| Melon | Feb 21 | Mar 28 | Apr 4 | Jun 13 – Aug 1 | 70–100 |
| Microgreens | Feb 14 | Mar 7 | Mar 21 | Mar 28 – Apr 25 | 7–21 |
| Mitsuba | Feb 14 | Mar 7 | Mar 14 | May 9 – Jul 4 | 50–70 |
| Mizuna | Feb 14 | Mar 7 | Mar 21 | Apr 25 – May 23 | 30–45 |
| Mustard Greens | Feb 14 | Mar 7 | Mar 21 | Apr 25 – Jun 27 | 30–50 |
| Napa Cabbage | Feb 14 | Mar 7 | Mar 21 | May 16 – Jun 20 | 55–75 |
| New Zealand Spinach | Jan 31 | Mar 28 | Apr 4 | May 30 – Jun 27 | 55–70 |
| Okra | Jan 31 | Mar 28 | Apr 4 | May 30 – Jul 25 | 50–65 |
| Onion | Feb 14 | Mar 7 | Mar 21 | Jun 20 – Aug 8 | 90–120 |
| Pac Choi | Feb 14 | Mar 7 | Mar 21 | May 2 – May 30 | 40–55 |
| Parsnip | — | Mar 7 | — | Jun 20 – Aug 1 | 100–130 |
| Patty Pan Squash | Feb 21 | Mar 28 | Apr 4 | May 23 – Jun 20 | 45–60 |
| Peas | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 11 | 55–70 |
| Peppers | Jan 17 | Mar 28 | Apr 4 | Jun 6 – Aug 15 | 60–90 |
| Pole Beans | Jan 31 | Mar 28 | Apr 4 | May 30 – Jul 25 | 55–70 |
| Potatoes | Jan 31 | Mar 28 | Apr 4 | Jun 13 – Aug 22 | 70–120 |
| Pumpkin | Feb 21 | Mar 28 | Apr 4 | Jul 4 – Aug 22 | 85–120 |
| Purslane | Feb 14 | Mar 7 | Mar 21 | May 2 – Jun 6 | 40–60 |
| Radicchio | Feb 14 | Mar 7 | Mar 21 | May 23 – Jun 27 | 60–80 |
| Radish | — | Mar 7 | — | Apr 4 – Apr 25 | 22–35 |
| Rhubarb | — | — | Apr 11 | — | 365–730 |
| Romanesco | Feb 14 | Mar 7 | Mar 21 | Jun 6 – Jul 18 | 75–100 |
| Rutabaga | — | Mar 7 | — | May 30 – Jul 4 | 80–100 |
| Salsify | — | Mar 7 | — | Jun 20 – Aug 1 | 100–130 |
| Savoy Cabbage | Feb 14 | Mar 7 | Mar 21 | May 30 – Jul 25 | 70–110 |
| Scallions | Feb 14 | Mar 7 | Mar 21 | May 16 – Jun 13 | 50–70 |
| Scarlet Runner Beans | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Jul 11 | 60–80 |
| Shallot | Feb 14 | Mar 7 | Mar 21 | Jun 20 – Aug 8 | 90–120 |
| Shiso | Jan 31 | Mar 28 | Apr 4 | May 30 – Jul 25 | 50–70 |
| Snap Peas | Jan 31 | Mar 28 | Apr 4 | May 30 – Jul 25 | 55–70 |
| Snow Peas | Feb 14 | Mar 7 | Mar 21 | May 16 – Jul 11 | 50–65 |
| Soybeans | — | Mar 28 | — | Jun 20 – Aug 15 | 80–120 |
| Spaghetti Squash | Feb 21 | Mar 28 | Apr 4 | Jul 4 – Aug 1 | 85–100 |
| Spinach | Feb 14 | Mar 7 | Mar 21 | Apr 25 – Jun 27 | 35–50 |
| Squash (Summer) | Feb 21 | Mar 28 | Apr 4 | May 23 – Jul 25 | 45–65 |
| Squash (Winter) | Feb 21 | Mar 28 | Apr 4 | Jun 27 – Aug 22 | 80–120 |
| Sunchoke | — | — | Apr 4 | Jul 25 – Sep 19 | 110–150 |
| Sunflower | Jan 31 | Mar 28 | Apr 4 | Jun 13 – Aug 1 | 70–100 |
| Sweet Corn | — | Mar 28 | — | May 30 – Jul 11 | 60–90 |
| Sweet Potatoes | Jan 31 | Mar 28 | Apr 4 | Jul 4 – Aug 22 | 90–120 |
| Tatsoi | Feb 14 | Mar 7 | Mar 21 | Apr 25 – May 30 | 35–50 |
| Tomatillo | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Aug 15 | 60–85 |
| Tomatoes | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Aug 15 | 60–85 |
| Turmeric | Jan 31 | Mar 28 | Apr 4 | Dec 5 – Dec 19 | 240–300 |
| Turnip | — | Mar 7 | — | Apr 18 – May 23 | 40–60 |
| Watercress | Feb 14 | Mar 7 | Mar 21 | May 2 – Jun 6 | 40–60 |
| Watermelon | Feb 21 | Mar 28 | Apr 4 | Jun 13 – Aug 1 | 70–100 |
| Wax Beans | — | Mar 28 | — | May 23 – Jul 18 | 50–65 |
| Winter Melon | Jan 31 | Mar 28 | Apr 4 | Jul 4 – Aug 22 | 90–120 |
| Yard Long Beans | Jan 31 | Mar 28 | Apr 4 | May 30 – Jul 11 | 55–80 |
| Zucchini | Feb 21 | Mar 28 | Apr 4 | May 23 – Jul 18 | 45–60 |
🍓 Fruits to Grow in Miller County
27 fruits that grow well in Zone 8a with planting dates for Miller County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 11 | Jul 11 – Oct 24 | 90–180 |
| Aronia | — | — | Apr 11 | — | 730–1095 |
| Blackberries | — | — | Apr 11 | — | 365–730 |
| Blueberries | — | — | Apr 11 | — | 730–1095 |
| Boysenberries | — | — | Apr 11 | — | 365–730 |
| Cantaloupe | — | — | Apr 11 | Jun 20 – Jul 25 | 70–90 |
| Che Fruit | — | — | Apr 11 | — | 1095–1825 |
| Elderberries | — | — | Apr 11 | — | 730–1095 |
| Figs | — | — | Apr 11 | — | 730–1825 |
| Goji Berries | — | — | Apr 11 | — | 730–1095 |
| Gooseberries | — | — | Apr 11 | — | 730–1095 |
| Grapes | — | — | Apr 11 | — | 730–1095 |
| Ground Cherry | — | — | Apr 11 | Jun 20 – Aug 15 | 65–80 |
| Hardy Kiwi | — | — | Apr 11 | — | 1095–1825 |
| Honeydew | — | — | Apr 11 | Jul 4 – Aug 15 | 80–110 |
| Jostaberry | — | — | Apr 11 | — | 730–1095 |
| Kiwi | — | — | Apr 11 | — | 1095–1825 |
| Loquat | — | — | Apr 11 | — | 730–1825 |
| Medlar | — | — | Apr 11 | — | 1095–1825 |
| Mulberries | — | — | Apr 11 | — | 730–1825 |
| Pawpaw | — | — | Apr 11 | — | 1095–2555 |
| Persimmon | — | — | Apr 11 | — | 1095–2555 |
| Pomegranate | — | — | Apr 11 | — | 730–1095 |
| Quince | — | — | Apr 11 | — | 1095–1825 |
| Raspberries | — | — | Apr 11 | — | 365–730 |
| Serviceberries | — | — | Apr 11 | — | 730–1095 |
| Strawberries | — | — | Apr 11 | Jul 11 – Dec 26 | 90–365 |
🌿 Herbs to Grow in Miller County
42 herbs that grow well in Zone 8a with planting dates for Miller County.
Show all 42 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Feb 14 | Mar 7 | Mar 14 | — | 365–730 |
| Anise | Feb 14 | Mar 7 | Mar 14 | Jun 13 – Aug 29 | 90–120 |
| Basil | Jan 31 | Mar 28 | Apr 4 | May 30 – Aug 1 | 50–75 |
| Bee Balm | — | — | Mar 28 | Jun 27 – Sep 12 | 90–120 |
| Borage | Feb 14 | Mar 7 | Mar 14 | May 9 – Jun 27 | 50–60 |
| Caraway | Feb 14 | Mar 7 | Mar 14 | — | 365–450 |
| Catnip | — | — | Mar 28 | May 30 – Aug 1 | 60–80 |
| Chamomile | Feb 14 | Mar 7 | Mar 14 | May 16 – Jul 25 | 60–90 |
| Chervil | Feb 14 | Mar 7 | Mar 14 | Apr 25 – Jun 27 | 40–60 |
| Chives | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Cilantro | Feb 14 | Mar 7 | Mar 14 | Apr 25 – Jun 27 | 40–60 |
| Comfrey | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Cumin | Feb 14 | Mar 7 | Mar 14 | Jun 27 – Aug 29 | 100–120 |
| Dill | Feb 14 | Mar 7 | Mar 14 | Apr 25 – Jun 27 | 40–60 |
| Echinacea | — | — | Mar 28 | Aug 1 – Nov 7 | 120–180 |
| Epazote | Jan 31 | Mar 28 | Apr 4 | May 23 – Jul 18 | 45–60 |
| Fennel (herb) | Feb 14 | Mar 7 | Mar 14 | May 16 – Jul 25 | 60–90 |
| Feverfew | — | — | Mar 28 | Jun 27 – Sep 12 | 90–120 |
| Garlic Chives | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Horehound | — | — | Mar 28 | Jun 13 – Aug 8 | 75–90 |
| Hyssop | — | — | Mar 28 | Jun 6 – Aug 8 | 70–90 |
| Lavender | — | — | Mar 28 | Jun 27 – Nov 28 | 90–200 |
| Lemon Balm | — | — | Mar 28 | May 30 – Jul 18 | 60–70 |
| Lemon Thyme | — | — | Mar 28 | Jun 6 – Aug 8 | 70–90 |
| Lemon Verbena | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Aug 15 | 60–90 |
| Lemongrass | Jan 31 | Mar 28 | Apr 4 | Jun 20 – Sep 19 | 75–120 |
| Lovage | — | — | Mar 28 | Jun 6 – Aug 8 | 70–90 |
| Marjoram | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Mint | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Oregano | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Parsley | Feb 14 | Mar 7 | Mar 14 | May 16 – Jul 18 | 60–80 |
| Rosemary | — | — | Mar 28 | Jun 20 – Nov 7 | 80–180 |
| Rue | — | — | Mar 28 | Jun 6 – Aug 8 | 70–90 |
| Sage | — | — | Mar 28 | Jun 13 – Aug 8 | 75–90 |
| Savory | — | — | Mar 28 | May 23 – Jul 18 | 50–70 |
| Sorrel | Feb 14 | Mar 7 | Mar 14 | Apr 25 – Jun 27 | 40–60 |
| Stevia | Jan 31 | Mar 28 | Apr 4 | Jun 6 – Aug 15 | 60–90 |
| Tarragon | — | — | Mar 28 | May 30 – Aug 8 | 60–90 |
| Thai Basil | Jan 31 | Mar 28 | Apr 4 | May 30 – Aug 1 | 50–75 |
| Thyme | — | — | Mar 28 | Jun 6 – Aug 8 | 70–90 |
| Valerian | — | — | Mar 28 | Aug 1 – Nov 7 | 120–180 |
| Yarrow | — | — | Mar 28 | Jun 27 – Sep 12 | 90–120 |
Monthly Planting Guide for Miller County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Miller County.
Frequently Asked Questions
What planting zone is Miller County, AR?
Miller 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 Miller County, AR?
Based on 31 years of NOAA weather station data, the median last spring frost in Miller County falls around March 21. In 8 out of 10 years, last frost lands between February 28 and April 14 — a 45-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 Miller County, AR?
The median first fall frost in Miller County arrives around November 12. In cold years it can arrive as early as October 26; in mild years as late as November 29. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Miller County?
Miller County has a frost-free growing season of approximately 236 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons.
What is the soil like in Miller County for gardening?
Miller County has predominantly Silt Loam soil with a pH range of 5.3–7.1 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Miller County?
Miller County has commercial agriculture that includes Soybeans, Poultry, Rice, Corn. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Miller County a good location for home gardening?
Miller County scores 68/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Miller County gardeners in Zone 8a 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.
