Millard County, UT — Planting Guide
Millard County is in USDA Zone 5b. The average last spring frost is May 16 and the first fall frost is September 30, giving you a growing season of approximately 137 days.
At an elevation of 6,525 ft, Millard County receives approximately 24 in of rainfall annually. Summer highs average 84°F with winter lows around 19°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 43 days year to year — ranging from April 27 in warm years to June 9 in cold years. The growing season is trending longer by about 1.25 days per decade. Millard County scores 40/100 (Moderate) on the Microclimate Index.
🌡️ Zone
5b (-15°F to -10°F min)
❄️ Last Frost
May 16
🍂 First Frost
September 30
📅 Growing Season
137 days
⛰️ Elevation
6,525 ft
🌧️ Annual Rainfall
24 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 | 1.8 in | 7 days | — | None |
| Feb | 1.5 in | 5 days | — | None |
| Mar | 2 in | 8 days | — | None |
| Apr | 2.7 in | 7 days | 1.6 in | High |
| May | 2.7 in | 7 days | 1.6 in | High |
| Jun | 1.7 in | 4 days | 2.6 in | High |
| Jul | 2.1 in | 5 days | 2.2 in | High |
| Aug | 2.2 in | 6 days | 2.1 in | High |
| Sep | 2 in | 5 days | 2.3 in | High |
| Oct | 2.2 in | 5 days | 2.1 in | High |
| Nov | 1.6 in | 6 days | — | None |
| Dec | 1.5 in | 7 days | — | None |
Annual total: 24 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.
Millard County Soil Profile
Soil Type
Loam
Soil pH
6.5-8
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) | Jun 9 | Oct 18 | 131 days |
| Cautious | May 25 | Oct 7 | 135 days |
| Average year | May 16 | Sep 30 | 137 days |
| Optimistic | May 7 | Sep 21 | 137 days |
| Aggressive (risky) | Apr 27 | Sep 13 | 139 days |
Not very — frost dates can vary by ±43 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 1.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Millard County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Millard 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 Millard County's climate and soil.
County Extension Office
Millard County Utah State University Extension Extension Office
Phone: 435-797-2200
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 Millard County
Finding local nurseries & garden centers in Millard County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Millard 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 Millard County UT" or "garden center Millard 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 Millard County UT" or check your extension office and local parks department. Facebook groups like "Millard County Gardeners" or "Utah 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
14.7 hours
Summer solstice daylight
Shortest Day
9.3 hours
Winter solstice daylight
Peak Sun Hours
11 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: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.5 hr | 5.3 hr | Short day |
| February | 10.5 hr | 6.1 hr | Short day |
| March | 11.7 hr | 7.2 hr | Short day |
| April | 13 hr | 7.4 hr | Neutral |
| May | 14.1 hr | 8.4 hr | Long day |
| June | 14.7 hr | 11 hr | Long day |
| July | 14.5 hr | 10.2 hr | Long day |
| August | 13.5 hr | 9.1 hr | Neutral |
| September | 12.2 hr | 8.3 hr | Neutral |
| October | 10.9 hr | 6.9 hr | Short day |
| November | 9.8 hr | 5.6 hr | Short day |
| December | 9.3 hr | 4.9 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 rarely reaches 60°F — use black plastic mulch to warm soil.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
3 months
Short season — insulate pile or use indoor vermicomposting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 4°F | 12°F | ❄️ Dormant | ~36 weeks |
| Feb | 6°F | 10°F | ❄️ Dormant | ~36 weeks |
| Mar | 12°F | 17°F | ❄️ Dormant | ~36 weeks |
| Apr | 27°F | 25°F | ❄️ Dormant | ~36 weeks |
| May | 39°F | 35°F | ❄️ Dormant | ~36 weeks |
| Jun | 50°F | 44°F | 🐢 Slow | ~24 weeks |
| Jul | 57°F | 52°F | ♻️ Active | ~14 weeks |
| Aug | 57°F | 53°F | ♻️ Active | ~14 weeks |
| Sep | 52°F | 50°F | ♻️ Active | ~14 weeks |
| Oct | 39°F | 40°F | ❄️ Dormant | ~36 weeks |
| Nov | 22°F | 31°F | ❄️ Dormant | ~36 weeks |
| Dec | 12°F | 20°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 Millard County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash bugs | Low | Jun, Jul, Aug |
| Tomato hornworms | Moderate | Jul, Aug |
| Cabbage loopers | Moderate | May, Jun, Jul, Aug |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Millard County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 21 | Jul 29 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 24 | Jul 29 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Apr 15 | Aug 5 | ✓ 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 | Jun 6 | Sep 2 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (6 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 6 | Apr 25 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 17 | May 2 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 24 | Apr 25 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 25 | May 2 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 2 | Apr 25 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 8 | May 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: 15 mph Summer: 11 mph
Fall: 13 mph Winter: 14 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
6.7/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
High
Hilly terrain with 2,771 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
11,961 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
7 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.
Legal Status
Limited
Your state has quantity limits on rainwater collection — check local regulations before installing large systems.
Best Collection Months
Apr, May, Aug, Oct
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, 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 24.0 inches of rain per year
- A 1,000 sq ft roof can collect roughly 11,961 gallons annually
- Check UT state regulations — rainwater harvesting has quantity limits
- Stock up on stored water before your dry season (Feb, Nov, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Millard County
Soil Type
Loam
Soil pH 6.5–8 · Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
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
137-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
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 Millard County
106 vegetables that grow well in Zone 5b with planting dates for Millard County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 11 | May 23 | May 30 | Aug 22 – Sep 26 | 80–100 |
| Amaranth | Mar 21 | May 23 | May 30 | Aug 29 – Oct 17 | 90–120 |
| Arugula | Apr 11 | May 2 | May 16 | Jun 20 – Aug 22 | 30–50 |
| Asparagus | — | — | May 30 | — | 730–1095 |
| Beets | — | May 2 | — | Jun 27 – Jul 25 | 50–70 |
| Belgian Endive | Apr 11 | May 2 | May 16 | Sep 5 – Oct 31 | 110–150 |
| Bitter Melon | Mar 21 | May 23 | May 30 | Aug 1 – Sep 12 | 60–90 |
| Black Beans | — | May 23 | — | Aug 22 – Oct 10 | 90–120 |
| Bok Choy | Apr 11 | May 2 | May 16 | Jun 27 – Aug 1 | 40–60 |
| Broccoli | Apr 11 | May 2 | May 16 | Jul 18 – Aug 29 | 60–90 |
| Broccoli Rabe | Apr 11 | May 2 | May 16 | Jun 27 – Aug 1 | 40–60 |
| Brussels Sprouts | Apr 11 | May 2 | May 16 | Aug 15 – Oct 10 | 90–130 |
| Butternut Squash | Apr 11 | May 23 | May 30 | Aug 29 – Oct 3 | 85–110 |
| Cabbage | Apr 11 | May 2 | May 16 | Jul 18 – Sep 12 | 60–100 |
| Calabash | Mar 21 | May 23 | May 30 | Aug 22 – Oct 17 | 80–120 |
| Carrots | — | May 2 | — | Jul 4 – Aug 8 | 60–80 |
| Cauliflower | Apr 11 | May 2 | May 16 | Jul 11 – Sep 12 | 55–100 |
| Celeriac | Apr 11 | May 2 | May 16 | Aug 29 – Oct 3 | 100–120 |
| Celery | Apr 11 | May 2 | May 16 | Aug 8 – Oct 3 | 80–120 |
| Celtuce | Apr 11 | May 2 | May 16 | Jul 18 – Aug 29 | 60–90 |
| Chard | Apr 11 | May 2 | May 16 | Jul 11 – Aug 29 | 50–60 |
| Chickpeas | Apr 11 | May 2 | May 16 | Aug 8 – Sep 19 | 80–110 |
| Chicory | Apr 11 | May 2 | May 16 | Jul 18 – Aug 29 | 60–85 |
| Chinese Cabbage | Apr 11 | May 2 | May 16 | Jul 11 – Aug 8 | 50–70 |
| Christmas Lima Beans | Mar 21 | May 23 | May 30 | Aug 22 – Sep 26 | 80–100 |
| Collard Greens | Apr 11 | May 2 | May 16 | Jul 11 – Sep 12 | 55–75 |
| Corn | — | May 23 | — | Jul 25 – Sep 19 | 60–100 |
| Cowpeas | — | May 23 | — | Jul 25 – Sep 5 | 60–90 |
| Cress | Apr 11 | May 2 | May 16 | May 30 – Jun 20 | 14–21 |
| Crookneck Squash | Apr 11 | May 23 | May 30 | Jul 18 – Aug 15 | 45–60 |
| Crosne | — | May 2 | — | Oct 3 – Oct 17 | 150–200 |
| Cucumber | Apr 11 | May 23 | May 30 | Jul 25 – Sep 19 | 50–70 |
| Daikon | — | May 2 | — | Jun 27 – Jul 25 | 50–70 |
| Delicata Squash | Apr 11 | May 23 | May 30 | Aug 22 – Sep 26 | 80–100 |
| Edamame | — | May 23 | — | Aug 8 – Sep 19 | 75–100 |
| Eggplant | Mar 7 | May 23 | May 30 | Aug 8 – Oct 10 | 65–85 |
| Endive | Apr 11 | May 2 | May 16 | Jul 4 – Aug 8 | 45–65 |
| Escarole | Apr 11 | May 2 | May 16 | Jul 11 – Aug 8 | 50–70 |
| Fava Beans | Apr 11 | May 2 | May 16 | Aug 1 – Sep 12 | 75–100 |
| Fennel | Mar 21 | May 23 | May 30 | Aug 1 – Sep 12 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 23 | — | Jul 18 – Sep 12 | 50–65 |
| Horseradish | — | — | May 30 | Oct 3 – Nov 14 | 120–180 |
| Hot Peppers | Mar 7 | May 23 | May 30 | Aug 8 – Nov 14 | 70–120 |
| Hubbard Squash | Apr 11 | May 23 | May 30 | Sep 12 – Oct 17 | 100–120 |
| Kabocha | Apr 11 | May 23 | May 30 | Aug 29 – Sep 26 | 85–100 |
| Kai Lan | Apr 11 | May 2 | May 16 | Jul 4 – Aug 1 | 45–60 |
| Kale | Apr 11 | May 2 | May 16 | Jul 11 – Sep 5 | 50–70 |
| Kidney Beans | — | May 23 | — | Aug 22 – Sep 26 | 85–110 |
| Kohlrabi | Apr 11 | May 2 | May 16 | Jul 4 – Aug 8 | 45–65 |
| Komatsuna | Apr 11 | May 2 | May 16 | Jun 20 – Jul 25 | 35–50 |
| Leeks | Apr 11 | May 2 | May 16 | Aug 15 – Oct 31 | 90–150 |
| Lentils | Apr 11 | May 2 | May 16 | Aug 8 – Sep 19 | 80–110 |
| Lettuce | Apr 11 | May 2 | May 16 | Jun 20 – Aug 29 | 30–60 |
| Lima Beans | — | May 23 | — | Jul 25 – Sep 5 | 60–90 |
| Mache | Apr 11 | May 2 | May 16 | Jun 27 – Aug 1 | 40–60 |
| Melon | Apr 11 | May 23 | May 30 | Aug 8 – Sep 26 | 70–100 |
| Microgreens | Apr 11 | May 2 | May 16 | May 23 – Jun 20 | 7–21 |
| Mitsuba | Apr 11 | May 2 | May 9 | Jul 4 – Aug 29 | 50–70 |
| Mizuna | Apr 11 | May 2 | May 16 | Jun 20 – Jul 18 | 30–45 |
| Mustard Greens | Apr 11 | May 2 | May 16 | Jun 20 – Aug 22 | 30–50 |
| Napa Cabbage | Apr 11 | May 2 | May 16 | Jul 11 – Aug 15 | 55–75 |
| New Zealand Spinach | Mar 21 | May 23 | May 30 | Jul 25 – Aug 22 | 55–70 |
| Okra | Mar 21 | May 23 | May 30 | Jul 25 – Sep 19 | 50–65 |
| Onion | Apr 11 | May 2 | May 16 | Aug 15 – Oct 3 | 90–120 |
| Pac Choi | Apr 11 | May 2 | May 16 | Jun 27 – Jul 25 | 40–55 |
| Parsnip | — | May 2 | — | Aug 15 – Sep 26 | 100–130 |
| Patty Pan Squash | Apr 11 | May 23 | May 30 | Jul 18 – Aug 15 | 45–60 |
| Peas | Apr 11 | May 2 | May 16 | Jul 11 – Sep 5 | 55–70 |
| Peppers | Mar 7 | May 23 | May 30 | Aug 1 – Oct 10 | 60–90 |
| Pole Beans | Mar 21 | May 23 | May 30 | Jul 25 – Sep 19 | 55–70 |
| Potatoes | Mar 21 | May 23 | May 30 | Aug 8 – Oct 17 | 70–120 |
| Pumpkin | Apr 11 | May 23 | May 30 | Aug 29 – Oct 17 | 85–120 |
| Purslane | Apr 11 | May 2 | May 16 | Jun 27 – Aug 1 | 40–60 |
| Radicchio | Apr 11 | May 2 | May 16 | Jul 18 – Aug 22 | 60–80 |
| Radish | — | May 2 | — | May 30 – Jun 20 | 22–35 |
| Rhubarb | — | — | Jun 6 | — | 365–730 |
| Romanesco | Apr 11 | May 2 | May 16 | Aug 1 – Sep 12 | 75–100 |
| Rutabaga | — | May 2 | — | Jul 25 – Aug 29 | 80–100 |
| Salsify | — | May 2 | — | Aug 15 – Sep 26 | 100–130 |
| Savoy Cabbage | Apr 11 | May 2 | May 16 | Jul 25 – Sep 19 | 70–110 |
| Scallions | Apr 11 | May 2 | May 16 | Jul 11 – Aug 8 | 50–70 |
| Scarlet Runner Beans | Mar 21 | May 23 | May 30 | Aug 1 – Sep 5 | 60–80 |
| Shallot | Apr 11 | May 2 | May 16 | Aug 15 – Oct 3 | 90–120 |
| Shiso | Mar 28 | May 23 | May 30 | Jul 25 – Sep 19 | 50–70 |
| Snap Peas | Mar 21 | May 23 | May 30 | Jul 25 – Sep 19 | 55–70 |
| Snow Peas | Apr 11 | May 2 | May 16 | Jul 11 – Sep 5 | 50–65 |
| Soybeans | — | May 23 | — | Aug 15 – Oct 10 | 80–120 |
| Spaghetti Squash | Apr 11 | May 23 | May 30 | Aug 29 – Sep 26 | 85–100 |
| Spinach | Apr 11 | May 2 | May 16 | Jun 20 – Aug 22 | 35–50 |
| Squash (Summer) | Apr 11 | May 23 | May 30 | Jul 18 – Sep 19 | 45–65 |
| Squash (Winter) | Apr 11 | May 23 | May 30 | Aug 22 – Oct 17 | 80–120 |
| Sunchoke | — | — | May 30 | Sep 19 – Nov 14 | 110–150 |
| Sunflower | Mar 21 | May 23 | May 30 | Aug 8 – Sep 26 | 70–100 |
| Sweet Corn | — | May 23 | — | Jul 25 – Sep 5 | 60–90 |
| Sweet Potatoes | Mar 21 | May 23 | May 30 | Aug 29 – Oct 17 | 90–120 |
| Tatsoi | Apr 11 | May 2 | May 16 | Jun 20 – Jul 25 | 35–50 |
| Tomatillo | Mar 21 | May 23 | May 30 | Aug 1 – Oct 10 | 60–85 |
| Tomatoes | Mar 21 | May 23 | May 30 | Aug 1 – Oct 10 | 60–85 |
| Turnip | — | May 2 | — | Jun 13 – Jul 18 | 40–60 |
| Watercress | Apr 11 | May 2 | May 16 | Jun 27 – Aug 1 | 40–60 |
| Watermelon | Apr 11 | May 23 | May 30 | Aug 8 – Sep 26 | 70–100 |
| Wax Beans | — | May 23 | — | Jul 18 – Sep 12 | 50–65 |
| Winter Melon | Mar 21 | May 23 | May 30 | Aug 29 – Oct 17 | 90–120 |
| Yard Long Beans | Mar 21 | May 23 | May 30 | Jul 25 – Sep 5 | 55–80 |
| Zucchini | Apr 11 | May 23 | May 30 | Jul 18 – Sep 12 | 45–60 |
🍓 Fruits to Grow in Millard County
27 fruits that grow well in Zone 5b with planting dates for Millard County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 6 | Sep 5 – Nov 21 | 90–180 |
| Aronia | — | — | Jun 6 | — | 730–1095 |
| Blackberries | — | — | Jun 6 | — | 365–730 |
| Blueberries | — | — | Jun 6 | — | 730–1095 |
| Boysenberries | — | — | Jun 6 | — | 365–730 |
| Cantaloupe | — | — | Jun 6 | Aug 15 – Sep 19 | 70–90 |
| Che Fruit | — | — | Jun 6 | — | 1095–1825 |
| Cranberries | — | — | Jun 6 | — | 730–1095 |
| Currants | — | — | Jun 6 | — | 730–1095 |
| Elderberries | — | — | Jun 6 | — | 730–1095 |
| Goji Berries | — | — | Jun 6 | — | 730–1095 |
| Gooseberries | — | — | Jun 6 | — | 730–1095 |
| Grapes | — | — | Jun 6 | — | 730–1095 |
| Ground Cherry | — | — | Jun 6 | Aug 15 – Oct 10 | 65–80 |
| Hardy Kiwi | — | — | Jun 6 | — | 1095–1825 |
| Haskaps | — | — | Jun 6 | — | 730–1095 |
| Honeydew | — | — | Jun 6 | Aug 29 – Oct 10 | 80–110 |
| Jostaberry | — | — | Jun 6 | — | 730–1095 |
| Lingonberries | — | — | Jun 6 | — | 730–1095 |
| Medlar | — | — | Jun 6 | — | 1095–1825 |
| Mulberries | — | — | Jun 6 | — | 730–1825 |
| Pawpaw | — | — | Jun 6 | — | 1095–2555 |
| Persimmon | — | — | Jun 6 | — | 1095–2555 |
| Quince | — | — | Jun 6 | — | 1095–1825 |
| Raspberries | — | — | Jun 6 | — | 365–730 |
| Serviceberries | — | — | Jun 6 | — | 730–1095 |
| Strawberries | — | — | Jun 6 | Sep 5 – Nov 21 | 90–365 |
🌿 Herbs to Grow in Millard County
37 herbs that grow well in Zone 5b with planting dates for Millard County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 11 | May 2 | May 9 | — | 365–730 |
| Anise | Apr 11 | May 2 | May 9 | Aug 8 – Oct 24 | 90–120 |
| Basil | Mar 28 | May 23 | May 30 | Jul 25 – Sep 26 | 50–75 |
| Bee Balm | — | — | May 23 | Aug 22 – Nov 7 | 90–120 |
| Borage | Apr 11 | May 2 | May 9 | Jul 4 – Aug 22 | 50–60 |
| Caraway | Apr 11 | May 2 | May 9 | — | 365–450 |
| Catnip | — | — | May 23 | Jul 25 – Sep 26 | 60–80 |
| Chamomile | Apr 11 | May 2 | May 9 | Jul 11 – Sep 19 | 60–90 |
| Chervil | Apr 11 | May 2 | May 9 | Jun 20 – Aug 22 | 40–60 |
| Chives | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Cilantro | Apr 11 | May 2 | May 9 | Jun 20 – Aug 22 | 40–60 |
| Comfrey | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Cumin | Apr 11 | May 2 | May 9 | Aug 22 – Oct 24 | 100–120 |
| Dill | Apr 11 | May 2 | May 9 | Jun 20 – Aug 22 | 40–60 |
| Echinacea | — | — | May 23 | Sep 26 – Nov 7 | 120–180 |
| Epazote | Mar 28 | May 23 | May 30 | Jul 18 – Sep 12 | 45–60 |
| Fennel (herb) | Apr 11 | May 2 | May 9 | Jul 11 – Sep 19 | 60–90 |
| Feverfew | — | — | May 23 | Aug 22 – Nov 7 | 90–120 |
| Garlic Chives | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Horehound | — | — | May 23 | Aug 8 – Oct 3 | 75–90 |
| Hyssop | — | — | May 23 | Aug 1 – Oct 3 | 70–90 |
| Lavender | — | — | May 23 | Aug 22 – Nov 7 | 90–200 |
| Lemon Balm | — | — | May 23 | Jul 25 – Sep 12 | 60–70 |
| Lemon Thyme | — | — | May 23 | Aug 1 – Oct 3 | 70–90 |
| Lovage | — | — | May 23 | Aug 1 – Oct 3 | 70–90 |
| Mint | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Oregano | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Parsley | Apr 11 | May 2 | May 9 | Jul 11 – Sep 12 | 60–80 |
| Rue | — | — | May 23 | Aug 1 – Oct 3 | 70–90 |
| Sage | — | — | May 23 | Aug 8 – Oct 3 | 75–90 |
| Savory | — | — | May 23 | Jul 18 – Sep 12 | 50–70 |
| Sorrel | Apr 11 | May 2 | May 9 | Jun 20 – Aug 22 | 40–60 |
| Tarragon | — | — | May 23 | Jul 25 – Oct 3 | 60–90 |
| Thai Basil | Mar 28 | May 23 | May 30 | Jul 25 – Sep 26 | 50–75 |
| Thyme | — | — | May 23 | Aug 1 – Oct 3 | 70–90 |
| Valerian | — | — | May 23 | Sep 26 – Nov 7 | 120–180 |
| Yarrow | — | — | May 23 | Aug 22 – Nov 7 | 90–120 |
Monthly Planting Guide for Millard County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Millard County.
Frequently Asked Questions
What planting zone is Millard County, UT?
Millard County is in USDA Hardiness Zone 5b. 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 Millard County, UT?
Based on 31 years of NOAA weather station data, the median last spring frost in Millard County falls around May 16. In 8 out of 10 years, last frost lands between April 27 and June 9 — a 43-day window of variability. Use June 9 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Millard County, UT?
The median first fall frost in Millard County arrives around September 30. In cold years it can arrive as early as September 13; in mild years as late as October 18. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Millard County?
Millard County has a frost-free growing season of approximately 137 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 1.25 days per decade.
What is the soil like in Millard County for gardening?
Millard County has predominantly Loam soil with a pH range of 6.5–8 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Millard County?
Millard County has commercial agriculture that includes Hay, Cattle, Wheat, Sugar Beets, Barley. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Millard County a good location for home gardening?
Millard County scores 40/100 (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 Millard County gardeners in Zone 5b 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.
