Garfield County, UT — Planting Guide
Garfield County is in USDA Zone 5b. The average last spring frost is May 27 and the first fall frost is September 21, giving you a growing season of approximately 117 days.
At an elevation of 5,058 ft, Garfield County receives approximately 20.3 in of rainfall annually. Summer highs average 84°F with winter lows around 17°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 55 days year to year — ranging from April 30 in warm years to June 24 in cold years. The growing season is trending shorter by about 6.25 days per decade. Garfield County scores 32/100 (Challenging) on the Microclimate Index.
🌡️ Zone
5b (-15°F to -10°F min)
❄️ Last Frost
May 27
🍂 First Frost
September 21
📅 Growing Season
117 days
⛰️ Elevation
5,058 ft
🌧️ Annual Rainfall
20.3 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 | 1.4 in | 6 days | — | None |
| Feb | 1.3 in | 5 days | — | None |
| Mar | 1.9 in | 8 days | — | None |
| Apr | 2.1 in | 7 days | 2.2 in | High |
| May | 2.3 in | 6 days | 2 in | High |
| Jun | 1.4 in | 4 days | 2.9 in | High |
| Jul | 1.6 in | 6 days | 2.7 in | High |
| Aug | 2 in | 7 days | 2.3 in | High |
| Sep | 1.8 in | 5 days | 2.5 in | High |
| Oct | 2 in | 6 days | 2.3 in | High |
| Nov | 1.5 in | 6 days | — | None |
| Dec | 1 in | 7 days | — | None |
Annual total: 20.3 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.
Garfield County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.7
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 24 | Oct 13 | 111 days |
| Cautious | Jun 13 | Oct 1 | 110 days |
| Average year | May 27 | Sep 21 | 117 days |
| Optimistic | May 15 | Sep 13 | 121 days |
| Aggressive (risky) | Apr 30 | Sep 2 | 125 days |
Not very — frost dates can vary by ±55 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 shorter here (about 6.3 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.
Gardening Difficulty Score
Garfield County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Garfield 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 Garfield County's climate and soil.
County Extension Office
Garfield 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 Garfield County
Finding local nurseries & garden centers in Garfield County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Garfield 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 Garfield County UT" or "garden center Garfield 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 Garfield County UT" or check your extension office and local parks department. Facebook groups like "Garfield 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.
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
14.6 hours
Summer solstice daylight
Shortest Day
9.4 hours
Winter solstice daylight
Peak Sun Hours
10.8 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.
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 | 9.7 hr | 5.3 hr | Short day |
| February | 10.6 hr | 5.9 hr | Short day |
| March | 11.7 hr | 7.2 hr | Short day |
| April | 13 hr | 7.2 hr | Neutral |
| May | 14 hr | 8.9 hr | Long day |
| June | 14.6 hr | 10.8 hr | Long day |
| July | 14.4 hr | 10.1 hr | Long day |
| August | 13.5 hr | 9.1 hr | Neutral |
| September | 12.2 hr | 8.5 hr | Neutral |
| October | 11 hr | 6.8 hr | Short day |
| November | 9.9 hr | 5.8 hr | Short day |
| December | 9.4 hr | 5.1 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 Jul through Aug.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
4 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 | 9°F | 16°F | ❄️ Dormant | ~36 weeks |
| Feb | 11°F | 15°F | ❄️ Dormant | ~36 weeks |
| Mar | 19°F | 22°F | ❄️ Dormant | ~36 weeks |
| Apr | 32°F | 30°F | ❄️ Dormant | ~36 weeks |
| May | 45°F | 40°F | 🐢 Slow | ~24 weeks |
| Jun | 56°F | 50°F | ♻️ Active | ~14 weeks |
| Jul | 62°F | 57°F | ♻️ Active | ~14 weeks |
| Aug | 64°F | 60°F | ♻️ Active | ~14 weeks |
| Sep | 58°F | 55°F | ♻️ Active | ~14 weeks |
| Oct | 45°F | 47°F | 🐢 Slow | ~24 weeks |
| Nov | 30°F | 36°F | ❄️ Dormant | ~36 weeks |
| Dec | 15°F | 25°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 Garfield 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 | Moderate | 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 Garfield 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 | Jun 6 | Jul 13 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Jun 4 | Jul 13 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | May 1 | Jul 13 | ✓ 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 27 | Sep 7 | — | 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 | Jul 20 | May 6 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Daikon radish | Aug 12 | May 6 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 10 | May 13 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 23 | May 13 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 29 | May 6 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 2 | May 13 | — | 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: 10 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
7.3/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
High
Hilly terrain with 2,570 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
10,117 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 1,750 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, Jun, 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 20.3 inches of rain per year
- A 1,000 sq ft roof can collect roughly 10,117 gallons annually
- Check UT state regulations — rainwater harvesting has quantity limits
- Stock up on stored water before your dry season (Feb, Jun, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Garfield County
Soil Type
Loam
Soil pH 6.5–7.7 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
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
117-day frost-free season
A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.
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 Garfield County
106 vegetables that grow well in Zone 5b with planting dates for Garfield County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 22 | Jun 3 | Jun 10 | Sep 2 – Oct 7 | 80–100 |
| Amaranth | Apr 1 | Jun 3 | Jun 10 | Sep 9 – Oct 28 | 90–120 |
| Arugula | Apr 22 | May 13 | May 27 | Jul 1 – Sep 2 | 30–50 |
| Asparagus | — | — | Jun 10 | — | 730–1095 |
| Beets | — | May 13 | — | Jul 8 – Aug 5 | 50–70 |
| Belgian Endive | Apr 22 | May 13 | May 27 | Sep 16 – Nov 11 | 110–150 |
| Bitter Melon | Apr 1 | Jun 3 | Jun 10 | Aug 12 – Sep 23 | 60–90 |
| Black Beans | — | Jun 3 | — | Sep 2 – Oct 21 | 90–120 |
| Bok Choy | Apr 22 | May 13 | May 27 | Jul 8 – Aug 12 | 40–60 |
| Broccoli | Apr 22 | May 13 | May 27 | Jul 29 – Sep 9 | 60–90 |
| Broccoli Rabe | Apr 22 | May 13 | May 27 | Jul 8 – Aug 12 | 40–60 |
| Brussels Sprouts | Apr 22 | May 13 | May 27 | Aug 26 – Oct 21 | 90–130 |
| Butternut Squash | Apr 22 | Jun 3 | Jun 10 | Sep 9 – Oct 14 | 85–110 |
| Cabbage | Apr 22 | May 13 | May 27 | Jul 29 – Sep 23 | 60–100 |
| Calabash | Apr 1 | Jun 3 | Jun 10 | Sep 2 – Oct 28 | 80–120 |
| Carrots | — | May 13 | — | Jul 15 – Aug 19 | 60–80 |
| Cauliflower | Apr 22 | May 13 | May 27 | Jul 22 – Sep 23 | 55–100 |
| Celeriac | Apr 22 | May 13 | May 27 | Sep 9 – Oct 14 | 100–120 |
| Celery | Apr 22 | May 13 | May 27 | Aug 19 – Oct 14 | 80–120 |
| Celtuce | Apr 22 | May 13 | May 27 | Jul 29 – Sep 9 | 60–90 |
| Chard | Apr 22 | May 13 | May 27 | Jul 22 – Sep 9 | 50–60 |
| Chickpeas | Apr 22 | May 13 | May 27 | Aug 19 – Sep 30 | 80–110 |
| Chicory | Apr 22 | May 13 | May 27 | Jul 29 – Sep 9 | 60–85 |
| Chinese Cabbage | Apr 22 | May 13 | May 27 | Jul 22 – Aug 19 | 50–70 |
| Christmas Lima Beans | Apr 1 | Jun 3 | Jun 10 | Sep 2 – Oct 7 | 80–100 |
| Collard Greens | Apr 22 | May 13 | May 27 | Jul 22 – Sep 23 | 55–75 |
| Corn | — | Jun 3 | — | Aug 5 – Sep 30 | 60–100 |
| Cowpeas | — | Jun 3 | — | Aug 5 – Sep 16 | 60–90 |
| Cress | Apr 22 | May 13 | May 27 | Jun 10 – Jul 1 | 14–21 |
| Crookneck Squash | Apr 22 | Jun 3 | Jun 10 | Jul 29 – Aug 26 | 45–60 |
| Crosne | — | May 13 | — | Oct 14 – Oct 28 | 150–200 |
| Cucumber | Apr 22 | Jun 3 | Jun 10 | Aug 5 – Sep 30 | 50–70 |
| Daikon | — | May 13 | — | Jul 8 – Aug 5 | 50–70 |
| Delicata Squash | Apr 22 | Jun 3 | Jun 10 | Sep 2 – Oct 7 | 80–100 |
| Edamame | — | Jun 3 | — | Aug 19 – Sep 30 | 75–100 |
| Eggplant | Mar 18 | Jun 3 | Jun 10 | Aug 19 – Oct 21 | 65–85 |
| Endive | Apr 22 | May 13 | May 27 | Jul 15 – Aug 19 | 45–65 |
| Escarole | Apr 22 | May 13 | May 27 | Jul 22 – Aug 19 | 50–70 |
| Fava Beans | Apr 22 | May 13 | May 27 | Aug 12 – Sep 23 | 75–100 |
| Fennel | Apr 1 | Jun 3 | Jun 10 | Aug 12 – Sep 23 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Jun 3 | — | Jul 29 – Sep 23 | 50–65 |
| Horseradish | — | — | Jun 10 | Oct 14 – Nov 25 | 120–180 |
| Hot Peppers | Mar 18 | Jun 3 | Jun 10 | Aug 19 – Nov 25 | 70–120 |
| Hubbard Squash | Apr 22 | Jun 3 | Jun 10 | Sep 23 – Oct 28 | 100–120 |
| Kabocha | Apr 22 | Jun 3 | Jun 10 | Sep 9 – Oct 7 | 85–100 |
| Kai Lan | Apr 22 | May 13 | May 27 | Jul 15 – Aug 12 | 45–60 |
| Kale | Apr 22 | May 13 | May 27 | Jul 22 – Sep 16 | 50–70 |
| Kidney Beans | — | Jun 3 | — | Sep 2 – Oct 7 | 85–110 |
| Kohlrabi | Apr 22 | May 13 | May 27 | Jul 15 – Aug 19 | 45–65 |
| Komatsuna | Apr 22 | May 13 | May 27 | Jul 1 – Aug 5 | 35–50 |
| Leeks | Apr 22 | May 13 | May 27 | Aug 26 – Nov 11 | 90–150 |
| Lentils | Apr 22 | May 13 | May 27 | Aug 19 – Sep 30 | 80–110 |
| Lettuce | Apr 22 | May 13 | May 27 | Jul 1 – Sep 9 | 30–60 |
| Lima Beans | — | Jun 3 | — | Aug 5 – Sep 16 | 60–90 |
| Mache | Apr 22 | May 13 | May 27 | Jul 8 – Aug 12 | 40–60 |
| Melon | Apr 22 | Jun 3 | Jun 10 | Aug 19 – Oct 7 | 70–100 |
| Microgreens | Apr 22 | May 13 | May 27 | Jun 3 – Jul 1 | 7–21 |
| Mitsuba | Apr 22 | May 13 | May 20 | Jul 15 – Sep 9 | 50–70 |
| Mizuna | Apr 22 | May 13 | May 27 | Jul 1 – Jul 29 | 30–45 |
| Mustard Greens | Apr 22 | May 13 | May 27 | Jul 1 – Sep 2 | 30–50 |
| Napa Cabbage | Apr 22 | May 13 | May 27 | Jul 22 – Aug 26 | 55–75 |
| New Zealand Spinach | Apr 1 | Jun 3 | Jun 10 | Aug 5 – Sep 2 | 55–70 |
| Okra | Apr 1 | Jun 3 | Jun 10 | Aug 5 – Sep 30 | 50–65 |
| Onion | Apr 22 | May 13 | May 27 | Aug 26 – Oct 14 | 90–120 |
| Pac Choi | Apr 22 | May 13 | May 27 | Jul 8 – Aug 5 | 40–55 |
| Parsnip | — | May 13 | — | Aug 26 – Oct 7 | 100–130 |
| Patty Pan Squash | Apr 22 | Jun 3 | Jun 10 | Jul 29 – Aug 26 | 45–60 |
| Peas | Apr 22 | May 13 | May 27 | Jul 22 – Sep 16 | 55–70 |
| Peppers | Mar 18 | Jun 3 | Jun 10 | Aug 12 – Oct 21 | 60–90 |
| Pole Beans | Apr 1 | Jun 3 | Jun 10 | Aug 5 – Sep 30 | 55–70 |
| Potatoes | Apr 1 | Jun 3 | Jun 10 | Aug 19 – Oct 28 | 70–120 |
| Pumpkin | Apr 22 | Jun 3 | Jun 10 | Sep 9 – Oct 28 | 85–120 |
| Purslane | Apr 22 | May 13 | May 27 | Jul 8 – Aug 12 | 40–60 |
| Radicchio | Apr 22 | May 13 | May 27 | Jul 29 – Sep 2 | 60–80 |
| Radish | — | May 13 | — | Jun 10 – Jul 1 | 22–35 |
| Rhubarb | — | — | Jun 17 | — | 365–730 |
| Romanesco | Apr 22 | May 13 | May 27 | Aug 12 – Sep 23 | 75–100 |
| Rutabaga | — | May 13 | — | Aug 5 – Sep 9 | 80–100 |
| Salsify | — | May 13 | — | Aug 26 – Oct 7 | 100–130 |
| Savoy Cabbage | Apr 22 | May 13 | May 27 | Aug 5 – Sep 30 | 70–110 |
| Scallions | Apr 22 | May 13 | May 27 | Jul 22 – Aug 19 | 50–70 |
| Scarlet Runner Beans | Apr 1 | Jun 3 | Jun 10 | Aug 12 – Sep 16 | 60–80 |
| Shallot | Apr 22 | May 13 | May 27 | Aug 26 – Oct 14 | 90–120 |
| Shiso | Apr 8 | Jun 3 | Jun 10 | Aug 5 – Sep 30 | 50–70 |
| Snap Peas | Apr 1 | Jun 3 | Jun 10 | Aug 5 – Sep 30 | 55–70 |
| Snow Peas | Apr 22 | May 13 | May 27 | Jul 22 – Sep 16 | 50–65 |
| Soybeans | — | Jun 3 | — | Aug 26 – Oct 21 | 80–120 |
| Spaghetti Squash | Apr 22 | Jun 3 | Jun 10 | Sep 9 – Oct 7 | 85–100 |
| Spinach | Apr 22 | May 13 | May 27 | Jul 1 – Sep 2 | 35–50 |
| Squash (Summer) | Apr 22 | Jun 3 | Jun 10 | Jul 29 – Sep 30 | 45–65 |
| Squash (Winter) | Apr 22 | Jun 3 | Jun 10 | Sep 2 – Oct 28 | 80–120 |
| Sunchoke | — | — | Jun 10 | Sep 30 – Nov 25 | 110–150 |
| Sunflower | Apr 1 | Jun 3 | Jun 10 | Aug 19 – Oct 7 | 70–100 |
| Sweet Corn | — | Jun 3 | — | Aug 5 – Sep 16 | 60–90 |
| Sweet Potatoes | Apr 1 | Jun 3 | Jun 10 | Sep 9 – Oct 28 | 90–120 |
| Tatsoi | Apr 22 | May 13 | May 27 | Jul 1 – Aug 5 | 35–50 |
| Tomatillo | Apr 1 | Jun 3 | Jun 10 | Aug 12 – Oct 21 | 60–85 |
| Tomatoes | Apr 1 | Jun 3 | Jun 10 | Aug 12 – Oct 21 | 60–85 |
| Turnip | — | May 13 | — | Jun 24 – Jul 29 | 40–60 |
| Watercress | Apr 22 | May 13 | May 27 | Jul 8 – Aug 12 | 40–60 |
| Watermelon | Apr 22 | Jun 3 | Jun 10 | Aug 19 – Oct 7 | 70–100 |
| Wax Beans | — | Jun 3 | — | Jul 29 – Sep 23 | 50–65 |
| Winter Melon | Apr 1 | Jun 3 | Jun 10 | Sep 9 – Oct 28 | 90–120 |
| Yard Long Beans | Apr 1 | Jun 3 | Jun 10 | Aug 5 – Sep 16 | 55–80 |
| Zucchini | Apr 22 | Jun 3 | Jun 10 | Jul 29 – Sep 23 | 45–60 |
🍓 Fruits to Grow in Garfield County
27 fruits that grow well in Zone 5b with planting dates for Garfield County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 17 | Sep 16 – Dec 2 | 90–180 |
| Aronia | — | — | Jun 17 | — | 730–1095 |
| Blackberries | — | — | Jun 17 | — | 365–730 |
| Blueberries | — | — | Jun 17 | — | 730–1095 |
| Boysenberries | — | — | Jun 17 | — | 365–730 |
| Cantaloupe | — | — | Jun 17 | Aug 26 – Sep 30 | 70–90 |
| Che Fruit | — | — | Jun 17 | — | 1095–1825 |
| Cranberries | — | — | Jun 17 | — | 730–1095 |
| Currants | — | — | Jun 17 | — | 730–1095 |
| Elderberries | — | — | Jun 17 | — | 730–1095 |
| Goji Berries | — | — | Jun 17 | — | 730–1095 |
| Gooseberries | — | — | Jun 17 | — | 730–1095 |
| Grapes | — | — | Jun 17 | — | 730–1095 |
| Ground Cherry | — | — | Jun 17 | Aug 26 – Oct 21 | 65–80 |
| Hardy Kiwi | — | — | Jun 17 | — | 1095–1825 |
| Haskaps | — | — | Jun 17 | — | 730–1095 |
| Honeydew | — | — | Jun 17 | Sep 9 – Oct 21 | 80–110 |
| Jostaberry | — | — | Jun 17 | — | 730–1095 |
| Lingonberries | — | — | Jun 17 | — | 730–1095 |
| Medlar | — | — | Jun 17 | — | 1095–1825 |
| Mulberries | — | — | Jun 17 | — | 730–1825 |
| Pawpaw | — | — | Jun 17 | — | 1095–2555 |
| Persimmon | — | — | Jun 17 | — | 1095–2555 |
| Quince | — | — | Jun 17 | — | 1095–1825 |
| Raspberries | — | — | Jun 17 | — | 365–730 |
| Serviceberries | — | — | Jun 17 | — | 730–1095 |
| Strawberries | — | — | Jun 17 | Sep 16 – Dec 2 | 90–365 |
🌿 Herbs to Grow in Garfield County
37 herbs that grow well in Zone 5b with planting dates for Garfield County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 22 | May 13 | May 20 | — | 365–730 |
| Anise | Apr 22 | May 13 | May 20 | Aug 19 – Nov 4 | 90–120 |
| Basil | Apr 8 | Jun 3 | Jun 10 | Aug 5 – Oct 7 | 50–75 |
| Bee Balm | — | — | Jun 3 | Sep 2 – Nov 18 | 90–120 |
| Borage | Apr 22 | May 13 | May 20 | Jul 15 – Sep 2 | 50–60 |
| Caraway | Apr 22 | May 13 | May 20 | — | 365–450 |
| Catnip | — | — | Jun 3 | Aug 5 – Oct 7 | 60–80 |
| Chamomile | Apr 22 | May 13 | May 20 | Jul 22 – Sep 30 | 60–90 |
| Chervil | Apr 22 | May 13 | May 20 | Jul 1 – Sep 2 | 40–60 |
| Chives | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Cilantro | Apr 22 | May 13 | May 20 | Jul 1 – Sep 2 | 40–60 |
| Comfrey | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Cumin | Apr 22 | May 13 | May 20 | Sep 2 – Nov 4 | 100–120 |
| Dill | Apr 22 | May 13 | May 20 | Jul 1 – Sep 2 | 40–60 |
| Echinacea | — | — | Jun 3 | Oct 7 – Nov 18 | 120–180 |
| Epazote | Apr 8 | Jun 3 | Jun 10 | Jul 29 – Sep 23 | 45–60 |
| Fennel (herb) | Apr 22 | May 13 | May 20 | Jul 22 – Sep 30 | 60–90 |
| Feverfew | — | — | Jun 3 | Sep 2 – Nov 18 | 90–120 |
| Garlic Chives | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Horehound | — | — | Jun 3 | Aug 19 – Oct 14 | 75–90 |
| Hyssop | — | — | Jun 3 | Aug 12 – Oct 14 | 70–90 |
| Lavender | — | — | Jun 3 | Sep 2 – Nov 18 | 90–200 |
| Lemon Balm | — | — | Jun 3 | Aug 5 – Sep 23 | 60–70 |
| Lemon Thyme | — | — | Jun 3 | Aug 12 – Oct 14 | 70–90 |
| Lovage | — | — | Jun 3 | Aug 12 – Oct 14 | 70–90 |
| Mint | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Oregano | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Parsley | Apr 22 | May 13 | May 20 | Jul 22 – Sep 23 | 60–80 |
| Rue | — | — | Jun 3 | Aug 12 – Oct 14 | 70–90 |
| Sage | — | — | Jun 3 | Aug 19 – Oct 14 | 75–90 |
| Savory | — | — | Jun 3 | Jul 29 – Sep 23 | 50–70 |
| Sorrel | Apr 22 | May 13 | May 20 | Jul 1 – Sep 2 | 40–60 |
| Tarragon | — | — | Jun 3 | Aug 5 – Oct 14 | 60–90 |
| Thai Basil | Apr 8 | Jun 3 | Jun 10 | Aug 5 – Oct 7 | 50–75 |
| Thyme | — | — | Jun 3 | Aug 12 – Oct 14 | 70–90 |
| Valerian | — | — | Jun 3 | Oct 7 – Nov 18 | 120–180 |
| Yarrow | — | — | Jun 3 | Sep 2 – Nov 18 | 90–120 |
Monthly Planting Guide for Garfield County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Garfield County.
Frequently Asked Questions
What planting zone is Garfield County, UT?
Garfield 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 Garfield County, UT?
Based on 31 years of NOAA weather station data, the median last spring frost in Garfield County falls around May 27. In 8 out of 10 years, last frost lands between April 30 and June 24 — a 55-day window of variability. Use June 24 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Garfield County, UT?
The median first fall frost in Garfield County arrives around September 21. In cold years it can arrive as early as September 2; in mild years as late as October 13. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Garfield County?
Garfield County has a frost-free growing season of approximately 117 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 shorter by about 6.25 days per decade.
What is the soil like in Garfield County for gardening?
Garfield County has predominantly Loam soil with a pH range of 6.5–7.7 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Garfield County?
Garfield County has commercial agriculture that includes Cattle, Hay, Wheat, Barley. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Garfield County a good location for home gardening?
Garfield County scores 32/100 (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 Garfield 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.
