Gunnison County, CO — Planting Guide
May to-do list for Gunnison County, Colorado
Each item below is timed to Gunnison County, Colorado's frost dates and soil temperatures. Skip nothing, stress about nothing.
-
Seed carrots, kale, and lettuce outdoors
Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.
June will be here before you know it — start on
- Transplants going out: basil, cucumber, and kale
- Direct-sowing: basil, cucumber, and green beans
- First harvests: radish, cress, and microgreens
Gunnison County is in USDA Zone 5a. The average last spring frost is June 12 and the first fall frost is September 10, giving you a growing season of approximately 90 days.
At an elevation of 7,435 ft, Gunnison County receives approximately 17.9 in of rainfall annually. Summer highs average 83°F with winter lows around 4°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 37 days year to year — ranging from May 19 in warm years to June 25 in cold years. Gunnison County scores 41/100 (Moderate) on the Microclimate Index.
🌡️ Zone
5a (°F to °F min)
❄️ Last Frost
June 12
🍂 First Frost
September 10
📅 Growing Season
90 days
⛰️ Elevation
7,435 ft
🌧️ Annual Rainfall
17.9 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 | 1.2 in | 6 days | — | None |
| Feb | 1.1 in | 5 days | — | None |
| Mar | 1.7 in | 7 days | — | None |
| Apr | 2 in | 7 days | 2.3 in | High |
| May | 2.2 in | 8 days | 2.1 in | High |
| Jun | 1.3 in | 4 days | 3 in | High |
| Jul | 1.7 in | 5 days | 2.6 in | High |
| Aug | 1.6 in | 7 days | 2.7 in | High |
| Sep | 1.5 in | 5 days | 2.8 in | High |
| Oct | 1.4 in | 5 days | 2.9 in | High |
| Nov | 1.2 in | 6 days | — | None |
| Dec | 1 in | 7 days | — | None |
Annual total: 17.9 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Gunnison County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.9
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 25 | Sep 30 | 97 days |
| Cautious | Jun 19 | Sep 19 | 92 days |
| Average year | Jun 12 | Sep 10 | 90 days |
| Optimistic | May 29 | Sep 1 | 95 days |
| Aggressive (risky) | May 19 | Aug 8 | 81 days |
Not very — frost dates can vary by ±37 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.5 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Gunnison County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Gunnison 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 Gunnison County's climate and soil.
County Extension Office
Gunnison County Colorado State University Extension Extension Office
Phone: 970-491-6281
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 Gunnison County
Finding local nurseries & garden centers in Gunnison County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Gunnison 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 Gunnison County CO" or "garden center Gunnison 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 Gunnison County CO" or check your extension office and local parks department. Facebook groups like "Gunnison County Gardeners" or "Colorado 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
14.7 hours
Summer solstice daylight
Shortest Day
9.3 hours
Winter solstice daylight
Peak Sun Hours
10.5 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 | 9.6 hr | 5.3 hr | Short day |
| February | 10.5 hr | 6 hr | Short day |
| March | 11.7 hr | 7.1 hr | Short day |
| April | 13 hr | 7.5 hr | Neutral |
| May | 14.1 hr | 9.2 hr | Long day |
| June | 14.7 hr | 10.2 hr | Long day |
| July | 14.5 hr | 10.5 hr | Long day |
| August | 13.5 hr | 9 hr | Neutral |
| September | 12.2 hr | 8.8 hr | Neutral |
| October | 11 hr | 7.4 hr | Short day |
| November | 9.8 hr | 5.8 hr | Short day |
| December | 9.3 hr | 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 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
2 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 | -7°F | 1°F | ❄️ Dormant | ~36 weeks |
| Feb | -5°F | 1°F | ❄️ Dormant | ~36 weeks |
| Mar | 6°F | 6°F | ❄️ Dormant | ~36 weeks |
| Apr | 21°F | 17°F | ❄️ Dormant | ~36 weeks |
| May | 34°F | 30°F | ❄️ Dormant | ~36 weeks |
| Jun | 44°F | 37°F | 🐢 Slow | ~24 weeks |
| Jul | 52°F | 43°F | ♻️ Active | ~14 weeks |
| Aug | 51°F | 48°F | ♻️ Active | ~14 weeks |
| Sep | 45°F | 42°F | 🐢 Slow | ~24 weeks |
| Oct | 30°F | 32°F | ❄️ Dormant | ~36 weeks |
| Nov | 15°F | 23°F | ❄️ Dormant | ~36 weeks |
| Dec | 1°F | 10°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 Gunnison 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 |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Low | May, Jun, Jul |
| Slugs | Moderate | May, Jun, Jul, Aug, Sep |
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 Gunnison County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 17 | Jul 2 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | May 13 | Jul 9 | ✓ 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 24 | Aug 27 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Jul 13 | May 29 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 20 | May 22 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 12 | May 29 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 4 | May 22 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 18 | May 22 | — | 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: 15 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7.5/10
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 1,130 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
8,921 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
8 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
Mar, Apr, May, Jul
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 17.9 inches of rain per year
- A 1,000 sq ft roof can collect roughly 8,921 gallons annually
- Check CO state regulations — rainwater harvesting has quantity limits
- In your dry climate, every drop counts — consider a larger cistern system
- Position collection tanks in shade to reduce evaporation and algae growth
Soil & Growing Conditions in Gunnison County
Soil Type
Loam
Soil pH 6.5–7.9 · Moderately 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
90-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.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 24-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
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 Gunnison County
106 vegetables that grow well in Zone 5a with planting dates for Gunnison County.
Show all 106 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | May 8 | Jun 19 | Jun 26 | Sep 18 – Oct 23 | 80–100 |
| Amaranth | Apr 17 | Jun 19 | Jun 26 | Sep 25 – Nov 13 | 90–120 |
| Arugula | May 8 | May 29 | Jun 12 | Jul 17 – Sep 18 | 30–50 |
| Asparagus | — | — | Jun 26 | — | 730–1095 |
| Beets | — | May 29 | — | Jul 24 – Aug 21 | 50–70 |
| Belgian Endive | May 8 | May 29 | Jun 12 | Oct 2 – Nov 27 | 110–150 |
| Bitter Melon | Apr 17 | Jun 19 | Jun 26 | Aug 28 – Oct 9 | 60–90 |
| Black Beans | — | Jun 19 | — | Sep 18 – Nov 6 | 90–120 |
| Bok Choy | May 8 | May 29 | Jun 12 | Jul 24 – Aug 28 | 40–60 |
| Broccoli | May 8 | May 29 | Jun 12 | Aug 14 – Sep 25 | 60–90 |
| Broccoli Rabe | May 8 | May 29 | Jun 12 | Jul 24 – Aug 28 | 40–60 |
| Brussels Sprouts | May 8 | May 29 | Jun 12 | Sep 11 – Nov 6 | 90–130 |
| Butternut Squash | May 8 | Jun 19 | Jun 26 | Sep 25 – Oct 30 | 85–110 |
| Cabbage | May 8 | May 29 | Jun 12 | Aug 14 – Oct 9 | 60–100 |
| Calabash | Apr 17 | Jun 19 | Jun 26 | Sep 18 – Nov 13 | 80–120 |
| Carrots | — | May 29 | — | Jul 31 – Sep 4 | 60–80 |
| Cauliflower | May 8 | May 29 | Jun 12 | Aug 7 – Oct 9 | 55–100 |
| Celeriac | May 8 | May 29 | Jun 12 | Sep 25 – Oct 30 | 100–120 |
| Celery | May 8 | May 29 | Jun 12 | Sep 4 – Oct 30 | 80–120 |
| Celtuce | May 8 | May 29 | Jun 12 | Aug 14 – Sep 25 | 60–90 |
| Chard | May 8 | May 29 | Jun 12 | Aug 7 – Sep 25 | 50–60 |
| Chickpeas | May 8 | May 29 | Jun 12 | Sep 4 – Oct 16 | 80–110 |
| Chicory | May 8 | May 29 | Jun 12 | Aug 14 – Sep 25 | 60–85 |
| Chinese Cabbage | May 8 | May 29 | Jun 12 | Aug 7 – Sep 4 | 50–70 |
| Christmas Lima Beans | Apr 17 | Jun 19 | Jun 26 | Sep 18 – Oct 23 | 80–100 |
| Collard Greens | May 8 | May 29 | Jun 12 | Aug 7 – Oct 9 | 55–75 |
| Corn | — | Jun 19 | — | Aug 21 – Oct 16 | 60–100 |
| Cowpeas | — | Jun 19 | — | Aug 21 – Oct 2 | 60–90 |
| Cress | May 8 | May 29 | Jun 12 | Jun 26 – Jul 17 | 14–21 |
| Crookneck Squash | May 8 | Jun 19 | Jun 26 | Aug 14 – Sep 11 | 45–60 |
| Crosne | — | May 29 | — | Oct 30 – Nov 13 | 150–200 |
| Cucumber | May 8 | Jun 19 | Jun 26 | Aug 21 – Oct 16 | 50–70 |
| Daikon | — | May 29 | — | Jul 24 – Aug 21 | 50–70 |
| Delicata Squash | May 8 | Jun 19 | Jun 26 | Sep 18 – Oct 23 | 80–100 |
| Edamame | — | Jun 19 | — | Sep 4 – Oct 16 | 75–100 |
| Eggplant | Apr 3 | Jun 19 | Jun 26 | Sep 4 – Nov 6 | 65–85 |
| Endive | May 8 | May 29 | Jun 12 | Jul 31 – Sep 4 | 45–65 |
| Escarole | May 8 | May 29 | Jun 12 | Aug 7 – Sep 4 | 50–70 |
| Fava Beans | May 8 | May 29 | Jun 12 | Aug 28 – Oct 9 | 75–100 |
| Fennel | Apr 17 | Jun 19 | Jun 26 | Aug 28 – Oct 9 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Jun 19 | — | Aug 14 – Oct 9 | 50–65 |
| Horseradish | — | — | Jun 26 | Oct 30 – Dec 11 | 120–180 |
| Hot Peppers | Apr 3 | Jun 19 | Jun 26 | Sep 4 – Dec 11 | 70–120 |
| Hubbard Squash | May 8 | Jun 19 | Jun 26 | Oct 9 – Nov 13 | 100–120 |
| Kabocha | May 8 | Jun 19 | Jun 26 | Sep 25 – Oct 23 | 85–100 |
| Kai Lan | May 8 | May 29 | Jun 12 | Jul 31 – Aug 28 | 45–60 |
| Kale | May 8 | May 29 | Jun 12 | Aug 7 – Oct 2 | 50–70 |
| Kidney Beans | — | Jun 19 | — | Sep 18 – Oct 23 | 85–110 |
| Kohlrabi | May 8 | May 29 | Jun 12 | Jul 31 – Sep 4 | 45–65 |
| Komatsuna | May 8 | May 29 | Jun 12 | Jul 17 – Aug 21 | 35–50 |
| Leeks | May 8 | May 29 | Jun 12 | Sep 11 – Nov 27 | 90–150 |
| Lentils | May 8 | May 29 | Jun 12 | Sep 4 – Oct 16 | 80–110 |
| Lettuce | May 8 | May 29 | Jun 12 | Jul 17 – Sep 25 | 30–60 |
| Lima Beans | — | Jun 19 | — | Aug 21 – Oct 2 | 60–90 |
| Mache | May 8 | May 29 | Jun 12 | Jul 24 – Aug 28 | 40–60 |
| Melon | May 8 | Jun 19 | Jun 26 | Sep 4 – Oct 23 | 70–100 |
| Microgreens | May 8 | May 29 | Jun 12 | Jun 19 – Jul 17 | 7–21 |
| Mitsuba | May 8 | May 29 | Jun 5 | Jul 31 – Sep 25 | 50–70 |
| Mizuna | May 8 | May 29 | Jun 12 | Jul 17 – Aug 14 | 30–45 |
| Mustard Greens | May 8 | May 29 | Jun 12 | Jul 17 – Sep 18 | 30–50 |
| Napa Cabbage | May 8 | May 29 | Jun 12 | Aug 7 – Sep 11 | 55–75 |
| New Zealand Spinach | Apr 17 | Jun 19 | Jun 26 | Aug 21 – Sep 18 | 55–70 |
| Okra | Apr 17 | Jun 19 | Jun 26 | Aug 21 – Oct 16 | 50–65 |
| Onion | May 8 | May 29 | Jun 12 | Sep 11 – Oct 30 | 90–120 |
| Pac Choi | May 8 | May 29 | Jun 12 | Jul 24 – Aug 21 | 40–55 |
| Parsnip | — | May 29 | — | Sep 11 – Oct 23 | 100–130 |
| Patty Pan Squash | May 8 | Jun 19 | Jun 26 | Aug 14 – Sep 11 | 45–60 |
| Peas | May 8 | May 29 | Jun 12 | Aug 7 – Oct 2 | 55–70 |
| Peppers | Apr 3 | Jun 19 | Jun 26 | Aug 28 – Nov 6 | 60–90 |
| Pole Beans | Apr 17 | Jun 19 | Jun 26 | Aug 21 – Oct 16 | 55–70 |
| Potatoes | Apr 17 | Jun 19 | Jun 26 | Sep 4 – Nov 13 | 70–120 |
| Pumpkin | May 8 | Jun 19 | Jun 26 | Sep 25 – Nov 13 | 85–120 |
| Purslane | May 8 | May 29 | Jun 12 | Jul 24 – Aug 28 | 40–60 |
| Radicchio | May 8 | May 29 | Jun 12 | Aug 14 – Sep 18 | 60–80 |
| Radish | — | May 29 | — | Jun 26 – Jul 17 | 22–35 |
| Rhubarb | — | — | Jul 3 | — | 365–730 |
| Romanesco | May 8 | May 29 | Jun 12 | Aug 28 – Oct 9 | 75–100 |
| Rutabaga | — | May 29 | — | Aug 21 – Sep 25 | 80–100 |
| Salsify | — | May 29 | — | Sep 11 – Oct 23 | 100–130 |
| Savoy Cabbage | May 8 | May 29 | Jun 12 | Aug 21 – Oct 16 | 70–110 |
| Scallions | May 8 | May 29 | Jun 12 | Aug 7 – Sep 4 | 50–70 |
| Scarlet Runner Beans | Apr 17 | Jun 19 | Jun 26 | Aug 28 – Oct 2 | 60–80 |
| Shallot | May 8 | May 29 | Jun 12 | Sep 11 – Oct 30 | 90–120 |
| Shiso | Apr 24 | Jun 19 | Jun 26 | Aug 21 – Oct 16 | 50–70 |
| Snap Peas | Apr 17 | Jun 19 | Jun 26 | Aug 21 – Oct 16 | 55–70 |
| Snow Peas | May 8 | May 29 | Jun 12 | Aug 7 – Oct 2 | 50–65 |
| Soybeans | — | Jun 19 | — | Sep 11 – Nov 6 | 80–120 |
| Spaghetti Squash | May 8 | Jun 19 | Jun 26 | Sep 25 – Oct 23 | 85–100 |
| Spinach | May 8 | May 29 | Jun 12 | Jul 17 – Sep 18 | 35–50 |
| Squash (Summer) | May 8 | Jun 19 | Jun 26 | Aug 14 – Oct 16 | 45–65 |
| Squash (Winter) | May 8 | Jun 19 | Jun 26 | Sep 18 – Nov 13 | 80–120 |
| Sunchoke | — | — | Jun 26 | Oct 16 – Dec 11 | 110–150 |
| Sunflower | Apr 17 | Jun 19 | Jun 26 | Sep 4 – Oct 23 | 70–100 |
| Sweet Corn | — | Jun 19 | — | Aug 21 – Oct 2 | 60–90 |
| Sweet Potatoes | Apr 17 | Jun 19 | Jun 26 | Sep 25 – Nov 13 | 90–120 |
| Tatsoi | May 8 | May 29 | Jun 12 | Jul 17 – Aug 21 | 35–50 |
| Tomatillo | Apr 17 | Jun 19 | Jun 26 | Aug 28 – Nov 6 | 60–85 |
| Tomatoes | Apr 17 | Jun 19 | Jun 26 | Aug 28 – Nov 6 | 60–85 |
| Turnip | — | May 29 | — | Jul 10 – Aug 14 | 40–60 |
| Watercress | May 8 | May 29 | Jun 12 | Jul 24 – Aug 28 | 40–60 |
| Watermelon | May 8 | Jun 19 | Jun 26 | Sep 4 – Oct 23 | 70–100 |
| Wax Beans | — | Jun 19 | — | Aug 14 – Oct 9 | 50–65 |
| Winter Melon | Apr 17 | Jun 19 | Jun 26 | Sep 25 – Nov 13 | 90–120 |
| Yard Long Beans | Apr 17 | Jun 19 | Jun 26 | Aug 21 – Oct 2 | 55–80 |
| Zucchini | May 8 | Jun 19 | Jun 26 | Aug 14 – Oct 9 | 45–60 |
🍓 Fruits to Grow in Gunnison County
27 fruits that grow well in Zone 5a with planting dates for Gunnison County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jul 3 | Oct 2 – Dec 18 | 90–180 |
| Aronia | — | — | Jul 3 | — | 730–1095 |
| Blackberries | — | — | Jul 3 | — | 365–730 |
| Blueberries | — | — | Jul 3 | — | 730–1095 |
| Boysenberries | — | — | Jul 3 | — | 365–730 |
| Cantaloupe | — | — | Jul 3 | Sep 11 – Oct 16 | 70–90 |
| Che Fruit | — | — | Jul 3 | — | 1095–1825 |
| Cranberries | — | — | Jul 3 | — | 730–1095 |
| Currants | — | — | Jul 3 | — | 730–1095 |
| Elderberries | — | — | Jul 3 | — | 730–1095 |
| Goji Berries | — | — | Jul 3 | — | 730–1095 |
| Gooseberries | — | — | Jul 3 | — | 730–1095 |
| Grapes | — | — | Jul 3 | — | 730–1095 |
| Ground Cherry | — | — | Jul 3 | Sep 11 – Nov 6 | 65–80 |
| Hardy Kiwi | — | — | Jul 3 | — | 1095–1825 |
| Haskaps | — | — | Jul 3 | — | 730–1095 |
| Honeydew | — | — | Jul 3 | Sep 25 – Nov 6 | 80–110 |
| Jostaberry | — | — | Jul 3 | — | 730–1095 |
| Lingonberries | — | — | Jul 3 | — | 730–1095 |
| Medlar | — | — | Jul 3 | — | 1095–1825 |
| Mulberries | — | — | Jul 3 | — | 730–1825 |
| Pawpaw | — | — | Jul 3 | — | 1095–2555 |
| Persimmon | — | — | Jul 3 | — | 1095–2555 |
| Quince | — | — | Jul 3 | — | 1095–1825 |
| Raspberries | — | — | Jul 3 | — | 365–730 |
| Serviceberries | — | — | Jul 3 | — | 730–1095 |
| Strawberries | — | — | Jul 3 | Oct 2 – Dec 18 | 90–365 |
🌿 Herbs to Grow in Gunnison County
37 herbs that grow well in Zone 5a with planting dates for Gunnison County.
Show all 37 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | May 8 | May 29 | Jun 5 | — | 365–730 |
| Anise | May 8 | May 29 | Jun 5 | Sep 4 – Nov 20 | 90–120 |
| Basil | Apr 24 | Jun 19 | Jun 26 | Aug 21 – Oct 23 | 50–75 |
| Bee Balm | — | — | Jun 19 | Sep 18 – Dec 4 | 90–120 |
| Borage | May 8 | May 29 | Jun 5 | Jul 31 – Sep 18 | 50–60 |
| Caraway | May 8 | May 29 | Jun 5 | — | 365–450 |
| Catnip | — | — | Jun 19 | Aug 21 – Oct 23 | 60–80 |
| Chamomile | May 8 | May 29 | Jun 5 | Aug 7 – Oct 16 | 60–90 |
| Chervil | May 8 | May 29 | Jun 5 | Jul 17 – Sep 18 | 40–60 |
| Chives | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Cilantro | May 8 | May 29 | Jun 5 | Jul 17 – Sep 18 | 40–60 |
| Comfrey | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Cumin | May 8 | May 29 | Jun 5 | Sep 18 – Nov 20 | 100–120 |
| Dill | May 8 | May 29 | Jun 5 | Jul 17 – Sep 18 | 40–60 |
| Echinacea | — | — | Jun 19 | Oct 23 – Dec 4 | 120–180 |
| Epazote | Apr 24 | Jun 19 | Jun 26 | Aug 14 – Oct 9 | 45–60 |
| Fennel (herb) | May 8 | May 29 | Jun 5 | Aug 7 – Oct 16 | 60–90 |
| Feverfew | — | — | Jun 19 | Sep 18 – Dec 4 | 90–120 |
| Garlic Chives | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Horehound | — | — | Jun 19 | Sep 4 – Oct 30 | 75–90 |
| Hyssop | — | — | Jun 19 | Aug 28 – Oct 30 | 70–90 |
| Lavender | — | — | Jun 19 | Sep 18 – Dec 4 | 90–200 |
| Lemon Balm | — | — | Jun 19 | Aug 21 – Oct 9 | 60–70 |
| Lemon Thyme | — | — | Jun 19 | Aug 28 – Oct 30 | 70–90 |
| Lovage | — | — | Jun 19 | Aug 28 – Oct 30 | 70–90 |
| Mint | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Oregano | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Parsley | May 8 | May 29 | Jun 5 | Aug 7 – Oct 9 | 60–80 |
| Rue | — | — | Jun 19 | Aug 28 – Oct 30 | 70–90 |
| Sage | — | — | Jun 19 | Sep 4 – Oct 30 | 75–90 |
| Savory | — | — | Jun 19 | Aug 14 – Oct 9 | 50–70 |
| Sorrel | May 8 | May 29 | Jun 5 | Jul 17 – Sep 18 | 40–60 |
| Tarragon | — | — | Jun 19 | Aug 21 – Oct 30 | 60–90 |
| Thai Basil | Apr 24 | Jun 19 | Jun 26 | Aug 21 – Oct 23 | 50–75 |
| Thyme | — | — | Jun 19 | Aug 28 – Oct 30 | 70–90 |
| Valerian | — | — | Jun 19 | Oct 23 – Dec 4 | 120–180 |
| Yarrow | — | — | Jun 19 | Sep 18 – Dec 4 | 90–120 |
Monthly Planting Guide for Gunnison County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Gunnison County.
Frequently Asked Questions
What planting zone is Gunnison County, CO?
Gunnison County is in USDA Hardiness Zone 5a. 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 Gunnison County, CO?
Based on 31 years of NOAA weather station data, the median last spring frost in Gunnison County falls around June 12. In 8 out of 10 years, last frost lands between May 19 and June 25 — a 37-day window of variability. Use June 25 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Gunnison County, CO?
The median first fall frost in Gunnison County arrives around September 10. In cold years it can arrive as early as August 8; in mild years as late as September 30. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Gunnison County?
Gunnison County has a frost-free growing season of approximately 90 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost.
What is the soil like in Gunnison County for gardening?
Gunnison County has predominantly Loam soil with a pH range of 6.5–7.9 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Gunnison County?
Gunnison County has commercial agriculture that includes Cattle, Hay, Wheat, Sugar Beets. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Gunnison County a good location for home gardening?
Gunnison County scores 41/100 (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.
Your Gunnison County Garden Planner — Free
A 24-page printable planner built for Gunnison County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log