Teton County, WY — Planting Guide
Teton County, Wyoming gardeners: here's your August plan
Welcome to August in Zone 4b. These are the moves that will have the biggest impact on your growing season.
-
Time to start basil, pole beans, and thai basil inside
Label every cell. You will absolutely forget which is which otherwise.
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Harvest carrots, green beans, and kale as they ripen
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
A few tasks this August that'll pay off in September
- Starting indoors: peppers, begonias, and geraniums
- First harvests: basil, carrots, and cucumber
Teton County is in USDA Zone 4b. The average last spring frost is June 16 and the first fall frost is September 6, giving you a growing season of approximately 82 days.
At an elevation of 6,591 ft, Teton County receives approximately 19.3 in of rainfall annually. Summer highs average 84°F with winter lows around 2°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 45 days year to year — ranging from May 13 in warm years to June 28 in cold years. The growing season is trending longer by about 4.64 days per decade. Teton County scores 29/100 (Challenging) on the Microclimate Index.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
June 16
🍂 First Frost
September 6
📅 Growing Season
82 days
⛰️ Elevation
6,591 ft
🌧️ Annual Rainfall
19.3 in
Monthly Watering Calendar for Teton County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
The practical takeaway: Mulch reduces watering needs 30-50% by cutting evaporation. Teton County's 19" annual rainfall might be enough for vegetables in some months and not in others — a 2-3" mulch layer evens the swing.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.6 in | 6 days | — | None |
| Feb | 1.1 in | 6 days | — | None |
| Mar | 1.9 in | 7 days | — | None |
| Apr | 1.9 in | 8 days | 2.4 in | High |
| May | 2.2 in | 8 days | 2.1 in | High |
| Jun | 1.3 in | 5 days | 3 in | High |
| Jul | 1.8 in | 5 days | 2.5 in | High |
| Aug | 1.8 in | 7 days | 2.5 in | High |
| Sep | 1.8 in | 6 days | 2.5 in | High |
| Oct | 1.6 in | 6 days | 2.7 in | High |
| Nov | 1.2 in | 5 days | — | None |
| Dec | 1 in | 7 days | — | None |
Annual total: 19.2 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.
Teton County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.6
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 28 | Sep 28 | 92 days |
| Cautious | Jun 22 | Sep 15 | 85 days |
| Average year | Jun 16 | Sep 6 | 82 days |
| Optimistic | May 30 | Aug 19 | 81 days |
| Aggressive (risky) | May 13 | Aug 5 | 84 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.
Yes — growing seasons are getting longer here (about 4.6 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Teton County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Teton 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 Teton County's climate and soil.
County Extension Office
Teton County University of Wyoming Extension Extension Office
Phone: 307-766-5124
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 Teton County
Finding local nurseries & garden centers in Teton County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Teton 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 Teton County WY" or "garden center Teton 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 Teton County WY" or check your extension office and local parks department. Facebook groups like "Teton County Gardeners" or "Wyoming 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 in Teton County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: You can't change the sun. Picking the right day-length-matched varieties for Teton County matters more than any other "fix" you make — and the seed packet tells you (look for "long-day," "short-day," "day-neutral").
Longest Day
15.3 hours
Summer solstice daylight
Shortest Day
8.7 hours
Winter solstice daylight
Peak Sun Hours
10.6 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 | 9.1 hr | 5.2 hr | Short day |
| February | 10.2 hr | 5.6 hr | Short day |
| March | 11.6 hr | 6.8 hr | Short day |
| April | 13.2 hr | 7.8 hr | Neutral |
| May | 14.6 hr | 9.4 hr | Long day |
| June | 15.3 hr | 10.6 hr | Long day |
| July | 15 hr | 10.2 hr | Long day |
| August | 13.8 hr | 9.5 hr | Neutral |
| September | 12.3 hr | 8.5 hr | Neutral |
| October | 10.8 hr | 7.2 hr | Short day |
| November | 9.4 hr | 5.4 hr | Short day |
| December | 8.7 hr | 4.8 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Teton County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
What this means for you: Most root crops germinate well at 50-60°F. Most fruit-bearing crops want 65-75°F. Teton County's monthly soil curve maps these windows to actual months.
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 | -3°F | 3°F | ❄️ Dormant | ~36 weeks |
| Feb | -4°F | 4°F | ❄️ Dormant | ~36 weeks |
| Mar | 8°F | 8°F | ❄️ Dormant | ~36 weeks |
| Apr | 21°F | 20°F | ❄️ Dormant | ~36 weeks |
| May | 35°F | 32°F | ❄️ Dormant | ~36 weeks |
| Jun | 45°F | 40°F | 🐢 Slow | ~24 weeks |
| Jul | 53°F | 46°F | ♻️ Active | ~14 weeks |
| Aug | 52°F | 51°F | ♻️ Active | ~14 weeks |
| Sep | 48°F | 45°F | 🐢 Slow | ~24 weeks |
| Oct | 32°F | 36°F | ❄️ Dormant | ~36 weeks |
| Nov | 16°F | 23°F | ❄️ Dormant | ~36 weeks |
| Dec | 2°F | 13°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 Teton County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Why it matters: The most successful gardeners in high-pressure regions don't spray more — they design around the problem. Crop rotation, companion planting, and resistant varieties beat reactive spraying.
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 | Moderate | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Low | May, Jun, Jul |
| Slugs | Low | 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 Teton County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why this matters: Cover crops fix nitrogen by hosting bacteria that pull it from the air. A vigorous legume cover crop can deliver 50-150 lbs/acre of nitrogen — meaningful for the next vegetable season.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 20 | Jul 12 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | May 16 | Jul 12 | ✓ 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 | Jul 16 | Aug 16 | — | 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 11 | May 26 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 13 | May 26 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 1 | May 26 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 14 | Jun 2 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 17 | Jun 2 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Teton County
For new gardeners: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Teton County's 10.1 mph average means most days are gentle on plants, but consider how a 20+ mph spring gust would affect a flat of seedlings hardened off too quickly.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 16 mph Summer: 10 mph
Fall: 12 mph Winter: 16 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7.4/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Moderate
Some terrain variation (971 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting in Teton County
How much water you can collect, when to collect it, and what size system you need for your garden.
Why this matters: Captured rainwater is better for plants than tap water (no chlorine), works during water restrictions, and reduces stormwater runoff. Teton County's 19" annual rainfall is a meaningful pool — most homes could capture 10,000+ gallons a year with a decent system.
Annual Collection
9,569 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
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
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 19.2 inches of rain per year
- A 1,000 sq ft roof can collect roughly 9,569 gallons annually
- Rainwater harvesting is fully legal in your state
- 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 Teton County
Soil Type
Loam
Soil pH 6.8–7.6 · 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
82-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 22-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 Teton County
95 vegetables that grow well in Zone 4b with planting dates for Teton County.
Show all 95 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | May 5 | Jun 30 | Jul 7 | — | Sep 29 – Nov 3 | 80–100 |
| Amaranth | Apr 14 | Jun 30 | Jul 7 | — | Oct 6 – Nov 24 | 90–120 |
| Arugula | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Sep 22 | 30–50 |
| Asparagus | — | — | Jun 30 | — | — | 730–1095 |
| Beets | — | Jun 9 | — | Jun 14 | Aug 4 – Sep 1 | 50–70 |
| Belgian Endive | May 5 | Jun 9 | Jun 16 | Jun 14 | Oct 6 – Nov 10 | 110–150 |
| Black Beans | — | Jun 30 | — | — | Sep 29 – Nov 17 | 90–120 |
| Bok Choy | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Sep 1 | 40–60 |
| Broccoli | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 18 – Sep 29 | 60–90 |
| Broccoli Rabe | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Sep 1 | 40–60 |
| Brussels Sprouts | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 15 – Nov 10 | 90–130 |
| Butternut Squash | May 5 | Jun 30 | Jul 7 | — | Oct 6 – Nov 10 | 85–110 |
| Cabbage | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 18 – Oct 13 | 60–100 |
| Carrots | — | Jun 9 | — | Jun 14 | Aug 11 – Sep 15 | 60–80 |
| Cauliflower | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Oct 13 | 55–100 |
| Celeriac | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 29 – Nov 3 | 100–120 |
| Celery | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 8 – Nov 3 | 80–120 |
| Celtuce | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 18 – Sep 29 | 60–90 |
| Chard | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Sep 29 | 50–60 |
| Chickpeas | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 8 – Oct 20 | 80–110 |
| Chicory | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 18 – Sep 29 | 60–85 |
| Chinese Cabbage | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Sep 8 | 50–70 |
| Christmas Lima Beans | Apr 14 | Jun 30 | Jul 7 | — | Sep 29 – Nov 3 | 80–100 |
| Collard Greens | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Oct 13 | 55–75 |
| Corn | — | Jun 30 | — | — | Sep 1 – Oct 27 | 60–100 |
| Cress | May 5 | Jun 9 | Jun 16 | Jun 14 | Jun 30 – Jul 21 | 14–21 |
| Crookneck Squash | May 5 | Jun 30 | Jul 7 | — | Aug 25 – Sep 22 | 45–60 |
| Crosne | — | Jun 9 | — | Jun 14 | Nov 10 – Nov 3 | 150–200 |
| Cucumber | May 5 | Jun 30 | Jul 7 | — | Sep 1 – Oct 27 | 50–70 |
| Daikon | — | Jun 9 | — | Jun 14 | Aug 4 – Sep 1 | 50–70 |
| Delicata Squash | May 5 | Jun 30 | Jul 7 | — | Sep 29 – Nov 3 | 80–100 |
| Edamame | — | Jun 30 | — | — | Sep 15 – Oct 27 | 75–100 |
| Endive | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 4 – Sep 8 | 45–65 |
| Escarole | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Sep 8 | 50–70 |
| Fava Beans | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 1 – Oct 13 | 75–100 |
| Fennel | Apr 14 | Jun 30 | Jul 7 | — | Sep 8 – Oct 20 | 60–90 |
| Garlic | — | — | — | Jul 26 | Oct 25 – Dec 20 | 90–240 |
| Green Beans | — | Jun 30 | — | — | Aug 25 – Oct 20 | 50–65 |
| Horseradish | — | — | Jun 30 | — | Nov 3 – Nov 24 | 120–180 |
| Hubbard Squash | May 5 | Jun 30 | Jul 7 | — | Oct 20 – Nov 24 | 100–120 |
| Kabocha | May 5 | Jun 30 | Jul 7 | — | Oct 6 – Nov 3 | 85–100 |
| Kai Lan | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 4 – Sep 1 | 45–60 |
| Kale | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Oct 6 | 50–70 |
| Kidney Beans | — | Jun 30 | — | — | Sep 29 – Nov 3 | 85–110 |
| Kohlrabi | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 4 – Sep 8 | 45–65 |
| Komatsuna | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Aug 25 | 35–50 |
| Leeks | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 15 – Nov 10 | 90–150 |
| Lentils | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 8 – Oct 20 | 80–110 |
| Lettuce | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Sep 29 | 30–60 |
| Lima Beans | — | Jun 30 | — | — | Sep 1 – Oct 13 | 60–90 |
| Mache | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Sep 1 | 40–60 |
| Melon | May 5 | Jun 30 | Jul 7 | — | Sep 15 – Nov 3 | 70–100 |
| Microgreens | May 5 | Jun 9 | Jun 16 | Jun 14 | Jun 23 – Jul 21 | 7–21 |
| Mitsuba | May 5 | Jun 9 | Jun 9 | Jun 14 | Aug 4 – Sep 29 | 50–70 |
| Mizuna | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Aug 18 | 30–45 |
| Mustard Greens | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Sep 22 | 30–50 |
| Napa Cabbage | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Sep 15 | 55–75 |
| Onion | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 15 – Nov 3 | 90–120 |
| Pac Choi | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Aug 25 | 40–55 |
| Parsnip | — | Jun 9 | — | Jun 14 | Sep 22 – Nov 3 | 100–130 |
| Patty Pan Squash | May 5 | Jun 30 | Jul 7 | — | Aug 25 – Sep 22 | 45–60 |
| Peas | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Oct 6 | 55–70 |
| Peppers | Mar 31 | Jun 30 | Jul 7 | — | Sep 8 – Nov 17 | 60–90 |
| Pole Beans | Apr 14 | Jun 30 | Jul 7 | — | Sep 1 – Oct 27 | 55–70 |
| Potatoes | Apr 14 | Jun 30 | Jul 7 | — | Sep 15 – Nov 24 | 70–120 |
| Pumpkin | May 5 | Jun 30 | Jul 7 | — | Oct 6 – Nov 24 | 85–120 |
| Purslane | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Sep 1 | 40–60 |
| Radicchio | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 18 – Sep 22 | 60–80 |
| Radish | — | Jun 9 | — | Jun 14 | Jul 7 – Jul 28 | 22–35 |
| Rhubarb | — | — | Jul 14 | — | — | 365–730 |
| Romanesco | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 1 – Oct 13 | 75–100 |
| Rutabaga | — | Jun 9 | — | Jun 14 | Sep 1 – Oct 6 | 80–100 |
| Salsify | — | Jun 9 | — | Jun 14 | Sep 22 – Nov 3 | 100–130 |
| Savoy Cabbage | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 25 – Oct 20 | 70–110 |
| Scallions | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Sep 8 | 50–70 |
| Scarlet Runner Beans | Apr 14 | Jun 30 | Jul 7 | — | Sep 8 – Oct 13 | 60–80 |
| Shallot | May 5 | Jun 9 | Jun 16 | Jun 14 | Sep 15 – Nov 3 | 90–120 |
| Shiso | Apr 21 | Jun 23 | Jul 7 | — | Sep 1 – Oct 27 | 50–70 |
| Snap Peas | Apr 14 | Jun 30 | Jul 7 | — | Sep 1 – Oct 27 | 55–70 |
| Snow Peas | May 5 | Jun 9 | Jun 16 | Jun 14 | Aug 11 – Oct 6 | 50–65 |
| Soybeans | — | Jun 30 | — | — | Sep 22 – Nov 17 | 80–120 |
| Spaghetti Squash | May 5 | Jun 30 | Jul 7 | — | Oct 6 – Nov 3 | 85–100 |
| Spinach | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Sep 22 | 35–50 |
| Squash (Summer) | May 5 | Jun 30 | Jul 7 | — | Aug 25 – Oct 27 | 45–65 |
| Squash (Winter) | May 5 | Jun 30 | Jul 7 | — | Sep 29 – Nov 24 | 80–120 |
| Sunchoke | — | — | Jun 30 | — | Oct 20 – Nov 24 | 110–150 |
| Sweet Corn | — | Jun 30 | — | — | Sep 1 – Oct 13 | 60–90 |
| Tatsoi | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 21 – Aug 25 | 35–50 |
| Tomatillo | Apr 14 | Jun 30 | Jul 7 | — | Sep 8 – Nov 17 | 60–85 |
| Tomatoes | Apr 14 | Jun 30 | Jul 7 | — | Sep 8 – Nov 17 | 60–85 |
| Turnip | — | Jun 9 | — | Jun 14 | Jul 21 – Aug 25 | 40–60 |
| Watercress | May 5 | Jun 9 | Jun 16 | Jun 14 | Jul 28 – Sep 1 | 40–60 |
| Watermelon | May 5 | Jun 30 | Jul 7 | — | Sep 15 – Nov 3 | 70–100 |
| Wax Beans | — | Jun 30 | — | — | Aug 25 – Oct 20 | 50–65 |
| Zucchini | May 5 | Jun 30 | Jul 7 | — | Aug 25 – Oct 20 | 45–60 |
🍓 Fruits to Grow in Teton County
22 fruits that grow well in Zone 4b with planting dates for Teton County.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jul 14 | — | Oct 13 – Dec 8 | 90–180 |
| Aronia | — | — | Jul 14 | — | — | 730–1095 |
| Blueberries | — | — | Jul 14 | — | — | 730–1095 |
| Cantaloupe | — | — | Jul 14 | — | Sep 22 – Oct 27 | 70–90 |
| Cranberries | — | — | Jul 14 | — | — | 730–1095 |
| Currants | — | — | Jul 14 | — | — | 730–1095 |
| Elderberries | — | — | Jul 14 | — | — | 730–1095 |
| Goji Berries | — | — | Jul 14 | — | — | 730–1095 |
| Gooseberries | — | — | Jul 14 | — | — | 730–1095 |
| Grapes | — | — | Jul 14 | — | — | 730–1095 |
| Ground Cherry | — | — | Jul 14 | — | Sep 22 – Nov 17 | 65–80 |
| Hardy Kiwi | — | — | Jul 14 | — | — | 1095–1825 |
| Haskaps | — | — | Jul 14 | — | — | 730–1095 |
| Honeydew | — | — | Jul 14 | — | Oct 6 – Nov 17 | 80–110 |
| Jostaberry | — | — | Jul 14 | — | — | 730–1095 |
| Lingonberries | — | — | Jul 14 | — | — | 730–1095 |
| Medlar | — | — | Jul 14 | — | — | 1095–1825 |
| Mulberries | — | — | Jul 14 | — | — | 730–1825 |
| Persimmon | — | — | Jul 14 | — | — | 1095–2555 |
| Raspberries | — | — | Jul 14 | — | — | 365–730 |
| Serviceberries | — | — | Jul 14 | — | — | 730–1095 |
| Strawberries | — | — | Jul 14 | — | Oct 13 – Dec 8 | 90–365 |
🌿 Herbs to Grow in Teton County
30 herbs that grow well in Zone 4b with planting dates for Teton County.
Show all 30 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | May 5 | Jun 9 | Jun 9 | Jun 14 | — | 365–730 |
| Anise | May 5 | Jun 9 | Jun 9 | Jun 14 | Sep 8 – Nov 3 | 90–120 |
| Basil | Apr 21 | Jun 23 | Jul 7 | — | Sep 1 – Nov 3 | 50–75 |
| Bee Balm | — | — | Jun 23 | — | Sep 22 – Nov 17 | 90–120 |
| Borage | May 5 | Jun 9 | Jun 9 | Jun 14 | Aug 4 – Sep 22 | 50–60 |
| Caraway | May 5 | Jun 9 | Jun 9 | Jun 14 | — | 365–450 |
| Catnip | — | — | Jun 23 | — | Aug 25 – Oct 27 | 60–80 |
| Chamomile | May 5 | Jun 9 | Jun 9 | Jun 14 | Aug 11 – Oct 20 | 60–90 |
| Chervil | May 5 | Jun 9 | Jun 9 | Jun 14 | Jul 21 – Sep 22 | 40–60 |
| Chives | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Cilantro | May 5 | Jun 9 | Jun 9 | Jun 14 | Jul 21 – Sep 22 | 40–60 |
| Comfrey | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Dill | May 5 | Jun 9 | Jun 9 | Jun 14 | Jul 21 – Sep 22 | 40–60 |
| Fennel (herb) | May 5 | Jun 9 | Jun 9 | Jun 14 | Aug 11 – Oct 20 | 60–90 |
| Garlic Chives | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Horehound | — | — | Jun 23 | — | Sep 8 – Nov 3 | 75–90 |
| Hyssop | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Lemon Balm | — | — | Jun 23 | — | Aug 25 – Oct 13 | 60–70 |
| Lovage | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Mint | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Oregano | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Parsley | May 5 | Jun 9 | Jun 9 | Jun 14 | Aug 11 – Oct 13 | 60–80 |
| Rue | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Sage | — | — | Jun 23 | — | Sep 8 – Nov 3 | 75–90 |
| Savory | — | — | Jun 23 | — | Aug 18 – Oct 13 | 50–70 |
| Sorrel | May 5 | Jun 9 | Jun 9 | Jun 14 | Jul 21 – Sep 22 | 40–60 |
| Tarragon | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Thai Basil | Apr 21 | Jun 23 | Jul 7 | — | Sep 1 – Nov 3 | 50–75 |
| Thyme | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Valerian | — | — | Jun 23 | — | Oct 27 – Nov 17 | 120–180 |
🌸 Flowers to Grow in Teton County
49 flowers that grow well in Zone 4b with planting dates for Teton County.
Show all 49 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Apr 28 | Jun 23 | Jun 23 | — | Aug 18 – Nov 3 | 60–75 |
| Alliums | — | — | — | Jul 26 | Aug 30 – Sep 27 | 28–42 |
| Astilbe | Apr 7 | — | Jun 30 | — | Sep 22 – Nov 17 | 70–100 |
| Bachelor's Button | Apr 28 | Jun 2 | Jun 16 | — | Aug 18 – Oct 20 | 60–90 |
| Begonias | Mar 31 | — | Jun 23 | — | Sep 1 – Nov 10 | 70–90 |
| Black-eyed Susan | Apr 7 | Jun 16 | Jun 30 | — | Sep 22 – Dec 8 | 60–80 |
| Bleeding Hearts | Apr 7 | — | Jun 30 | — | Aug 25 – Oct 6 | 60–90 |
| Calendula | Apr 28 | Jun 2 | Jun 16 | — | Aug 4 – Oct 20 | 50–70 |
| Celosia | May 12 | Jun 30 | Jun 30 | — | Sep 1 – Nov 17 | 60–90 |
| Columbine | Apr 7 | Jun 30 | Jun 30 | — | Aug 25 – Oct 13 | 70–100 |
| Coreopsis | Apr 7 | Jun 23 | Jun 30 | — | Sep 15 – Dec 8 | 60–80 |
| Cosmos | May 19 | Jun 23 | Jun 23 | — | Sep 1 – Nov 24 | 60–90 |
| Crocus | — | — | — | Jul 26 | May 31 – Jun 28 | 10–20 |
| Daffodils | — | — | — | Jul 26 | Jun 7 – Jul 5 | 20–40 |
| Dahlias | May 19 | Jun 30 | Jun 30 | — | Sep 29 – Dec 8 | 70–120 |
| Daylily | Apr 7 | — | Jun 30 | — | Sep 29 – Dec 8 | 60–90 |
| Dianthus | Apr 14 | May 26 | Jun 9 | — | Jul 28 – Oct 6 | 60–80 |
| Echinacea (Purple Coneflower) | Apr 7 | Jun 30 | Jun 30 | — | Sep 29 – Dec 8 | 70–90 |
| Foxglove | Apr 7 | Jun 30 | Jun 30 | — | Aug 25 – Oct 6 | 80–120 |
| Gaillardia (Blanket Flower) | Apr 21 | Jun 30 | Jun 30 | — | Sep 8 – Dec 15 | 70–100 |
| Geraniums | Mar 31 | — | Jun 23 | — | Sep 1 – Nov 10 | 70–100 |
| Gladiolus | — | Jun 23 | Jun 23 | — | Sep 22 – Dec 1 | 70–100 |
| Hostas | Mar 31 | — | Jun 30 | — | Sep 29 – Dec 8 | 60–90 |
| Hyacinths | — | — | — | Jul 26 | Jun 28 – Jul 19 | 14–28 |
| Hydrangeas | Mar 31 | — | Jun 30 | — | Sep 22 – Nov 24 | 90–150 |
| Impatiens | Apr 14 | — | Jun 30 | — | Sep 15 – Nov 17 | 60–75 |
| Irises | — | Division | Jun 30 | — | Aug 25 – Sep 29 | 60–100 |
| Larkspur | — | May 19 | — | — | Jul 28 – Sep 15 | 60–90 |
| Lilies | — | Division | Jun 30 | — | Sep 22 – Nov 24 | 70–120 |
| Lobelia | Apr 7 | — | Jun 16 | — | Aug 11 – Oct 13 | 70–80 |
| Lupine | Apr 7 | Jun 30 | Jun 30 | — | Aug 25 – Oct 6 | 75–100 |
| Marigolds | May 5 | Jun 23 | Jun 23 | — | Aug 18 – Nov 3 | 50–70 |
| Nasturtium | May 19 | Jun 23 | Jun 23 | — | Aug 18 – Nov 10 | 55–65 |
| Pansy | Mar 31 | — | Jun 16 | — | Aug 11 – Sep 29 | 70–90 |
| Peonies | — | Division | Jun 30 | — | Sep 8 – Oct 13 | 90–120 |
| Petunia | Apr 14 | — | Jun 23 | — | Sep 1 – Nov 17 | 70–90 |
| Phlox | Apr 7 | Jun 30 | Jun 30 | — | Sep 22 – Dec 1 | 80–110 |
| Portulaca | May 12 | Jun 30 | Jun 30 | — | Aug 18 – Nov 3 | 50–70 |
| Roses | Mar 31 | — | Jun 30 | — | Sep 22 – Dec 8 | 90–180 |
| Salvia | Apr 14 | — | Jun 23 | — | Sep 1 – Nov 10 | 70–90 |
| Sedum (Stonecrop) | Apr 7 | — | Jun 30 | — | Nov 3 – Dec 29 | 60–90 |
| Snapdragon | Apr 7 | — | Jun 16 | — | Aug 25 – Oct 20 | 70–100 |
| Sunflower | May 26 | Jun 23 | Jun 23 | — | Sep 15 – Nov 17 | 70–100 |
| Sweet Alyssum | Apr 28 | Jun 9 | Jun 16 | — | Jul 28 – Sep 29 | 45–60 |
| Sweet Pea | May 5 | May 12 | Jun 16 | — | Sep 8 – Oct 27 | 65–85 |
| Tulips | — | — | — | Jul 26 | Jun 21 – Jul 12 | 15–30 |
| Vinca (Annual) | Mar 31 | — | Jun 30 | — | Sep 8 – Nov 17 | 70–90 |
| Yarrow | Apr 7 | Jun 16 | Jun 30 | — | Sep 15 – Dec 8 | 60–90 |
| Zinnia | May 19 | Jun 23 | Jun 23 | — | Sep 1 – Nov 17 | 60–70 |
Monthly Planting Guide for Teton County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Teton County.
Frequently Asked Questions
What planting zone is Teton County, WY?
Teton County is in USDA Hardiness Zone 4b. 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 Teton County, WY?
Based on 31 years of NOAA weather station data, the median last spring frost in Teton County falls around June 16. In 8 out of 10 years, last frost lands between May 13 and June 28 — a 45-day window of variability. Use June 28 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Teton County, WY?
The median first fall frost in Teton County arrives around September 6. In cold years it can arrive as early as August 5; in mild years as late as September 28. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Teton County?
Teton County has a frost-free growing season of approximately 82 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 4.64 days per decade.
What is the soil like in Teton County for gardening?
Teton County has predominantly Loam soil with a pH range of 6.8–7.6 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Teton County?
Teton County has commercial agriculture that includes Hay, Wheat, Cattle, Barley. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Teton County a good location for home gardening?
Teton County scores 29/100 (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.
Your Teton County Garden Planner — Free
A 22-page printable planner built for Teton County (Zone 4b). 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