Converse County, WY — Planting Guide
Converse County is in USDA Zone 4b. The average last spring frost is June 4 and the first fall frost is September 18, giving you a growing season of approximately 106 days.
At an elevation of 6,089 ft, Converse County receives approximately 16.3 in of rainfall annually. Summer highs average 81°F with winter lows around 8°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 36 days year to year — ranging from May 11 in warm years to June 17 in cold years. The growing season is trending longer by about 1.58 days per decade. Converse County scores 33/100 (Challenging) on the Microclimate Index.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
June 4
🍂 First Frost
September 18
📅 Growing Season
106 days
⛰️ Elevation
6,089 ft
🌧️ Annual Rainfall
16.3 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 | 1.2 in | 7 days | — | None |
| Feb | 0.8 in | 6 days | — | None |
| Mar | 1.5 in | 7 days | — | None |
| Apr | 1.7 in | 8 days | 2.6 in | High |
| May | 2 in | 8 days | 2.3 in | High |
| Jun | 1.2 in | 4 days | 3.1 in | Critical |
| Jul | 1.5 in | 6 days | 2.8 in | High |
| Aug | 1.5 in | 7 days | 2.8 in | High |
| Sep | 1.3 in | 6 days | 3 in | High |
| Oct | 1.6 in | 6 days | 2.7 in | High |
| Nov | 1.1 in | 6 days | — | None |
| Dec | 0.9 in | 7 days | — | None |
Annual total: 16.3 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.
Converse County Soil Profile
Soil Type
Loam
Soil pH
6.6-8.3
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 17 | Oct 3 | 108 days |
| Cautious | Jun 10 | Sep 21 | 103 days |
| Average year | Jun 4 | Sep 18 | 106 days |
| Optimistic | May 21 | Sep 10 | 112 days |
| Aggressive (risky) | May 11 | Aug 31 | 112 days |
Not very — frost dates can vary by ±36 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 1.6 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Converse County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Converse 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 Converse County's climate and soil.
County Extension Office
Converse 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 Converse County
Finding local nurseries & garden centers in Converse County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Converse 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 Converse County WY" or "garden center Converse 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 Converse County WY" or check your extension office and local parks department. Facebook groups like "Converse 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
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
15.2 hours
Summer solstice daylight
Shortest Day
8.8 hours
Winter solstice daylight
Peak Sun Hours
10.9 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 | 9.2 hr | 5.1 hr | Short day |
| February | 10.3 hr | 6.2 hr | Short day |
| March | 11.6 hr | 6.6 hr | Short day |
| April | 13.2 hr | 7.8 hr | Neutral |
| May | 14.5 hr | 9.1 hr | Long day |
| June | 15.2 hr | 10.9 hr | Long day |
| July | 14.9 hr | 10.4 hr | Long day |
| August | 13.8 hr | 9.4 hr | Neutral |
| September | 12.3 hr | 8.7 hr | Neutral |
| October | 10.8 hr | 7.1 hr | Short day |
| November | 9.5 hr | 5.5 hr | Short day |
| December | 8.8 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 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 | -3°F | 7°F | ❄️ Dormant | ~36 weeks |
| Feb | -3°F | 6°F | ❄️ Dormant | ~36 weeks |
| Mar | 9°F | 11°F | ❄️ Dormant | ~36 weeks |
| Apr | 23°F | 22°F | ❄️ Dormant | ~36 weeks |
| May | 37°F | 33°F | ❄️ Dormant | ~36 weeks |
| Jun | 47°F | 41°F | 🐢 Slow | ~24 weeks |
| Jul | 55°F | 50°F | ♻️ Active | ~14 weeks |
| Aug | 54°F | 52°F | ♻️ Active | ~14 weeks |
| Sep | 48°F | 47°F | 🐢 Slow | ~24 weeks |
| Oct | 36°F | 39°F | ❄️ Dormant | ~36 weeks |
| Nov | 19°F | 27°F | ❄️ Dormant | ~36 weeks |
| Dec | 4°F | 15°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 Converse 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 | 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 Converse 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 11 | Jul 17 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | May 8 | Jul 10 | ✓ 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 21 | Aug 28 | — | 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 25 | May 21 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 27 | May 21 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 16 | May 21 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 21 | May 21 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 20 | May 14 | — | 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: 16 mph Summer: 12 mph
Fall: 11 mph Winter: 16 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7.1/10
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 1,760 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
8,123 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 2,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Mar, Apr, May, Oct
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, 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 16.3 inches of rain per year
- A 1,000 sq ft roof can collect roughly 8,123 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 Converse County
Soil Type
Loam
Soil pH 6.6–8.3 · 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
106-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 Converse County
96 vegetables that grow well in Zone 4b with planting dates for Converse County.
Show all 96 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Apr 23 | Jun 18 | Jun 25 | Sep 17 – Oct 22 | 80–100 |
| Amaranth | Apr 2 | Jun 18 | Jun 25 | Sep 24 – Nov 12 | 90–120 |
| Arugula | Apr 23 | May 28 | Jun 4 | Jul 9 – Sep 10 | 30–50 |
| Asparagus | — | — | Jun 18 | — | 730–1095 |
| Beets | — | May 28 | — | Jul 23 – Aug 20 | 50–70 |
| Belgian Endive | Apr 23 | May 28 | Jun 4 | Sep 24 – Oct 29 | 110–150 |
| Black Beans | — | Jun 18 | — | Sep 17 – Nov 5 | 90–120 |
| Bok Choy | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 20 | 40–60 |
| Broccoli | Apr 23 | May 28 | Jun 4 | Aug 6 – Sep 17 | 60–90 |
| Broccoli Rabe | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 20 | 40–60 |
| Brussels Sprouts | Apr 23 | May 28 | Jun 4 | Sep 3 – Oct 29 | 90–130 |
| Butternut Squash | Apr 23 | Jun 18 | Jun 25 | Sep 24 – Oct 29 | 85–110 |
| Cabbage | Apr 23 | May 28 | Jun 4 | Aug 6 – Oct 1 | 60–100 |
| Carrots | — | May 28 | — | Jul 30 – Sep 3 | 60–80 |
| Cauliflower | Apr 23 | May 28 | Jun 4 | Jul 30 – Oct 1 | 55–100 |
| Celeriac | Apr 23 | May 28 | Jun 4 | Sep 17 – Oct 22 | 100–120 |
| Celery | Apr 23 | May 28 | Jun 4 | Aug 27 – Oct 22 | 80–120 |
| Celtuce | Apr 23 | May 28 | Jun 4 | Aug 6 – Sep 17 | 60–90 |
| Chard | Apr 23 | May 28 | Jun 4 | Jul 30 – Sep 17 | 50–60 |
| Chickpeas | Apr 23 | May 28 | Jun 4 | Aug 27 – Oct 8 | 80–110 |
| Chicory | Apr 23 | May 28 | Jun 4 | Aug 6 – Sep 17 | 60–85 |
| Chinese Cabbage | Apr 23 | May 28 | Jun 4 | Jul 30 – Aug 27 | 50–70 |
| Christmas Lima Beans | Apr 2 | Jun 18 | Jun 25 | Sep 17 – Oct 22 | 80–100 |
| Collard Greens | Apr 23 | May 28 | Jun 4 | Jul 30 – Oct 1 | 55–75 |
| Corn | — | Jun 18 | — | Aug 20 – Oct 15 | 60–100 |
| Cress | Apr 23 | May 28 | Jun 4 | Jun 18 – Jul 9 | 14–21 |
| Crookneck Squash | Apr 23 | Jun 18 | Jun 25 | Aug 13 – Sep 10 | 45–60 |
| Crosne | — | May 28 | — | Oct 29 – Oct 22 | 150–200 |
| Cucumber | Apr 23 | Jun 18 | Jun 25 | Aug 20 – Oct 15 | 50–70 |
| Daikon | — | May 28 | — | Jul 23 – Aug 20 | 50–70 |
| Delicata Squash | Apr 23 | Jun 18 | Jun 25 | Sep 17 – Oct 22 | 80–100 |
| Edamame | — | Jun 18 | — | Sep 3 – Oct 15 | 75–100 |
| Endive | Apr 23 | May 28 | Jun 4 | Jul 23 – Aug 27 | 45–65 |
| Escarole | Apr 23 | May 28 | Jun 4 | Jul 30 – Aug 27 | 50–70 |
| Fava Beans | Apr 23 | May 28 | Jun 4 | Aug 20 – Oct 1 | 75–100 |
| Fennel | Apr 2 | Jun 18 | Jun 25 | Aug 27 – Oct 8 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | Jun 18 | — | Aug 13 – Oct 8 | 50–65 |
| Horseradish | — | — | Jun 18 | Oct 22 – Nov 12 | 120–180 |
| Hubbard Squash | Apr 23 | Jun 18 | Jun 25 | Oct 8 – Nov 12 | 100–120 |
| Kabocha | Apr 23 | Jun 18 | Jun 25 | Sep 24 – Oct 22 | 85–100 |
| Kai Lan | Apr 23 | May 28 | Jun 4 | Jul 23 – Aug 20 | 45–60 |
| Kale | Apr 23 | May 28 | Jun 4 | Jul 30 – Sep 24 | 50–70 |
| Kidney Beans | — | Jun 18 | — | Sep 17 – Oct 22 | 85–110 |
| Kohlrabi | Apr 23 | May 28 | Jun 4 | Jul 23 – Aug 27 | 45–65 |
| Komatsuna | Apr 23 | May 28 | Jun 4 | Jul 9 – Aug 13 | 35–50 |
| Leeks | Apr 23 | May 28 | Jun 4 | Sep 3 – Oct 29 | 90–150 |
| Lentils | Apr 23 | May 28 | Jun 4 | Aug 27 – Oct 8 | 80–110 |
| Lettuce | Apr 23 | May 28 | Jun 4 | Jul 9 – Sep 17 | 30–60 |
| Lima Beans | — | Jun 18 | — | Aug 20 – Oct 1 | 60–90 |
| Mache | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 20 | 40–60 |
| Melon | Apr 23 | Jun 18 | Jun 25 | Sep 3 – Oct 22 | 70–100 |
| Microgreens | Apr 23 | May 28 | Jun 4 | Jun 11 – Jul 9 | 7–21 |
| Mitsuba | Apr 23 | May 28 | May 28 | Jul 23 – Sep 17 | 50–70 |
| Mizuna | Apr 23 | May 28 | Jun 4 | Jul 9 – Aug 6 | 30–45 |
| Mustard Greens | Apr 23 | May 28 | Jun 4 | Jul 9 – Sep 10 | 30–50 |
| Napa Cabbage | Apr 23 | May 28 | Jun 4 | Jul 30 – Sep 3 | 55–75 |
| Onion | Apr 23 | May 28 | Jun 4 | Sep 3 – Oct 22 | 90–120 |
| Pac Choi | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 13 | 40–55 |
| Parsnip | — | May 28 | — | Sep 10 – Oct 22 | 100–130 |
| Patty Pan Squash | Apr 23 | Jun 18 | Jun 25 | Aug 13 – Sep 10 | 45–60 |
| Peas | Apr 23 | May 28 | Jun 4 | Jul 30 – Sep 24 | 55–70 |
| Peppers | Mar 19 | Jun 18 | Jun 25 | Aug 27 – Nov 5 | 60–90 |
| Pole Beans | Apr 2 | Jun 18 | Jun 25 | Aug 20 – Oct 15 | 55–70 |
| Potatoes | Apr 2 | Jun 18 | Jun 25 | Sep 3 – Nov 12 | 70–120 |
| Pumpkin | Apr 23 | Jun 18 | Jun 25 | Sep 24 – Nov 12 | 85–120 |
| Purslane | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 20 | 40–60 |
| Radicchio | Apr 23 | May 28 | Jun 4 | Aug 6 – Sep 10 | 60–80 |
| Radish | — | May 28 | — | Jun 25 – Jul 16 | 22–35 |
| Rhubarb | — | — | Jul 2 | — | 365–730 |
| Romanesco | Apr 23 | May 28 | Jun 4 | Aug 20 – Oct 1 | 75–100 |
| Rutabaga | — | May 28 | — | Aug 20 – Sep 24 | 80–100 |
| Salsify | — | May 28 | — | Sep 10 – Oct 22 | 100–130 |
| Savoy Cabbage | Apr 23 | May 28 | Jun 4 | Aug 13 – Oct 8 | 70–110 |
| Scallions | Apr 23 | May 28 | Jun 4 | Jul 30 – Aug 27 | 50–70 |
| Scarlet Runner Beans | Apr 2 | Jun 18 | Jun 25 | Aug 27 – Oct 1 | 60–80 |
| Shallot | Apr 23 | May 28 | Jun 4 | Sep 3 – Oct 22 | 90–120 |
| Shiso | Apr 9 | Jun 11 | Jun 25 | Aug 20 – Oct 15 | 50–70 |
| Snap Peas | Apr 2 | Jun 18 | Jun 25 | Aug 20 – Oct 15 | 55–70 |
| Snow Peas | Apr 23 | May 28 | Jun 4 | Jul 30 – Sep 24 | 50–65 |
| Soybeans | — | Jun 18 | — | Sep 10 – Nov 5 | 80–120 |
| Spaghetti Squash | Apr 23 | Jun 18 | Jun 25 | Sep 24 – Oct 22 | 85–100 |
| Spinach | Apr 23 | May 28 | Jun 4 | Jul 9 – Sep 10 | 35–50 |
| Squash (Summer) | Apr 23 | Jun 18 | Jun 25 | Aug 13 – Oct 15 | 45–65 |
| Squash (Winter) | Apr 23 | Jun 18 | Jun 25 | Sep 17 – Nov 12 | 80–120 |
| Sunchoke | — | — | Jun 18 | Oct 8 – Nov 12 | 110–150 |
| Sunflower | Apr 2 | Jun 18 | Jun 25 | Sep 3 – Oct 22 | 70–100 |
| Sweet Corn | — | Jun 18 | — | Aug 20 – Oct 1 | 60–90 |
| Tatsoi | Apr 23 | May 28 | Jun 4 | Jul 9 – Aug 13 | 35–50 |
| Tomatillo | Apr 2 | Jun 18 | Jun 25 | Aug 27 – Nov 5 | 60–85 |
| Tomatoes | Apr 2 | Jun 18 | Jun 25 | Aug 27 – Nov 5 | 60–85 |
| Turnip | — | May 28 | — | Jul 9 – Aug 13 | 40–60 |
| Watercress | Apr 23 | May 28 | Jun 4 | Jul 16 – Aug 20 | 40–60 |
| Watermelon | Apr 23 | Jun 18 | Jun 25 | Sep 3 – Oct 22 | 70–100 |
| Wax Beans | — | Jun 18 | — | Aug 13 – Oct 8 | 50–65 |
| Zucchini | Apr 23 | Jun 18 | Jun 25 | Aug 13 – Oct 8 | 45–60 |
🍓 Fruits to Grow in Converse County
22 fruits that grow well in Zone 4b with planting dates for Converse County.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jul 2 | Oct 1 – Nov 26 | 90–180 |
| Aronia | — | — | Jul 2 | — | 730–1095 |
| Blueberries | — | — | Jul 2 | — | 730–1095 |
| Cantaloupe | — | — | Jul 2 | Sep 10 – Oct 15 | 70–90 |
| Cranberries | — | — | Jul 2 | — | 730–1095 |
| Currants | — | — | Jul 2 | — | 730–1095 |
| Elderberries | — | — | Jul 2 | — | 730–1095 |
| Goji Berries | — | — | Jul 2 | — | 730–1095 |
| Gooseberries | — | — | Jul 2 | — | 730–1095 |
| Grapes | — | — | Jul 2 | — | 730–1095 |
| Ground Cherry | — | — | Jul 2 | Sep 10 – Nov 5 | 65–80 |
| Hardy Kiwi | — | — | Jul 2 | — | 1095–1825 |
| Haskaps | — | — | Jul 2 | — | 730–1095 |
| Honeydew | — | — | Jul 2 | Sep 24 – Nov 5 | 80–110 |
| Jostaberry | — | — | Jul 2 | — | 730–1095 |
| Lingonberries | — | — | Jul 2 | — | 730–1095 |
| Medlar | — | — | Jul 2 | — | 1095–1825 |
| Mulberries | — | — | Jul 2 | — | 730–1825 |
| Persimmon | — | — | Jul 2 | — | 1095–2555 |
| Raspberries | — | — | Jul 2 | — | 365–730 |
| Serviceberries | — | — | Jul 2 | — | 730–1095 |
| Strawberries | — | — | Jul 2 | Oct 1 – Nov 26 | 90–365 |
🌿 Herbs to Grow in Converse County
32 herbs that grow well in Zone 4b with planting dates for Converse County.
Show all 32 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Apr 23 | May 28 | May 28 | — | 365–730 |
| Anise | Apr 23 | May 28 | May 28 | Aug 27 – Oct 22 | 90–120 |
| Basil | Apr 9 | Jun 11 | Jun 25 | Aug 20 – Oct 22 | 50–75 |
| Bee Balm | — | — | Jun 11 | Sep 10 – Nov 5 | 90–120 |
| Borage | Apr 23 | May 28 | May 28 | Jul 23 – Sep 10 | 50–60 |
| Caraway | Apr 23 | May 28 | May 28 | — | 365–450 |
| Catnip | — | — | Jun 11 | Aug 13 – Oct 15 | 60–80 |
| Chamomile | Apr 23 | May 28 | May 28 | Jul 30 – Oct 8 | 60–90 |
| Chervil | Apr 23 | May 28 | May 28 | Jul 9 – Sep 10 | 40–60 |
| Chives | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Cilantro | Apr 23 | May 28 | May 28 | Jul 9 – Sep 10 | 40–60 |
| Comfrey | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Dill | Apr 23 | May 28 | May 28 | Jul 9 – Sep 10 | 40–60 |
| Echinacea | — | — | Jun 11 | Oct 15 – Nov 5 | 120–180 |
| Fennel (herb) | Apr 23 | May 28 | May 28 | Jul 30 – Oct 8 | 60–90 |
| Garlic Chives | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Horehound | — | — | Jun 11 | Aug 27 – Oct 22 | 75–90 |
| Hyssop | — | — | Jun 11 | Aug 20 – Oct 22 | 70–90 |
| Lemon Balm | — | — | Jun 11 | Aug 13 – Oct 1 | 60–70 |
| Lovage | — | — | Jun 11 | Aug 20 – Oct 22 | 70–90 |
| Mint | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Oregano | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Parsley | Apr 23 | May 28 | May 28 | Jul 30 – Oct 1 | 60–80 |
| Rue | — | — | Jun 11 | Aug 20 – Oct 22 | 70–90 |
| Sage | — | — | Jun 11 | Aug 27 – Oct 22 | 75–90 |
| Savory | — | — | Jun 11 | Aug 6 – Oct 1 | 50–70 |
| Sorrel | Apr 23 | May 28 | May 28 | Jul 9 – Sep 10 | 40–60 |
| Tarragon | — | — | Jun 11 | Aug 13 – Oct 22 | 60–90 |
| Thai Basil | Apr 9 | Jun 11 | Jun 25 | Aug 20 – Oct 22 | 50–75 |
| Thyme | — | — | Jun 11 | Aug 20 – Oct 22 | 70–90 |
| Valerian | — | — | Jun 11 | Oct 15 – Nov 5 | 120–180 |
| Yarrow | — | — | Jun 11 | Sep 10 – Nov 5 | 90–120 |
Monthly Planting Guide for Converse County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Converse County.
Frequently Asked Questions
What planting zone is Converse County, WY?
Converse 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 Converse County, WY?
Based on 31 years of NOAA weather station data, the median last spring frost in Converse County falls around June 4. In 8 out of 10 years, last frost lands between May 11 and June 17 — a 36-day window of variability. Use June 17 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Converse County, WY?
The median first fall frost in Converse County arrives around September 18. In cold years it can arrive as early as August 31; in mild years as late as October 3. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Converse County?
Converse County has a frost-free growing season of approximately 106 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 1.58 days per decade.
What is the soil like in Converse County for gardening?
Converse County has predominantly Loam soil with a pH range of 6.6–8.3 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Converse County?
Converse County has commercial agriculture that includes Cattle, Wheat, Hay, 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 Converse County a good location for home gardening?
Converse County scores 33/100 (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 Converse County gardeners in Zone 4b 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.
