Natrona County, WY — Planting Guide
Natrona County is in USDA Zone 5a. The average last spring frost is May 19 and the first fall frost is September 23, giving you a growing season of approximately 127 days.
At an elevation of 6,332 ft, Natrona County receives approximately 13.7 in of rainfall annually. Summer highs average 83°F with winter lows around 6°F. The predominant soil type is Loam.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 19
🍂 First Frost
September 23
📅 Growing Season
127 days
⛰️ Elevation
6,332 ft
🌧️ Annual Rainfall
13.7 in
Natrona County, WY
Short season
127 days
Last Spring Frost
May 19
➔
127 growing days
➔
First Fall Frost
September 23
Natrona County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Zone 5a
Frost Countdown
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Last Frost: May 19
First Frost: Sep 23
Soil & Growing Conditions in Natrona County
Soil Type
Loam
Ideal for most crops — holds moisture and nutrients while draining well.
Watering Needs
With 13.7 inches annually, regular irrigation is essential. Drip systems and heavy mulching conserve water.
Season Tips
127-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
Soil Test Kit
$12-25
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Digital pH Meter
$10-20
Get instant, accurate soil pH readings to fine-tune your amendments.
Organic Compost
$8-30
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Natrona County
105 vegetables that grow well in Zone 5a with planting dates for Natrona County.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Apr 14 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Amaranth | Mar 24 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 90–120 |
| Arugula | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Aug 25 | 30–50 |
| Asparagus | — | — | Jun 2 | — | — | 730–1095 |
| Beets | — | May 5 | — | Jul 15 | Jun 30 – Jul 28 | 50–70 |
| Belgian Endive | Apr 14 | May 5 | May 19 | Jul 15 | Sep 8 – Nov 3 | 110–150 |
| Bitter Melon | Mar 24 | May 26 | Jun 2 | — | Aug 4 – Sep 15 | 60–90 |
| Black Beans | — | May 26 | — | — | Aug 25 – Oct 13 | 90–120 |
| Bok Choy | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Aug 4 | 40–60 |
| Broccoli | Apr 14 | May 5 | May 19 | Jul 15 | Jul 21 – Sep 1 | 60–90 |
| Broccoli Rabe | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Aug 4 | 40–60 |
| Brussels Sprouts | Apr 14 | May 5 | May 19 | Jul 15 | Aug 18 – Oct 13 | 90–130 |
| Butternut Squash | Apr 14 | May 26 | Jun 2 | — | Sep 1 – Oct 6 | 85–110 |
| Cabbage | Apr 14 | May 5 | May 19 | Jul 15 | Jul 21 – Sep 15 | 60–100 |
| Calabash | Mar 24 | May 26 | Jun 2 | — | Aug 25 – Oct 20 | 80–120 |
| Carrots | — | May 5 | — | Jul 15 | Jul 7 – Aug 11 | 60–80 |
| Cauliflower | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 15 | 55–100 |
| Celeriac | Apr 14 | May 5 | May 19 | Jul 15 | Sep 1 – Oct 6 | 100–120 |
| Celery | Apr 14 | May 5 | May 19 | Jul 15 | Aug 11 – Oct 6 | 80–120 |
| Celtuce | Apr 14 | May 5 | May 19 | Jul 15 | Jul 21 – Sep 1 | 60–90 |
| Chard | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 1 | 50–60 |
| Chickpeas | Apr 14 | May 5 | May 19 | Jul 15 | Aug 11 – Sep 22 | 80–110 |
| Chicory | Apr 14 | May 5 | May 19 | Jul 15 | Jul 21 – Sep 1 | 60–85 |
| Chinese Cabbage | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Aug 11 | 50–70 |
| Christmas Lima Beans | Mar 24 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Collard Greens | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 15 | 55–75 |
| Corn | — | May 26 | — | — | Jul 28 – Sep 22 | 60–100 |
| Cowpeas | — | May 26 | — | — | Jul 28 – Sep 8 | 60–90 |
| Cress | Apr 14 | May 5 | May 19 | Jul 15 | Jun 2 – Jun 23 | 14–21 |
| Crookneck Squash | Apr 14 | May 26 | Jun 2 | — | Jul 21 – Aug 18 | 45–60 |
| Crosne | — | May 5 | — | Jul 15 | Oct 6 – Oct 20 | 150–200 |
| Cucumber | Apr 14 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 50–70 |
| Daikon | — | May 5 | — | Jul 15 | Jun 30 – Jul 28 | 50–70 |
| Delicata Squash | Apr 14 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Edamame | — | May 26 | — | — | Aug 11 – Sep 22 | 75–100 |
| Eggplant | Mar 10 | May 26 | Jun 2 | — | Aug 11 – Oct 13 | 65–85 |
| Endive | Apr 14 | May 5 | May 19 | Jul 15 | Jul 7 – Aug 11 | 45–65 |
| Escarole | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Aug 11 | 50–70 |
| Fava Beans | Apr 14 | May 5 | May 19 | Jul 15 | Aug 4 – Sep 15 | 75–100 |
| Fennel | Mar 24 | May 26 | Jun 2 | — | Aug 4 – Sep 15 | 60–90 |
| Garlic | — | — | — | Aug 12 | Nov 11 – Jan 27 | 90–240 |
| Green Beans | — | May 26 | — | — | Jul 21 – Sep 15 | 50–65 |
| Horseradish | — | — | Jun 2 | — | Oct 6 – Nov 17 | 120–180 |
| Hot Peppers | Mar 10 | May 26 | Jun 2 | — | Aug 11 – Nov 17 | 70–120 |
| Hubbard Squash | Apr 14 | May 26 | Jun 2 | — | Sep 15 – Oct 20 | 100–120 |
| Kabocha | Apr 14 | May 26 | Jun 2 | — | Sep 1 – Sep 29 | 85–100 |
| Kai Lan | Apr 14 | May 5 | May 19 | Jul 15 | Jul 7 – Aug 4 | 45–60 |
| Kale | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 8 | 50–70 |
| Kidney Beans | — | May 26 | — | — | Aug 25 – Sep 29 | 85–110 |
| Kohlrabi | Apr 14 | May 5 | May 19 | Jul 15 | Jul 7 – Aug 11 | 45–65 |
| Komatsuna | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Jul 28 | 35–50 |
| Leeks | Apr 14 | May 5 | May 19 | Jul 15 | Aug 18 – Nov 3 | 90–150 |
| Lentils | Apr 14 | May 5 | May 19 | Jul 15 | Aug 11 – Sep 22 | 80–110 |
| Lettuce | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Sep 1 | 30–60 |
| Lima Beans | — | May 26 | — | — | Jul 28 – Sep 8 | 60–90 |
| Mache | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Aug 4 | 40–60 |
| Melon | Apr 14 | May 26 | Jun 2 | — | Aug 11 – Sep 29 | 70–100 |
| Microgreens | Apr 14 | May 5 | May 19 | Jul 15 | May 26 – Jun 23 | 7–21 |
| Mitsuba | Apr 14 | May 5 | May 12 | Jul 15 | Jul 7 – Sep 1 | 50–70 |
| Mizuna | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Jul 21 | 30–45 |
| Mustard Greens | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Aug 25 | 30–50 |
| Napa Cabbage | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Aug 18 | 55–75 |
| New Zealand Spinach | Mar 24 | May 26 | Jun 2 | — | Jul 28 – Aug 25 | 55–70 |
| Okra | Mar 24 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 50–65 |
| Onion | Apr 14 | May 5 | May 19 | Jul 15 | Aug 18 – Oct 6 | 90–120 |
| Pac Choi | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Jul 28 | 40–55 |
| Parsnip | — | May 5 | — | Jul 15 | Aug 18 – Sep 29 | 100–130 |
| Patty Pan Squash | Apr 14 | May 26 | Jun 2 | — | Jul 21 – Aug 18 | 45–60 |
| Peas | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 8 | 55–70 |
| Peppers | Mar 10 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–90 |
| Pole Beans | Mar 24 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 55–70 |
| Potatoes | Mar 24 | May 26 | Jun 2 | — | Aug 11 – Oct 20 | 70–120 |
| Pumpkin | Apr 14 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 85–120 |
| Purslane | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Aug 4 | 40–60 |
| Radicchio | Apr 14 | May 5 | May 19 | Jul 15 | Jul 21 – Aug 25 | 60–80 |
| Radish | — | May 5 | — | Jul 15 | Jun 2 – Jun 23 | 22–35 |
| Rhubarb | — | — | Jun 9 | — | — | 365–730 |
| Romanesco | Apr 14 | May 5 | May 19 | Jul 15 | Aug 4 – Sep 15 | 75–100 |
| Rutabaga | — | May 5 | — | Jul 15 | Jul 28 – Sep 1 | 80–100 |
| Salsify | — | May 5 | — | Jul 15 | Aug 18 – Sep 29 | 100–130 |
| Savoy Cabbage | Apr 14 | May 5 | May 19 | Jul 15 | Jul 28 – Sep 22 | 70–110 |
| Scallions | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Aug 11 | 50–70 |
| Scarlet Runner Beans | Mar 24 | May 26 | Jun 2 | — | Aug 4 – Sep 8 | 60–80 |
| Shallot | Apr 14 | May 5 | May 19 | Jul 15 | Aug 18 – Oct 6 | 90–120 |
| Shiso | Mar 31 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 50–70 |
| Snap Peas | Mar 24 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 55–70 |
| Snow Peas | Apr 14 | May 5 | May 19 | Jul 15 | Jul 14 – Sep 8 | 50–65 |
| Soybeans | — | May 26 | — | — | Aug 18 – Oct 13 | 80–120 |
| Spaghetti Squash | Apr 14 | May 26 | Jun 2 | — | Sep 1 – Sep 29 | 85–100 |
| Spinach | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Aug 25 | 35–50 |
| Squash (Summer) | Apr 14 | May 26 | Jun 2 | — | Jul 21 – Sep 22 | 45–65 |
| Squash (Winter) | Apr 14 | May 26 | Jun 2 | — | Aug 25 – Oct 20 | 80–120 |
| Sunchoke | — | — | Jun 2 | — | Sep 22 – Nov 17 | 110–150 |
| Sweet Corn | — | May 26 | — | — | Jul 28 – Sep 8 | 60–90 |
| Sweet Potatoes | Mar 24 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 90–120 |
| Tatsoi | Apr 14 | May 5 | May 19 | Jul 15 | Jun 23 – Jul 28 | 35–50 |
| Tomatillo | Mar 24 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–85 |
| Tomatoes | Mar 24 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–85 |
| Turnip | — | May 5 | — | Jul 15 | Jun 16 – Jul 21 | 40–60 |
| Watercress | Apr 14 | May 5 | May 19 | Jul 15 | Jun 30 – Aug 4 | 40–60 |
| Watermelon | Apr 14 | May 26 | Jun 2 | — | Aug 11 – Sep 29 | 70–100 |
| Wax Beans | — | May 26 | — | — | Jul 21 – Sep 15 | 50–65 |
| Winter Melon | Mar 24 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 90–120 |
| Yard Long Beans | Mar 24 | May 26 | Jun 2 | — | Jul 28 – Sep 8 | 55–80 |
| Zucchini | Apr 14 | May 26 | Jun 2 | — | Jul 21 – Sep 15 | 45–60 |
🍓 Fruits to Grow in Natrona County
27 fruits that grow well in Zone 5a with planting dates for Natrona County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 9 | — | Sep 8 – Nov 24 | 90–180 |
| Aronia | — | — | Jun 9 | — | — | 730–1095 |
| Blackberries | — | — | Jun 9 | — | — | 365–730 |
| Blueberries | — | — | Jun 9 | — | — | 730–1095 |
| Boysenberries | — | — | Jun 9 | — | — | 365–730 |
| Cantaloupe | — | — | Jun 9 | — | Aug 18 – Sep 22 | 70–90 |
| Che Fruit | — | — | Jun 9 | — | — | 1095–1825 |
| Cranberries | — | — | Jun 9 | — | — | 730–1095 |
| Currants | — | — | Jun 9 | — | — | 730–1095 |
| Elderberries | — | — | Jun 9 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 9 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 9 | — | — | 730–1095 |
| Grapes | — | — | Jun 9 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 9 | — | Aug 18 – Oct 13 | 65–80 |
| Hardy Kiwi | — | — | Jun 9 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 9 | — | — | 730–1095 |
| Honeydew | — | — | Jun 9 | — | Sep 1 – Oct 13 | 80–110 |
| Jostaberry | — | — | Jun 9 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 9 | — | — | 730–1095 |
| Medlar | — | — | Jun 9 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 9 | — | — | 730–1825 |
| Pawpaw | — | — | Jun 9 | — | — | 1095–2555 |
| Persimmon | — | — | Jun 9 | — | — | 1095–2555 |
| Quince | — | — | Jun 9 | — | — | 1095–1825 |
| Raspberries | — | — | Jun 9 | — | — | 365–730 |
| Serviceberries | — | — | Jun 9 | — | — | 730–1095 |
| Strawberries | — | — | Jun 9 | — | Sep 8 – Nov 24 | 90–365 |
🌿 Herbs to Grow in Natrona County
34 herbs that grow well in Zone 5a with planting dates for Natrona County.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Apr 14 | May 5 | May 12 | Jul 15 | — | 365–730 |
| Anise | Apr 14 | May 5 | May 12 | Jul 15 | Aug 11 – Oct 27 | 90–120 |
| Basil | Mar 31 | May 26 | Jun 2 | — | Jul 28 – Sep 29 | 50–75 |
| Bee Balm | — | — | May 26 | — | Aug 25 – Nov 10 | 90–120 |
| Borage | Apr 14 | May 5 | May 12 | Jul 15 | Jul 7 – Aug 25 | 50–60 |
| Caraway | Apr 14 | May 5 | May 12 | Jul 15 | — | 365–450 |
| Catnip | — | — | May 26 | — | Jul 28 – Sep 29 | 60–80 |
| Chamomile | Apr 14 | May 5 | May 12 | Jul 15 | Jul 14 – Sep 22 | 60–90 |
| Chervil | Apr 14 | May 5 | May 12 | Jul 15 | Jun 23 – Aug 25 | 40–60 |
| Chives | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Cilantro | Apr 14 | May 5 | May 12 | Jul 15 | Jun 23 – Aug 25 | 40–60 |
| Comfrey | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Cumin | Apr 14 | May 5 | May 12 | Jul 15 | Aug 25 – Oct 27 | 100–120 |
| Dill | Apr 14 | May 5 | May 12 | Jul 15 | Jun 23 – Aug 25 | 40–60 |
| Epazote | Mar 31 | May 26 | Jun 2 | — | Jul 21 – Sep 15 | 45–60 |
| Fennel (herb) | Apr 14 | May 5 | May 12 | Jul 15 | Jul 14 – Sep 22 | 60–90 |
| Feverfew | — | — | May 26 | — | Aug 25 – Nov 10 | 90–120 |
| Garlic Chives | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Horehound | — | — | May 26 | — | Aug 11 – Oct 6 | 75–90 |
| Hyssop | — | — | May 26 | — | Aug 4 – Oct 6 | 70–90 |
| Lemon Balm | — | — | May 26 | — | Jul 28 – Sep 15 | 60–70 |
| Lemon Thyme | — | — | May 26 | — | Aug 4 – Oct 6 | 70–90 |
| Lovage | — | — | May 26 | — | Aug 4 – Oct 6 | 70–90 |
| Mint | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Oregano | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Parsley | Apr 14 | May 5 | May 12 | Jul 15 | Jul 14 – Sep 15 | 60–80 |
| Rue | — | — | May 26 | — | Aug 4 – Oct 6 | 70–90 |
| Sage | — | — | May 26 | — | Aug 11 – Oct 6 | 75–90 |
| Savory | — | — | May 26 | — | Jul 21 – Sep 15 | 50–70 |
| Sorrel | Apr 14 | May 5 | May 12 | Jul 15 | Jun 23 – Aug 25 | 40–60 |
| Tarragon | — | — | May 26 | — | Jul 28 – Oct 6 | 60–90 |
| Thai Basil | Mar 31 | May 26 | Jun 2 | — | Jul 28 – Sep 29 | 50–75 |
| Thyme | — | — | May 26 | — | Aug 4 – Oct 6 | 70–90 |
| Valerian | — | — | May 26 | — | Sep 29 – Nov 10 | 120–180 |
🌸 Flowers to Grow in Natrona County
51 flowers that grow well in Zone 5a with planting dates for Natrona County.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 31 | May 26 | May 26 | — | Jul 21 – Oct 13 | 60–75 |
| Alliums | — | — | — | Aug 12 | Sep 16 – Oct 14 | 28–42 |
| Anemones | Apr 21 | — | May 19 | — | Jun 30 – Jul 28 | 90–120 |
| Astilbe | Mar 17 | — | Jun 2 | — | Aug 18 – Oct 20 | 70–100 |
| Bachelor's Button | Apr 7 | Apr 28 | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Begonias | Mar 10 | — | May 26 | — | Aug 4 – Oct 27 | 70–90 |
| Black-eyed Susan | Mar 17 | May 19 | Jun 2 | — | Aug 18 – Nov 17 | 60–80 |
| Bleeding Hearts | Mar 17 | — | Jun 2 | — | Jul 28 – Sep 8 | 60–90 |
| Calendula | Apr 7 | Apr 28 | May 19 | — | Jul 7 – Sep 29 | 50–70 |
| Celosia | Apr 14 | Jun 2 | Jun 2 | — | Aug 4 – Nov 3 | 60–90 |
| Columbine | Mar 17 | Jun 2 | Jun 2 | — | Jul 28 – Sep 8 | 70–100 |
| Coreopsis | Mar 17 | May 26 | Jun 2 | — | Aug 11 – Nov 17 | 60–80 |
| Cosmos | Apr 21 | May 26 | May 26 | — | Aug 4 – Oct 27 | 60–90 |
| Crocus | — | — | — | Aug 12 | Jun 24 – Jul 15 | 10–20 |
| Daffodils | — | — | — | Aug 12 | Jul 1 – Jul 22 | 20–40 |
| Dahlias | Apr 21 | May 26 | May 26 | — | Aug 18 – Nov 10 | 70–120 |
| Daylily | Mar 17 | — | Jun 2 | — | Aug 25 – Nov 17 | 60–90 |
| Dianthus | Mar 17 | Apr 21 | May 5 | — | Jun 23 – Sep 8 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 17 | Jun 2 | Jun 2 | — | Aug 25 – Nov 17 | 70–90 |
| Foxglove | Mar 17 | Jun 2 | Jun 2 | — | Jul 28 – Sep 8 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 24 | Jun 2 | Jun 2 | — | Aug 11 – Dec 1 | 70–100 |
| Geraniums | Mar 10 | — | May 26 | — | Aug 4 – Oct 27 | 70–100 |
| Gladiolus | — | May 26 | May 26 | — | Aug 18 – Nov 10 | 70–100 |
| Hostas | Mar 10 | — | Jun 2 | — | Aug 25 – Nov 17 | 60–90 |
| Hyacinths | — | — | — | Aug 12 | Jul 22 – Aug 19 | 14–28 |
| Hydrangeas | Mar 10 | — | Jun 2 | — | Aug 18 – Nov 3 | 90–150 |
| Impatiens | Mar 24 | — | May 26 | — | Aug 4 – Oct 27 | 60–75 |
| Irises | — | Division | Jun 2 | — | Jul 28 – Sep 1 | 60–100 |
| Larkspur | — | Apr 21 | — | — | Jun 30 – Aug 25 | 60–90 |
| Lavender | Mar 10 | — | Jun 9 | — | Aug 18 – Sep 29 | 90–120 |
| Lilies | — | Division | Jun 2 | — | Aug 11 – Nov 3 | 70–120 |
| Lobelia | Mar 10 | — | May 12 | — | Jul 7 – Sep 15 | 70–80 |
| Lupine | Mar 17 | Jun 2 | Jun 2 | — | Jul 28 – Sep 8 | 75–100 |
| Marigolds | Apr 7 | May 26 | May 26 | — | Jul 21 – Oct 13 | 50–70 |
| Nasturtium | Apr 21 | May 26 | May 26 | — | Jul 21 – Oct 27 | 55–65 |
| Pansy | Mar 10 | — | May 19 | — | Jul 14 – Sep 8 | 70–90 |
| Peonies | — | Division | Jun 2 | — | Aug 11 – Sep 22 | 90–120 |
| Petunia | Mar 24 | — | May 26 | — | Aug 4 – Oct 27 | 70–90 |
| Phlox | Mar 17 | Jun 2 | Jun 2 | — | Aug 18 – Nov 3 | 80–110 |
| Portulaca | Apr 14 | Jun 2 | Jun 2 | — | Jul 21 – Oct 20 | 50–70 |
| Roses | Mar 10 | — | Jun 2 | — | Aug 18 – Nov 17 | 90–180 |
| Salvia | Mar 17 | — | May 26 | — | Aug 4 – Oct 27 | 70–90 |
| Sedum (Stonecrop) | Mar 17 | — | Jun 2 | — | Sep 29 – Dec 1 | 60–90 |
| Snapdragon | Mar 10 | May 5 | May 19 | — | Jul 28 – Sep 29 | 70–100 |
| Sunflower | Apr 28 | May 26 | May 26 | — | Aug 18 – Oct 27 | 70–100 |
| Sweet Alyssum | Mar 31 | May 5 | May 19 | — | Jun 30 – Sep 8 | 45–60 |
| Sweet Pea | Apr 7 | Apr 14 | May 19 | — | Aug 4 – Oct 6 | 65–85 |
| Tulips | — | — | — | Aug 12 | Jul 15 – Aug 5 | 15–30 |
| Vinca (Annual) | Mar 3 | — | Jun 2 | — | Aug 11 – Oct 27 | 70–90 |
| Yarrow | Mar 17 | May 19 | Jun 2 | — | Aug 11 – Nov 17 | 60–90 |
| Zinnia | Apr 21 | May 26 | May 26 | — | Aug 4 – Oct 27 | 60–70 |
Monthly Planting Guide for Natrona County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Natrona County.
Frequently Asked Questions
What planting zone is Natrona County, WY?
Natrona 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 Natrona County, WY?
Based on 30 years of NOAA weather station data, the median last spring frost in Natrona County falls around May 19. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Natrona County, WY?
The median first fall frost in Natrona County arrives around September 23. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Your Natrona County Garden Planner — Free
A 22-page printable planner built for Natrona 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
$27
$293 value
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
$27
$157 value
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
$27
$210 value
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