Osceola County, MI — Planting Guide
Osceola County is in USDA Zone 5a. The average last spring frost is May 10 and the first fall frost is October 10, giving you a growing season of approximately 153 days.
At an elevation of 762 ft, Osceola County receives approximately 30.9 in of rainfall annually. Summer highs average 83°F with winter lows around 13°F. The predominant soil type is Silt Loam.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
May 10
🍂 First Frost
October 10
📅 Growing Season
153 days
⛰️ Elevation
762 ft
🌧️ Annual Rainfall
30.9 in
Osceola County, MI
Moderate season
153 days
Last Spring Frost
May 10
➔
153 growing days
➔
First Fall Frost
October 10
Osceola County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Zone 5a
Frost Countdown
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Last Frost: May 10
First Frost: Oct 10
Soil & Growing Conditions in Osceola County
Soil Type
Silt Loam
Ideal for most crops — holds moisture and nutrients while draining well.
Watering Needs
Moderate rainfall (30.9 in.) — plan to water 1–2 times per week during the growing season.
Season Tips
153-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
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 Osceola County
105 vegetables that grow well in Zone 5a with planting dates for Osceola County.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Apr 5 | May 17 | May 24 | — | Aug 16 – Sep 20 | 80–100 |
| Amaranth | Mar 15 | May 17 | May 24 | — | Aug 23 – Oct 11 | 90–120 |
| Arugula | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Aug 16 | 30–50 |
| Asparagus | — | — | May 24 | — | — | 730–1095 |
| Beets | — | Apr 26 | — | Aug 1 | Jun 21 – Jul 19 | 50–70 |
| Belgian Endive | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 30 – Oct 25 | 110–150 |
| Bitter Melon | Mar 15 | May 17 | May 24 | — | Jul 26 – Sep 6 | 60–90 |
| Black Beans | — | May 17 | — | — | Aug 16 – Oct 4 | 90–120 |
| Bok Choy | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 26 | 40–60 |
| Broccoli | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 12 – Aug 23 | 60–90 |
| Broccoli Rabe | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 26 | 40–60 |
| Brussels Sprouts | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 9 – Oct 4 | 90–130 |
| Butternut Squash | Apr 5 | May 17 | May 24 | — | Aug 23 – Sep 27 | 85–110 |
| Cabbage | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 12 – Sep 6 | 60–100 |
| Calabash | Mar 15 | May 17 | May 24 | — | Aug 16 – Oct 11 | 80–120 |
| Carrots | — | Apr 26 | — | Aug 1 | Jun 28 – Aug 2 | 60–80 |
| Cauliflower | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Sep 6 | 55–100 |
| Celeriac | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 23 – Sep 27 | 100–120 |
| Celery | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 2 – Sep 27 | 80–120 |
| Celtuce | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 12 – Aug 23 | 60–90 |
| Chard | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 23 | 50–60 |
| Chickpeas | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 2 – Sep 13 | 80–110 |
| Chicory | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 12 – Aug 23 | 60–85 |
| Chinese Cabbage | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 2 | 50–70 |
| Christmas Lima Beans | Mar 15 | May 17 | May 24 | — | Aug 16 – Sep 20 | 80–100 |
| Collard Greens | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Sep 6 | 55–75 |
| Corn | — | May 17 | — | — | Jul 19 – Sep 13 | 60–100 |
| Cowpeas | — | May 17 | — | — | Jul 19 – Aug 30 | 60–90 |
| Cress | Apr 5 | Apr 26 | May 10 | Aug 1 | May 24 – Jun 14 | 14–21 |
| Crookneck Squash | Apr 5 | May 17 | May 24 | — | Jul 12 – Aug 9 | 45–60 |
| Crosne | — | Apr 26 | — | Aug 1 | Sep 27 – Oct 11 | 150–200 |
| Cucumber | Apr 5 | May 17 | May 24 | — | Jul 19 – Sep 13 | 50–70 |
| Daikon | — | Apr 26 | — | Aug 1 | Jun 21 – Jul 19 | 50–70 |
| Delicata Squash | Apr 5 | May 17 | May 24 | — | Aug 16 – Sep 20 | 80–100 |
| Edamame | — | May 17 | — | — | Aug 2 – Sep 13 | 75–100 |
| Eggplant | Mar 1 | May 17 | May 24 | — | Aug 2 – Oct 4 | 65–85 |
| Endive | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 28 – Aug 2 | 45–65 |
| Escarole | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 2 | 50–70 |
| Fava Beans | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 26 – Sep 6 | 75–100 |
| Fennel | Mar 15 | May 17 | May 24 | — | Jul 26 – Sep 6 | 60–90 |
| Garlic | — | — | — | Aug 29 | Nov 28 – Feb 13 | 90–240 |
| Green Beans | — | May 17 | — | — | Jul 12 – Sep 6 | 50–65 |
| Horseradish | — | — | May 24 | — | Sep 27 – Nov 8 | 120–180 |
| Hot Peppers | Mar 1 | May 17 | May 24 | — | Aug 2 – Nov 8 | 70–120 |
| Hubbard Squash | Apr 5 | May 17 | May 24 | — | Sep 6 – Oct 11 | 100–120 |
| Kabocha | Apr 5 | May 17 | May 24 | — | Aug 23 – Sep 20 | 85–100 |
| Kai Lan | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 28 – Jul 26 | 45–60 |
| Kale | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 30 | 50–70 |
| Kidney Beans | — | May 17 | — | — | Aug 16 – Sep 20 | 85–110 |
| Kohlrabi | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 28 – Aug 2 | 45–65 |
| Komatsuna | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Jul 19 | 35–50 |
| Leeks | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 9 – Oct 25 | 90–150 |
| Lentils | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 2 – Sep 13 | 80–110 |
| Lettuce | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Aug 23 | 30–60 |
| Lima Beans | — | May 17 | — | — | Jul 19 – Aug 30 | 60–90 |
| Mache | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 26 | 40–60 |
| Melon | Apr 5 | May 17 | May 24 | — | Aug 2 – Sep 20 | 70–100 |
| Microgreens | Apr 5 | Apr 26 | May 10 | Aug 1 | May 17 – Jun 14 | 7–21 |
| Mitsuba | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 28 – Aug 23 | 50–70 |
| Mizuna | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Jul 12 | 30–45 |
| Mustard Greens | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Aug 16 | 30–50 |
| Napa Cabbage | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 9 | 55–75 |
| New Zealand Spinach | Mar 15 | May 17 | May 24 | — | Jul 19 – Aug 16 | 55–70 |
| Okra | Mar 15 | May 17 | May 24 | — | Jul 19 – Sep 13 | 50–65 |
| Onion | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 9 – Sep 27 | 90–120 |
| Pac Choi | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 19 | 40–55 |
| Parsnip | — | Apr 26 | — | Aug 1 | Aug 9 – Sep 20 | 100–130 |
| Patty Pan Squash | Apr 5 | May 17 | May 24 | — | Jul 12 – Aug 9 | 45–60 |
| Peas | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 30 | 55–70 |
| Peppers | Mar 1 | May 17 | May 24 | — | Jul 26 – Oct 4 | 60–90 |
| Pole Beans | Mar 15 | May 17 | May 24 | — | Jul 19 – Sep 13 | 55–70 |
| Potatoes | Mar 15 | May 17 | May 24 | — | Aug 2 – Oct 11 | 70–120 |
| Pumpkin | Apr 5 | May 17 | May 24 | — | Aug 23 – Oct 11 | 85–120 |
| Purslane | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 26 | 40–60 |
| Radicchio | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 12 – Aug 16 | 60–80 |
| Radish | — | Apr 26 | — | Aug 1 | May 24 – Jun 14 | 22–35 |
| Rhubarb | — | — | May 31 | — | — | 365–730 |
| Romanesco | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 26 – Sep 6 | 75–100 |
| Rutabaga | — | Apr 26 | — | Aug 1 | Jul 19 – Aug 23 | 80–100 |
| Salsify | — | Apr 26 | — | Aug 1 | Aug 9 – Sep 20 | 100–130 |
| Savoy Cabbage | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 19 – Sep 13 | 70–110 |
| Scallions | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 2 | 50–70 |
| Scarlet Runner Beans | Mar 15 | May 17 | May 24 | — | Jul 26 – Aug 30 | 60–80 |
| Shallot | Apr 5 | Apr 26 | May 10 | Aug 1 | Aug 9 – Sep 27 | 90–120 |
| Shiso | Mar 22 | May 17 | May 24 | — | Jul 19 – Sep 13 | 50–70 |
| Snap Peas | Mar 15 | May 17 | May 24 | — | Jul 19 – Sep 13 | 55–70 |
| Snow Peas | Apr 5 | Apr 26 | May 10 | Aug 1 | Jul 5 – Aug 30 | 50–65 |
| Soybeans | — | May 17 | — | — | Aug 9 – Oct 4 | 80–120 |
| Spaghetti Squash | Apr 5 | May 17 | May 24 | — | Aug 23 – Sep 20 | 85–100 |
| Spinach | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Aug 16 | 35–50 |
| Squash (Summer) | Apr 5 | May 17 | May 24 | — | Jul 12 – Sep 13 | 45–65 |
| Squash (Winter) | Apr 5 | May 17 | May 24 | — | Aug 16 – Oct 11 | 80–120 |
| Sunchoke | — | — | May 24 | — | Sep 13 – Nov 8 | 110–150 |
| Sweet Corn | — | May 17 | — | — | Jul 19 – Aug 30 | 60–90 |
| Sweet Potatoes | Mar 15 | May 17 | May 24 | — | Aug 23 – Oct 11 | 90–120 |
| Tatsoi | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 14 – Jul 19 | 35–50 |
| Tomatillo | Mar 15 | May 17 | May 24 | — | Jul 26 – Oct 4 | 60–85 |
| Tomatoes | Mar 15 | May 17 | May 24 | — | Jul 26 – Oct 4 | 60–85 |
| Turnip | — | Apr 26 | — | Aug 1 | Jun 7 – Jul 12 | 40–60 |
| Watercress | Apr 5 | Apr 26 | May 10 | Aug 1 | Jun 21 – Jul 26 | 40–60 |
| Watermelon | Apr 5 | May 17 | May 24 | — | Aug 2 – Sep 20 | 70–100 |
| Wax Beans | — | May 17 | — | — | Jul 12 – Sep 6 | 50–65 |
| Winter Melon | Mar 15 | May 17 | May 24 | — | Aug 23 – Oct 11 | 90–120 |
| Yard Long Beans | Mar 15 | May 17 | May 24 | — | Jul 19 – Aug 30 | 55–80 |
| Zucchini | Apr 5 | May 17 | May 24 | — | Jul 12 – Sep 6 | 45–60 |
🍓 Fruits to Grow in Osceola County
27 fruits that grow well in Zone 5a with planting dates for Osceola County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 31 | — | Aug 30 – Nov 15 | 90–180 |
| Aronia | — | — | May 31 | — | — | 730–1095 |
| Blackberries | — | — | May 31 | — | — | 365–730 |
| Blueberries | — | — | May 31 | — | — | 730–1095 |
| Boysenberries | — | — | May 31 | — | — | 365–730 |
| Cantaloupe | — | — | May 31 | — | Aug 9 – Sep 13 | 70–90 |
| Che Fruit | — | — | May 31 | — | — | 1095–1825 |
| Cranberries | — | — | May 31 | — | — | 730–1095 |
| Currants | — | — | May 31 | — | — | 730–1095 |
| Elderberries | — | — | May 31 | — | — | 730–1095 |
| Goji Berries | — | — | May 31 | — | — | 730–1095 |
| Gooseberries | — | — | May 31 | — | — | 730–1095 |
| Grapes | — | — | May 31 | — | — | 730–1095 |
| Ground Cherry | — | — | May 31 | — | Aug 9 – Oct 4 | 65–80 |
| Hardy Kiwi | — | — | May 31 | — | — | 1095–1825 |
| Haskaps | — | — | May 31 | — | — | 730–1095 |
| Honeydew | — | — | May 31 | — | Aug 23 – Oct 4 | 80–110 |
| Jostaberry | — | — | May 31 | — | — | 730–1095 |
| Lingonberries | — | — | May 31 | — | — | 730–1095 |
| Medlar | — | — | May 31 | — | — | 1095–1825 |
| Mulberries | — | — | May 31 | — | — | 730–1825 |
| Pawpaw | — | — | May 31 | — | — | 1095–2555 |
| Persimmon | — | — | May 31 | — | — | 1095–2555 |
| Quince | — | — | May 31 | — | — | 1095–1825 |
| Raspberries | — | — | May 31 | — | — | 365–730 |
| Serviceberries | — | — | May 31 | — | — | 730–1095 |
| Strawberries | — | — | May 31 | — | Aug 30 – Nov 15 | 90–365 |
🌿 Herbs to Grow in Osceola County
34 herbs that grow well in Zone 5a with planting dates for Osceola County.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Apr 5 | Apr 26 | May 3 | Aug 1 | — | 365–730 |
| Anise | Apr 5 | Apr 26 | May 3 | Aug 1 | Aug 2 – Oct 18 | 90–120 |
| Basil | Mar 22 | May 17 | May 24 | — | Jul 19 – Sep 20 | 50–75 |
| Bee Balm | — | — | May 17 | — | Aug 16 – Nov 1 | 90–120 |
| Borage | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 28 – Aug 16 | 50–60 |
| Caraway | Apr 5 | Apr 26 | May 3 | Aug 1 | — | 365–450 |
| Catnip | — | — | May 17 | — | Jul 19 – Sep 20 | 60–80 |
| Chamomile | Apr 5 | Apr 26 | May 3 | Aug 1 | Jul 5 – Sep 13 | 60–90 |
| Chervil | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 14 – Aug 16 | 40–60 |
| Chives | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Cilantro | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 14 – Aug 16 | 40–60 |
| Comfrey | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Cumin | Apr 5 | Apr 26 | May 3 | Aug 1 | Aug 16 – Oct 18 | 100–120 |
| Dill | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 14 – Aug 16 | 40–60 |
| Epazote | Mar 22 | May 17 | May 24 | — | Jul 12 – Sep 6 | 45–60 |
| Fennel (herb) | Apr 5 | Apr 26 | May 3 | Aug 1 | Jul 5 – Sep 13 | 60–90 |
| Feverfew | — | — | May 17 | — | Aug 16 – Nov 1 | 90–120 |
| Garlic Chives | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Horehound | — | — | May 17 | — | Aug 2 – Sep 27 | 75–90 |
| Hyssop | — | — | May 17 | — | Jul 26 – Sep 27 | 70–90 |
| Lemon Balm | — | — | May 17 | — | Jul 19 – Sep 6 | 60–70 |
| Lemon Thyme | — | — | May 17 | — | Jul 26 – Sep 27 | 70–90 |
| Lovage | — | — | May 17 | — | Jul 26 – Sep 27 | 70–90 |
| Mint | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Oregano | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Parsley | Apr 5 | Apr 26 | May 3 | Aug 1 | Jul 5 – Sep 6 | 60–80 |
| Rue | — | — | May 17 | — | Jul 26 – Sep 27 | 70–90 |
| Sage | — | — | May 17 | — | Aug 2 – Sep 27 | 75–90 |
| Savory | — | — | May 17 | — | Jul 12 – Sep 6 | 50–70 |
| Sorrel | Apr 5 | Apr 26 | May 3 | Aug 1 | Jun 14 – Aug 16 | 40–60 |
| Tarragon | — | — | May 17 | — | Jul 19 – Sep 27 | 60–90 |
| Thai Basil | Mar 22 | May 17 | May 24 | — | Jul 19 – Sep 20 | 50–75 |
| Thyme | — | — | May 17 | — | Jul 26 – Sep 27 | 70–90 |
| Valerian | — | — | May 17 | — | Sep 20 – Nov 1 | 120–180 |
🌸 Flowers to Grow in Osceola County
51 flowers that grow well in Zone 5a with planting dates for Osceola County.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 22 | May 17 | May 17 | — | Jul 12 – Oct 4 | 60–75 |
| Alliums | — | — | — | Aug 29 | Oct 3 – Oct 31 | 28–42 |
| Anemones | Apr 12 | — | May 10 | — | Jun 21 – Jul 19 | 90–120 |
| Astilbe | Mar 8 | — | May 24 | — | Aug 9 – Oct 11 | 70–100 |
| Bachelor's Button | Mar 29 | Apr 19 | May 10 | — | Jul 12 – Sep 20 | 60–90 |
| Begonias | Mar 1 | — | May 17 | — | Jul 26 – Oct 18 | 70–90 |
| Black-eyed Susan | Mar 8 | May 10 | May 24 | — | Aug 9 – Nov 8 | 60–80 |
| Bleeding Hearts | Mar 8 | — | May 24 | — | Jul 19 – Aug 30 | 60–90 |
| Calendula | Mar 29 | Apr 19 | May 10 | — | Jun 28 – Sep 20 | 50–70 |
| Celosia | Apr 5 | May 24 | May 24 | — | Jul 26 – Oct 25 | 60–90 |
| Columbine | Mar 8 | May 24 | May 24 | — | Jul 19 – Aug 30 | 70–100 |
| Coreopsis | Mar 8 | May 17 | May 24 | — | Aug 2 – Nov 8 | 60–80 |
| Cosmos | Apr 12 | May 17 | May 17 | — | Jul 26 – Oct 18 | 60–90 |
| Crocus | — | — | — | Aug 29 | Jul 11 – Aug 1 | 10–20 |
| Daffodils | — | — | — | Aug 29 | Jul 18 – Aug 8 | 20–40 |
| Dahlias | Apr 12 | May 17 | May 17 | — | Aug 9 – Nov 1 | 70–120 |
| Daylily | Mar 8 | — | May 24 | — | Aug 16 – Nov 8 | 60–90 |
| Dianthus | Mar 8 | Apr 12 | Apr 26 | — | Jun 14 – Aug 30 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 8 | May 24 | May 24 | — | Aug 16 – Nov 8 | 70–90 |
| Foxglove | Mar 8 | May 24 | May 24 | — | Jul 19 – Aug 30 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 15 | May 24 | May 24 | — | Aug 2 – Nov 22 | 70–100 |
| Geraniums | Mar 1 | — | May 17 | — | Jul 26 – Oct 18 | 70–100 |
| Gladiolus | — | May 17 | May 17 | — | Aug 9 – Nov 1 | 70–100 |
| Hostas | Mar 1 | — | May 24 | — | Aug 16 – Nov 8 | 60–90 |
| Hyacinths | — | — | — | Aug 29 | Aug 8 – Sep 5 | 14–28 |
| Hydrangeas | Mar 1 | — | May 24 | — | Aug 9 – Oct 25 | 90–150 |
| Impatiens | Mar 15 | — | May 17 | — | Jul 26 – Oct 18 | 60–75 |
| Irises | — | Division | May 24 | — | Jul 19 – Aug 23 | 60–100 |
| Larkspur | — | Apr 12 | — | — | Jun 21 – Aug 16 | 60–90 |
| Lavender | Mar 1 | — | May 31 | — | Aug 9 – Sep 20 | 90–120 |
| Lilies | — | Division | May 24 | — | Aug 2 – Oct 25 | 70–120 |
| Lobelia | Mar 1 | — | May 3 | — | Jun 28 – Sep 6 | 70–80 |
| Lupine | Mar 8 | May 24 | May 24 | — | Jul 19 – Aug 30 | 75–100 |
| Marigolds | Mar 29 | May 17 | May 17 | — | Jul 12 – Oct 4 | 50–70 |
| Nasturtium | Apr 12 | May 17 | May 17 | — | Jul 12 – Oct 18 | 55–65 |
| Pansy | Mar 1 | — | May 10 | — | Jul 5 – Aug 30 | 70–90 |
| Peonies | — | Division | May 24 | — | Aug 2 – Sep 13 | 90–120 |
| Petunia | Mar 15 | — | May 17 | — | Jul 26 – Oct 18 | 70–90 |
| Phlox | Mar 8 | May 24 | May 24 | — | Aug 9 – Oct 25 | 80–110 |
| Portulaca | Apr 5 | May 24 | May 24 | — | Jul 12 – Oct 11 | 50–70 |
| Roses | Mar 1 | — | May 24 | — | Aug 9 – Nov 8 | 90–180 |
| Salvia | Mar 8 | — | May 17 | — | Jul 26 – Oct 18 | 70–90 |
| Sedum (Stonecrop) | Mar 8 | — | May 24 | — | Sep 20 – Nov 22 | 60–90 |
| Snapdragon | Mar 1 | Apr 26 | May 10 | — | Jul 19 – Sep 20 | 70–100 |
| Sunflower | Apr 19 | May 17 | May 17 | — | Aug 9 – Oct 18 | 70–100 |
| Sweet Alyssum | Mar 22 | Apr 26 | May 10 | — | Jun 21 – Aug 30 | 45–60 |
| Sweet Pea | Mar 29 | Apr 5 | May 10 | — | Jul 26 – Sep 27 | 65–85 |
| Tulips | — | — | — | Aug 29 | Aug 1 – Aug 22 | 15–30 |
| Vinca (Annual) | Feb 22 | — | May 24 | — | Aug 2 – Oct 18 | 70–90 |
| Yarrow | Mar 8 | May 10 | May 24 | — | Aug 2 – Nov 8 | 60–90 |
| Zinnia | Apr 12 | May 17 | May 17 | — | Jul 26 – Oct 18 | 60–70 |
Monthly Planting Guide for Osceola County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Osceola County.
Frequently Asked Questions
What planting zone is Osceola County, MI?
Osceola 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 Osceola County, MI?
Based on 30 years of NOAA weather station data, the median last spring frost in Osceola County falls around May 10. Plan transplants and direct-sow dates relative to this date.
When is the first fall frost in Osceola County, MI?
The median first fall frost in Osceola County arrives around October 10. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
Your Osceola County Garden Planner — Free
A 22-page printable planner built for Osceola 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