Dickinson County, MI — Planting Guide
Dickinson County is in USDA Zone 4b. The average last spring frost is May 12 and the first fall frost is October 9, giving you a growing season of approximately 150 days.
At an elevation of 892 ft, Dickinson County receives approximately 32.2 in of rainfall annually. Summer highs average 82°F with winter lows around 4°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 33 days year to year — ranging from April 24 in warm years to May 28 in cold years. The growing season is trending longer by about 0.83 days per decade. Dickinson County scores 72/100 (Good) on the Microclimate Index.
🌡️ Zone
4b (-25°F to -20°F min)
❄️ Last Frost
May 12
🍂 First Frost
October 9
📅 Growing Season
150 days
⛰️ Elevation
892 ft
🌧️ Annual Rainfall
32.2 in
Monthly Watering Calendar for Dickinson County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why this matters: Mulch reduces watering needs 30-50% by cutting evaporation. Dickinson County's 32" 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 | 1.3 in | 9 days | — | None |
| Feb | 1.4 in | 6 days | — | None |
| Mar | 2.3 in | 8 days | — | None |
| Apr | 3.3 in | 9 days | 1 in | Moderate |
| May | 3.8 in | 9 days | 0.5 in | Low |
| Jun | 3.7 in | 8 days | 0.6 in | Moderate |
| Jul | 3.8 in | 8 days | 0.5 in | Low |
| Aug | 3.1 in | 7 days | 1.2 in | Moderate |
| Sep | 2.9 in | 9 days | 1.4 in | Moderate |
| Oct | 2.3 in | 7 days | 2 in | High |
| Nov | 2.1 in | 8 days | — | None |
| Dec | 2.1 in | 8 days | — | None |
Annual total: 32.1 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.
Dickinson County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7.3
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) | May 28 | Nov 6 | 162 days |
| Cautious | May 20 | Oct 21 | 154 days |
| Average year | May 12 | Oct 9 | 150 days |
| Optimistic | May 4 | Sep 30 | 149 days |
| Aggressive (risky) | Apr 24 | Sep 19 | 148 days |
Not very — frost dates can vary by ±33 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit longer (0.8 days/decade). Historical frost dates are still reliable for planning.
Gardening Difficulty Score
Dickinson County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Dickinson 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 Dickinson County's climate and soil.
County Extension Office
Dickinson County Michigan State University Extension Extension Office
Phone: 517-355-0240
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 Dickinson County
Finding local nurseries & garden centers in Dickinson County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Dickinson 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 Dickinson County MI" or "garden center Dickinson 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 Dickinson County MI" or check your extension office and local parks department. Facebook groups like "Dickinson County Gardeners" or "Michigan 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.
Show 6 more succession options
Sunlight & Day Length in Dickinson County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
What this means for you: You can't change the sun. Picking the right day-length-matched varieties for Dickinson 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
15.5 hours
Summer solstice daylight
Shortest Day
8.5 hours
Winter solstice daylight
Peak Sun Hours
10 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 | 8.8 hr | 3.5 hr | Short day |
| February | 10.1 hr | 4.7 hr | Short day |
| March | 11.6 hr | 5.5 hr | Short day |
| April | 13.3 hr | 6.7 hr | Neutral |
| May | 14.8 hr | 8.6 hr | Long day |
| June | 15.5 hr | 9.4 hr | Long day |
| July | 15.2 hr | 10 hr | Long day |
| August | 14 hr | 8.5 hr | Long day |
| September | 12.3 hr | 7.2 hr | Neutral |
| October | 10.7 hr | 5.3 hr | Short day |
| November | 9.2 hr | 3.6 hr | Short day |
| December | 8.5 hr | 3.1 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Dickinson 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: Cold soil = stunted starts. A bean seed planted in 55°F soil rots before it germinates. Same seed in 65°F soil sprouts in 5 days. Dickinson County's soil temperature pattern shows you the difference month to month.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 14°F | 25°F | ❄️ Dormant | ~36 weeks |
| Feb | 16°F | 22°F | ❄️ Dormant | ~36 weeks |
| Mar | 26°F | 28°F | ❄️ Dormant | ~36 weeks |
| Apr | 42°F | 39°F | 🐢 Slow | ~24 weeks |
| May | 54°F | 49°F | ♻️ Active | ~14 weeks |
| Jun | 64°F | 58°F | ♻️ Active | ~14 weeks |
| Jul | 73°F | 65°F | 🔥 Peak | ~8 weeks |
| Aug | 72°F | 67°F | 🔥 Peak | ~8 weeks |
| Sep | 66°F | 66°F | 🔥 Peak | ~8 weeks |
| Oct | 51°F | 54°F | ♻️ Active | ~14 weeks |
| Nov | 36°F | 44°F | ❄️ Dormant | ~36 weeks |
| Dec | 24°F | 32°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 Dickinson County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Quick context: Pest and disease pressure is the X-factor most beginners under-plan for. Dickinson County's climate determines whether you can mostly "plant and see" or whether you need a pest-management routine from the first seedling.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Low | May, Jun, Jul |
| Slugs | Moderate | May, Jun, Jul, Aug, Sep |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Dickinson County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Quick context: The "chop and drop" approach to cover crops: cut them down right before flowering, let them lay on the surface as mulch, plant your vegetables through the mulch. Less work, healthier soil.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 18 | Jul 31 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 16 | Aug 14 | ✓ 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 | May 24 | Sep 25 | — | 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 | Aug 12 | Apr 28 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 28 | Apr 21 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 14 | Apr 21 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 10 | Apr 21 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 16 | Apr 21 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Dickinson County
Why it matters: New gardeners under-plan for wind. Dickinson County averages 10.0 mph — fine for most days. But every region has its windy days, and the first time a row of unstaked peppers leans over after a storm is a lesson you only need once.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 12 mph Summer: 10 mph
Fall: 10 mph Winter: 11 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (148 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Dickinson County
How much water you can collect, when to collect it, and what size system you need for your garden.
What this means for you: The first inch of rain washes the roof clean — a first-flush diverter sends it to waste before the barrel fills. Worth the extra $20 for cleaner garden water. Dickinson County gets 32" annually, so you'll fill and flush many times per year.
Annual Collection
15,998 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 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
Apr, May, Jun, Jul
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, 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 32.1 inches of rain per year
- A 1,000 sq ft roof can collect roughly 15,998 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Dickinson County
Soil Type
Silt Loam
Soil pH 6–7.3 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (32.2 in. annual rainfall)
Season Tips
150-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
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 Dickinson County
95 vegetables that grow well in Zone 4b with planting dates for Dickinson County.
Show all 95 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 31 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Amaranth | Mar 10 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 90–120 |
| Arugula | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Aug 18 | 30–50 |
| Asparagus | — | — | May 26 | — | — | 730–1095 |
| Beets | — | May 5 | — | Jul 17 | Jun 30 – Jul 28 | 50–70 |
| Belgian Endive | Mar 31 | May 5 | May 12 | Jul 17 | Sep 1 – Oct 6 | 110–150 |
| Black Beans | — | May 26 | — | — | Aug 25 – Oct 13 | 90–120 |
| Bok Choy | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 28 | 40–60 |
| Broccoli | Mar 31 | May 5 | May 12 | Jul 17 | Jul 14 – Aug 25 | 60–90 |
| Broccoli Rabe | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 28 | 40–60 |
| Brussels Sprouts | Mar 31 | May 5 | May 12 | Jul 17 | Aug 11 – Oct 6 | 90–130 |
| Butternut Squash | Mar 31 | May 26 | Jun 2 | — | Sep 1 – Oct 6 | 85–110 |
| Cabbage | Mar 31 | May 5 | May 12 | Jul 17 | Jul 14 – Sep 8 | 60–100 |
| Carrots | — | May 5 | — | Jul 17 | Jul 7 – Aug 11 | 60–80 |
| Cauliflower | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Sep 8 | 55–100 |
| Celeriac | Mar 31 | May 5 | May 12 | Jul 17 | Aug 25 – Sep 29 | 100–120 |
| Celery | Mar 31 | May 5 | May 12 | Jul 17 | Aug 4 – Sep 29 | 80–120 |
| Celtuce | Mar 31 | May 5 | May 12 | Jul 17 | Jul 14 – Aug 25 | 60–90 |
| Chard | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Aug 25 | 50–60 |
| Chickpeas | Mar 31 | May 5 | May 12 | Jul 17 | Aug 4 – Sep 15 | 80–110 |
| Chicory | Mar 31 | May 5 | May 12 | Jul 17 | Jul 14 – Aug 25 | 60–85 |
| Chinese Cabbage | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Aug 4 | 50–70 |
| Christmas Lima Beans | Mar 10 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Collard Greens | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Sep 8 | 55–75 |
| Corn | — | May 26 | — | — | Jul 28 – Sep 22 | 60–100 |
| Cress | Mar 31 | May 5 | May 12 | Jul 17 | May 26 – Jun 16 | 14–21 |
| Crookneck Squash | Mar 31 | May 26 | Jun 2 | — | Jul 21 – Aug 18 | 45–60 |
| Crosne | — | May 5 | — | Jul 17 | Oct 6 – Sep 29 | 150–200 |
| Cucumber | Mar 31 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 50–70 |
| Daikon | — | May 5 | — | Jul 17 | Jun 30 – Jul 28 | 50–70 |
| Delicata Squash | Mar 31 | May 26 | Jun 2 | — | Aug 25 – Sep 29 | 80–100 |
| Edamame | — | May 26 | — | — | Aug 11 – Sep 22 | 75–100 |
| Endive | Mar 31 | May 5 | May 12 | Jul 17 | Jun 30 – Aug 4 | 45–65 |
| Escarole | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Aug 4 | 50–70 |
| Fava Beans | Mar 31 | May 5 | May 12 | Jul 17 | Jul 28 – Sep 8 | 75–100 |
| Fennel | Mar 10 | May 26 | Jun 2 | — | Aug 4 – Sep 15 | 60–90 |
| Garlic | — | — | — | Aug 28 | Nov 27 – Jan 22 | 90–240 |
| Green Beans | — | May 26 | — | — | Jul 21 – Sep 15 | 50–65 |
| Horseradish | — | — | May 26 | — | Sep 29 – Oct 20 | 120–180 |
| Hubbard Squash | Mar 31 | May 26 | Jun 2 | — | Sep 15 – Oct 20 | 100–120 |
| Kabocha | Mar 31 | May 26 | Jun 2 | — | Sep 1 – Sep 29 | 85–100 |
| Kai Lan | Mar 31 | May 5 | May 12 | Jul 17 | Jun 30 – Jul 28 | 45–60 |
| Kale | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Sep 1 | 50–70 |
| Kidney Beans | — | May 26 | — | — | Aug 25 – Sep 29 | 85–110 |
| Kohlrabi | Mar 31 | May 5 | May 12 | Jul 17 | Jun 30 – Aug 4 | 45–65 |
| Komatsuna | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Jul 21 | 35–50 |
| Leeks | Mar 31 | May 5 | May 12 | Jul 17 | Aug 11 – Oct 6 | 90–150 |
| Lentils | Mar 31 | May 5 | May 12 | Jul 17 | Aug 4 – Sep 15 | 80–110 |
| Lettuce | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Aug 25 | 30–60 |
| Lima Beans | — | May 26 | — | — | Jul 28 – Sep 8 | 60–90 |
| Mache | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 28 | 40–60 |
| Melon | Mar 31 | May 26 | Jun 2 | — | Aug 11 – Sep 29 | 70–100 |
| Microgreens | Mar 31 | May 5 | May 12 | Jul 17 | May 19 – Jun 16 | 7–21 |
| Mitsuba | Mar 31 | May 5 | May 5 | Jul 17 | Jun 30 – Aug 25 | 50–70 |
| Mizuna | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Jul 14 | 30–45 |
| Mustard Greens | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Aug 18 | 30–50 |
| Napa Cabbage | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Aug 11 | 55–75 |
| Onion | Mar 31 | May 5 | May 12 | Jul 17 | Aug 11 – Sep 29 | 90–120 |
| Pac Choi | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 21 | 40–55 |
| Parsnip | — | May 5 | — | Jul 17 | Aug 18 – Sep 29 | 100–130 |
| Patty Pan Squash | Mar 31 | May 26 | Jun 2 | — | Jul 21 – Aug 18 | 45–60 |
| Peas | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Sep 1 | 55–70 |
| Peppers | Feb 24 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–90 |
| Pole Beans | Mar 10 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 55–70 |
| Potatoes | Mar 10 | May 26 | Jun 2 | — | Aug 11 – Oct 20 | 70–120 |
| Pumpkin | Mar 31 | May 26 | Jun 2 | — | Sep 1 – Oct 20 | 85–120 |
| Purslane | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 28 | 40–60 |
| Radicchio | Mar 31 | May 5 | May 12 | Jul 17 | Jul 14 – Aug 18 | 60–80 |
| Radish | — | May 5 | — | Jul 17 | Jun 2 – Jun 23 | 22–35 |
| Rhubarb | — | — | Jun 9 | — | — | 365–730 |
| Romanesco | Mar 31 | May 5 | May 12 | Jul 17 | Jul 28 – Sep 8 | 75–100 |
| Rutabaga | — | May 5 | — | Jul 17 | Jul 28 – Sep 1 | 80–100 |
| Salsify | — | May 5 | — | Jul 17 | Aug 18 – Sep 29 | 100–130 |
| Savoy Cabbage | Mar 31 | May 5 | May 12 | Jul 17 | Jul 21 – Sep 15 | 70–110 |
| Scallions | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Aug 4 | 50–70 |
| Scarlet Runner Beans | Mar 10 | May 26 | Jun 2 | — | Aug 4 – Sep 8 | 60–80 |
| Shallot | Mar 31 | May 5 | May 12 | Jul 17 | Aug 11 – Sep 29 | 90–120 |
| Shiso | Mar 17 | May 19 | Jun 2 | — | Jul 28 – Sep 22 | 50–70 |
| Snap Peas | Mar 10 | May 26 | Jun 2 | — | Jul 28 – Sep 22 | 55–70 |
| Snow Peas | Mar 31 | May 5 | May 12 | Jul 17 | Jul 7 – Sep 1 | 50–65 |
| Soybeans | — | May 26 | — | — | Aug 18 – Oct 13 | 80–120 |
| Spaghetti Squash | Mar 31 | May 26 | Jun 2 | — | Sep 1 – Sep 29 | 85–100 |
| Spinach | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Aug 18 | 35–50 |
| Squash (Summer) | Mar 31 | May 26 | Jun 2 | — | Jul 21 – Sep 22 | 45–65 |
| Squash (Winter) | Mar 31 | May 26 | Jun 2 | — | Aug 25 – Oct 20 | 80–120 |
| Sunchoke | — | — | May 26 | — | Sep 15 – Oct 20 | 110–150 |
| Sweet Corn | — | May 26 | — | — | Jul 28 – Sep 8 | 60–90 |
| Tatsoi | Mar 31 | May 5 | May 12 | Jul 17 | Jun 16 – Jul 21 | 35–50 |
| Tomatillo | Mar 10 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–85 |
| Tomatoes | Mar 10 | May 26 | Jun 2 | — | Aug 4 – Oct 13 | 60–85 |
| Turnip | — | May 5 | — | Jul 17 | Jun 16 – Jul 21 | 40–60 |
| Watercress | Mar 31 | May 5 | May 12 | Jul 17 | Jun 23 – Jul 28 | 40–60 |
| Watermelon | Mar 31 | May 26 | Jun 2 | — | Aug 11 – Sep 29 | 70–100 |
| Wax Beans | — | May 26 | — | — | Jul 21 – Sep 15 | 50–65 |
| Zucchini | Mar 31 | May 26 | Jun 2 | — | Jul 21 – Sep 15 | 45–60 |
🍓 Fruits to Grow in Dickinson County
22 fruits that grow well in Zone 4b with planting dates for Dickinson County.
Show all 22 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 9 | — | Sep 8 – Nov 3 | 90–180 |
| Aronia | — | — | Jun 9 | — | — | 730–1095 |
| Blueberries | — | — | Jun 9 | — | — | 730–1095 |
| Cantaloupe | — | — | Jun 9 | — | Aug 18 – Sep 22 | 70–90 |
| 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 |
| Persimmon | — | — | Jun 9 | — | — | 1095–2555 |
| Raspberries | — | — | Jun 9 | — | — | 365–730 |
| Serviceberries | — | — | Jun 9 | — | — | 730–1095 |
| Strawberries | — | — | Jun 9 | — | Sep 8 – Nov 3 | 90–365 |
🌿 Herbs to Grow in Dickinson County
30 herbs that grow well in Zone 4b with planting dates for Dickinson County.
Show all 30 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 31 | May 5 | May 5 | Jul 17 | — | 365–730 |
| Anise | Mar 31 | May 5 | May 5 | Jul 17 | Aug 4 – Sep 29 | 90–120 |
| Basil | Mar 17 | May 19 | Jun 2 | — | Jul 28 – Sep 29 | 50–75 |
| Bee Balm | — | — | May 19 | — | Aug 18 – Oct 13 | 90–120 |
| Borage | Mar 31 | May 5 | May 5 | Jul 17 | Jun 30 – Aug 18 | 50–60 |
| Caraway | Mar 31 | May 5 | May 5 | Jul 17 | — | 365–450 |
| Catnip | — | — | May 19 | — | Jul 21 – Sep 22 | 60–80 |
| Chamomile | Mar 31 | May 5 | May 5 | Jul 17 | Jul 7 – Sep 15 | 60–90 |
| Chervil | Mar 31 | May 5 | May 5 | Jul 17 | Jun 16 – Aug 18 | 40–60 |
| Chives | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Cilantro | Mar 31 | May 5 | May 5 | Jul 17 | Jun 16 – Aug 18 | 40–60 |
| Comfrey | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Dill | Mar 31 | May 5 | May 5 | Jul 17 | Jun 16 – Aug 18 | 40–60 |
| Fennel (herb) | Mar 31 | May 5 | May 5 | Jul 17 | Jul 7 – Sep 15 | 60–90 |
| Garlic Chives | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Horehound | — | — | May 19 | — | Aug 4 – Sep 29 | 75–90 |
| Hyssop | — | — | May 19 | — | Jul 28 – Sep 29 | 70–90 |
| Lemon Balm | — | — | May 19 | — | Jul 21 – Sep 8 | 60–70 |
| Lovage | — | — | May 19 | — | Jul 28 – Sep 29 | 70–90 |
| Mint | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Oregano | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Parsley | Mar 31 | May 5 | May 5 | Jul 17 | Jul 7 – Sep 8 | 60–80 |
| Rue | — | — | May 19 | — | Jul 28 – Sep 29 | 70–90 |
| Sage | — | — | May 19 | — | Aug 4 – Sep 29 | 75–90 |
| Savory | — | — | May 19 | — | Jul 14 – Sep 8 | 50–70 |
| Sorrel | Mar 31 | May 5 | May 5 | Jul 17 | Jun 16 – Aug 18 | 40–60 |
| Tarragon | — | — | May 19 | — | Jul 21 – Sep 29 | 60–90 |
| Thai Basil | Mar 17 | May 19 | Jun 2 | — | Jul 28 – Sep 29 | 50–75 |
| Thyme | — | — | May 19 | — | Jul 28 – Sep 29 | 70–90 |
| Valerian | — | — | May 19 | — | Sep 22 – Oct 13 | 120–180 |
🌸 Flowers to Grow in Dickinson County
49 flowers that grow well in Zone 4b with planting dates for Dickinson County.
Show all 49 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 24 | May 19 | May 19 | — | Jul 14 – Sep 29 | 60–75 |
| Alliums | — | — | — | Aug 28 | Oct 2 – Oct 30 | 28–42 |
| Astilbe | Mar 3 | — | May 26 | — | Aug 18 – Oct 13 | 70–100 |
| Bachelor's Button | Mar 24 | Apr 28 | May 12 | — | Jul 14 – Sep 15 | 60–90 |
| Begonias | Feb 24 | — | May 19 | — | Jul 28 – Oct 6 | 70–90 |
| Black-eyed Susan | Mar 3 | May 12 | May 26 | — | Aug 18 – Nov 3 | 60–80 |
| Bleeding Hearts | Mar 3 | — | May 26 | — | Jul 21 – Sep 1 | 60–90 |
| Calendula | Mar 24 | Apr 28 | May 12 | — | Jun 30 – Sep 15 | 50–70 |
| Celosia | Apr 7 | May 26 | May 26 | — | Jul 28 – Oct 13 | 60–90 |
| Columbine | Mar 3 | May 26 | May 26 | — | Jul 21 – Sep 8 | 70–100 |
| Coreopsis | Mar 3 | May 19 | May 26 | — | Aug 11 – Nov 3 | 60–80 |
| Cosmos | Apr 14 | May 19 | May 19 | — | Jul 28 – Oct 20 | 60–90 |
| Crocus | — | — | — | Aug 28 | Jul 3 – Jul 31 | 10–20 |
| Daffodils | — | — | — | Aug 28 | Jul 10 – Aug 7 | 20–40 |
| Dahlias | Apr 14 | May 26 | May 26 | — | Aug 25 – Nov 3 | 70–120 |
| Daylily | Mar 3 | — | May 26 | — | Aug 25 – Nov 3 | 60–90 |
| Dianthus | Mar 10 | Apr 21 | May 5 | — | Jun 23 – Sep 1 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 3 | May 26 | May 26 | — | Aug 25 – Nov 3 | 70–90 |
| Foxglove | Mar 3 | May 26 | May 26 | — | Jul 21 – Sep 1 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 17 | May 26 | May 26 | — | Aug 4 – Nov 10 | 70–100 |
| Geraniums | Feb 24 | — | May 19 | — | Jul 28 – Oct 6 | 70–100 |
| Gladiolus | — | May 19 | May 19 | — | Aug 18 – Oct 27 | 70–100 |
| Hostas | Feb 24 | — | May 26 | — | Aug 25 – Nov 3 | 60–90 |
| Hyacinths | — | — | — | Aug 28 | Jul 31 – Aug 21 | 14–28 |
| Hydrangeas | Feb 24 | — | May 26 | — | Aug 18 – Oct 20 | 90–150 |
| Impatiens | Mar 10 | — | May 26 | — | Aug 11 – Oct 13 | 60–75 |
| Irises | — | Division | May 26 | — | Jul 21 – Aug 25 | 60–100 |
| Larkspur | — | Apr 14 | — | — | Jun 23 – Aug 11 | 60–90 |
| Lilies | — | Division | May 26 | — | Aug 18 – Oct 20 | 70–120 |
| Lobelia | Mar 3 | — | May 12 | — | Jul 7 – Sep 8 | 70–80 |
| Lupine | Mar 3 | May 26 | May 26 | — | Jul 21 – Sep 1 | 75–100 |
| Marigolds | Mar 31 | May 19 | May 19 | — | Jul 14 – Sep 29 | 50–70 |
| Nasturtium | Apr 14 | May 19 | May 19 | — | Jul 14 – Oct 6 | 55–65 |
| Pansy | Feb 24 | — | May 12 | — | Jul 7 – Aug 25 | 70–90 |
| Peonies | — | Division | May 26 | — | Aug 4 – Sep 8 | 90–120 |
| Petunia | Mar 10 | — | May 19 | — | Jul 28 – Oct 13 | 70–90 |
| Phlox | Mar 3 | May 26 | May 26 | — | Aug 18 – Oct 27 | 80–110 |
| Portulaca | Apr 7 | May 26 | May 26 | — | Jul 14 – Sep 29 | 50–70 |
| Roses | Feb 24 | — | May 26 | — | Aug 18 – Nov 3 | 90–180 |
| Salvia | Mar 10 | — | May 19 | — | Jul 28 – Oct 6 | 70–90 |
| Sedum (Stonecrop) | Mar 3 | — | May 26 | — | Sep 29 – Nov 24 | 60–90 |
| Snapdragon | Mar 3 | — | May 12 | — | Jul 21 – Sep 15 | 70–100 |
| Sunflower | Apr 21 | May 19 | May 19 | — | Aug 11 – Oct 13 | 70–100 |
| Sweet Alyssum | Mar 24 | May 5 | May 12 | — | Jun 23 – Aug 25 | 45–60 |
| Sweet Pea | Mar 31 | Apr 7 | May 12 | — | Aug 4 – Sep 22 | 65–85 |
| Tulips | — | — | — | Aug 28 | Jul 24 – Aug 14 | 15–30 |
| Vinca (Annual) | Feb 24 | — | May 26 | — | Aug 4 – Oct 13 | 70–90 |
| Yarrow | Mar 3 | May 12 | May 26 | — | Aug 11 – Nov 3 | 60–90 |
| Zinnia | Apr 14 | May 19 | May 19 | — | Jul 28 – Oct 13 | 60–70 |
Monthly Planting Guide for Dickinson County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Dickinson County.
Frequently Asked Questions
What planting zone is Dickinson County, MI?
Dickinson 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 Dickinson County, MI?
Based on 31 years of NOAA weather station data, the median last spring frost in Dickinson County falls around May 12. In 8 out of 10 years, last frost lands between April 24 and May 28 — a 33-day window of variability. Use May 28 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Dickinson County, MI?
The median first fall frost in Dickinson County arrives around October 9. In cold years it can arrive as early as September 19; in mild years as late as November 6. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Dickinson County?
Dickinson County has a frost-free growing season of approximately 150 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending longer by about 0.83 days per decade.
What is the soil like in Dickinson County for gardening?
Dickinson County has predominantly Silt Loam soil with a pH range of 6–7.3 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Dickinson County?
Dickinson County has commercial agriculture that includes Soybeans, Corn, Hay, Dairy, Oats. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Dickinson County a good location for home gardening?
Dickinson County scores 72/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. This is an above-average location for home gardening with relatively predictable growing conditions.
Your Dickinson County Garden Planner — Free
A 22-page printable planner built for Dickinson 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