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Ishpeming, MI — Planting Guide for July

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Marquette County, Michigan Zone 5a July

July to-do list for Marquette County, Michigan

Your Marquette County, Michigan garden is entering a new phase. Here's what's on the schedule for July and why each task matters now.

Avg. last frost May 10
Avg. first frost October 20
Soil temp (4") 70°F
Watering Moderate
Pest pressure High
Daylight 15.3 hrs
  1. Time to start peppers, pole beans, and tomatoes inside

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Basket week: basil, carrots, and cucumber

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Before August arrives, get these ready
  • First harvests: basil, carrots, and cucumber
  • Fall sowing: carrots, kale, and lettuce

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Ishpeming has a classic four-season growing climate (Zone 5a). The last spring frost typically lands around May 10 and the first fall frost arrives around October 20 — a 163-day frost-free season that's long enough for tomatoes, peppers, melons, and a full succession of cool-weather crops on either side. The trick is timing: start warm-season seedlings indoors 6–8 weeks before last frost, harden them off, and plant out the week after your local frost date is statistically safe.

Soils trend Silt Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.

Drought pressure is moderate (15.6 weeks/year on average). Mulching and drip irrigation pay for themselves quickly.

🌡️ USDA Zone

5a (-20°F to -15°F min)

❄️ Avg. Last Frost

May 10

🍂 Avg. First Frost

October 20

📅 Growing Season

163 days

🌧️ Climate

Moderate 24.2" annual

💨 Wind

Unknown 0.0 mph avg

🥶 Frost Tier

Regular 0% frost-free years

🏜️ Drought

15.6 wk/yr trend improving

📍 ZIP Codes

1 ZIP

Ishpeming, MI Moderate season
163 days
Last Spring Frost May 10
163 growing days
First Fall Frost October 20

Monthly Watering Calendar for Ishpeming

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

The practical takeaway: Watering math is simple: 1 inch of rainfall delivers ~600 gallons to a 1,000 sq ft garden. Ishpeming's 24" annual rainfall covers some months entirely; others need a few hours of drip irrigation per week. The calendar tells you which is which.

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 1.5" Feb 1.8" Mar 2.6" Apr 4" May 4.5" Jun 4.3" +0.7" Jul 3.6" +0.9" Aug 3.4" +1.4" Sep 2.9" +1.1" Oct 3.2" Nov 2.4" Dec 2.3"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.5 in 7 days None
Feb 1.8 in 7 days None
Mar 2.6 in 9 days None
Apr 4 in 10 days 0.3 in Low
May 4.5 in 9 days Low
Jun 4.3 in 9 days Low
Jul 3.6 in 8 days 0.7 in Moderate
Aug 3.4 in 10 days 0.9 in Moderate
Sep 2.9 in 7 days 1.4 in Moderate
Oct 3.2 in 9 days 1.1 in Moderate
Nov 2.4 in 7 days None
Dec 2.3 in 9 days None

Annual total: 36.5 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.

Ishpeming Soil Profile

Soil Type

Silt Loam

Soil pH

6-6.8

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant May 10 → Oct 20 163 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 27 Protect by: Nov 6

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 27 Nov 6 163 days
Cautious May 18 Oct 27 162 days
Average year May 10 Oct 20 163 days
Optimistic May 2 Oct 11 162 days
Aggressive (risky) Apr 24 Oct 3 162 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±32 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

⚠️
Is the growing season changing?

Yes — growing seasons are getting shorter here (about 1.1 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

67 Good
Frost Timing Risk
10.0/10
Drought Risk
5.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.0/10
Climate Shift
4.3/10
Rainfall Challenge
0.0/10

Marquette County offers good growing conditions. A little planning around frost dates goes a long way.

Zone 5a Frost Countdown
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Loading...
Last Frost: May 10 First Frost: Oct 20

Local Gardening Help in Marquette 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 Marquette County's climate and soil.

County Extension Office

Marquette 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.

Find Master Gardeners in MI →

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.

Request a Soil Test →

Services Available in Marquette County

Soil testing Pest identification Master Gardener hotline Workshops
Finding local nurseries & garden centers in Marquette County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Marquette 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 Marquette County MI" or "garden center Marquette 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 Marquette County MI" or check your extension office and local parks department. Facebook groups like "Marquette 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
After Snap Peas (harvest ends Sep 13) 37 days until frost
After Green Beans (harvest ends Aug 30) 51 days until frost
After Chard (harvest ends Aug 23) 58 days until frost
After Peas (harvest ends Aug 30) 51 days until frost
After Squash (Summer) (harvest ends Sep 13) 37 days until frost
After Corn (harvest ends Sep 6) 44 days until frost

Sunlight & Day Length in Ishpeming

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

For new gardeners: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Ishpeming's curve is the timing layer beneath everything you grow.

Longest Day

15.6 hours

Summer solstice daylight

Shortest Day

8.4 hours

Winter solstice daylight

Peak Sun Hours

10.3 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.

14hr 12hr 2h 6h 10h 13h 17h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

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
MonthDaylight HoursPeak Sun HoursDay Length
January 8.8 hr 3.5 hr Short day
February 10.1 hr 4.3 hr Short day
March 11.6 hr 5.7 hr Short day
April 13.3 hr 7.2 hr Neutral
May 14.8 hr 8.6 hr Long day
June 15.6 hr 9.8 hr Long day
July 15.3 hr 10.3 hr Long day
August 14 hr 8.8 hr Long day
September 12.3 hr 7.2 hr Neutral
October 10.6 hr 5.3 hr Short day
November 9.1 hr 3.6 hr Short day
December 8.4 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 Ishpeming

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

Why this matters: Watching soil temperature (not air) is the single biggest upgrade most new gardeners can make. Ishpeming's typical curve helps you plan — but a $5 soil thermometer in the bed beats any average.

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.

60°F 70°F 23° 45° 68° 90° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 14°F 22°F ❄️ Dormant ~36 weeks
Feb 17°F 24°F ❄️ Dormant ~36 weeks
Mar 26°F 29°F ❄️ Dormant ~36 weeks
Apr 42°F 40°F 🐢 Slow ~24 weeks
May 55°F 49°F ♻️ Active ~14 weeks
Jun 64°F 58°F ♻️ Active ~14 weeks
Jul 71°F 66°F 🔥 Peak ~8 weeks
Aug 72°F 70°F 🔥 Peak ~8 weeks
Sep 64°F 64°F ♻️ Active ~14 weeks
Oct 54°F 56°F ♻️ Active ~14 weeks
Nov 36°F 43°F ❄️ Dormant ~36 weeks
Dec 24°F 33°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 Ishpeming

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Why this matters: Pest score isn't pass/fail. It's a planning input. Higher scores mean: more compost (resilient plants), wider spacing (air circulation), resistant varieties (built-in defense), and inspection (catch issues at egg stage).

Insect Pest Pressure

5.3 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

5.1 / 10

Moderate — watch for mildew and blight during wet periods.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 5 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate May, Jun, Jul, Aug
Cabbage worms Moderate Jun, Jul, Aug
Colorado potato beetle Moderate Jun, Jul
Flea beetles Moderate May, Jun, Jul
Slugs Moderate May, Jun, Jul, Aug, Sep
Organic pest management tips
  • Use row covers on susceptible crops during peak pest months
  • Apply neem oil preventatively every 7-14 days during active pest season
  • Interplant with strong-scented herbs (basil, marigold) to confuse pests
  • Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
  • Practice crop rotation — never plant the same family in the same spot within 3 years

Cover Crops for Ishpeming

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.

What this means for you: Bare soil is wasted soil — it loses nutrients to rain, dries out, compacts, and gets taken over by weeds. Cover crops (clovers, ryegrass, vetch, peas) are the "between seasons" trick that makes soil better every year. In Ishpeming, you can fit a cover crop into the gaps.

Spring Cover Crops (2 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 16 Aug 25 Rapid growth, attracts pollinators, suppresses weeds
White clover Apr 9 Aug 25 ✓ 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 Oct 6 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 27 Apr 19 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 25 Apr 26 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 12 Apr 19 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 28 Apr 26 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 22 Apr 26 Erosion control, weed suppression, good biomass

Wind & Microclimate in Ishpeming

What this means for you: Wind shapes the garden you don't think about: bee paths, evaporation, structural stress on tomato cages. Ishpeming's 0.0 mph background level is a baseline you should know before placing the tallest crops (sunflowers, pole beans, sweet corn).

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 12 mph   Summer: 8 mph

Fall: 11 mph   Winter: 13 mph

Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

7/10

Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.

Frost Pocket Risk

Low

Relatively flat terrain (211 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in Ishpeming

How much water you can collect, when to collect it, and what size system you need for your garden.

What this means for you: A single rain barrel under a downspout catches 50 gallons in a 0.5" storm. Ishpeming's 24" annual rainfall means even modest harvesting systems quickly amortize their cost in water savings.

Annual Collection

18,191 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 1,500 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 36.5 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 18,191 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

🥬 Vegetables to Grow in Ishpeming

105 vegetables matched to Zone 5a with planting dates calibrated for Ishpeming.

Show all 105 vegetables with 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 11 Jun 14 – Aug 16 30–50
Asparagus May 24 730–1095
Beets Apr 26 Aug 11 Jun 21 – Jul 19 50–70
Belgian Endive Apr 5 Apr 26 May 10 Aug 11 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 11 Jun 21 – Jul 26 40–60
Broccoli Apr 5 Apr 26 May 10 Aug 11 Jul 12 – Aug 23 60–90
Broccoli Rabe Apr 5 Apr 26 May 10 Aug 11 Jun 21 – Jul 26 40–60
Brussels Sprouts Apr 5 Apr 26 May 10 Aug 11 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 11 Jul 12 – Sep 6 60–100
Calabash Mar 15 May 17 May 24 Aug 16 – Oct 11 80–120
Carrots Apr 26 Aug 11 Jun 28 – Aug 2 60–80
Cauliflower Apr 5 Apr 26 May 10 Aug 11 Jul 5 – Sep 6 55–100
Celeriac Apr 5 Apr 26 May 10 Aug 11 Aug 23 – Sep 27 100–120
Celery Apr 5 Apr 26 May 10 Aug 11 Aug 2 – Sep 27 80–120
Celtuce Apr 5 Apr 26 May 10 Aug 11 Jul 12 – Aug 23 60–90
Chard Apr 5 Apr 26 May 10 Aug 11 Jul 5 – Aug 23 50–60
Chickpeas Apr 5 Apr 26 May 10 Aug 11 Aug 2 – Sep 13 80–110
Chicory Apr 5 Apr 26 May 10 Aug 11 Jul 12 – Aug 23 60–85
Chinese Cabbage Apr 5 Apr 26 May 10 Aug 11 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 11 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 11 May 24 – Jun 14 14–21
Crookneck Squash Apr 5 May 17 May 24 Jul 12 – Aug 9 45–60
Crosne Apr 26 Aug 11 Sep 27 – Oct 11 150–200
Cucumber Apr 5 May 17 May 24 Jul 19 – Sep 13 50–70
Daikon Apr 26 Aug 11 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 11 Jun 28 – Aug 2 45–65
Escarole Apr 5 Apr 26 May 10 Aug 11 Jul 5 – Aug 2 50–70
Fava Beans Apr 5 Apr 26 May 10 Aug 11 Jul 26 – Sep 6 75–100
Fennel Mar 15 May 17 May 24 Jul 26 – Sep 6 60–90
Garlic Sep 8 Dec 8 – Feb 23 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 11 Jun 28 – Jul 26 45–60
Kale Apr 5 Apr 26 May 10 Aug 11 Jul 5 – Aug 30 50–70
Kidney Beans May 17 Aug 16 – Sep 20 85–110
Kohlrabi Apr 5 Apr 26 May 10 Aug 11 Jun 28 – Aug 2 45–65
Komatsuna Apr 5 Apr 26 May 10 Aug 11 Jun 14 – Jul 19 35–50
Leeks Apr 5 Apr 26 May 10 Aug 11 Aug 9 – Oct 25 90–150
Lentils Apr 5 Apr 26 May 10 Aug 11 Aug 2 – Sep 13 80–110
Lettuce Apr 5 Apr 26 May 10 Aug 11 Jun 14 – Aug 23 30–60
Lima Beans May 17 Jul 19 – Aug 30 60–90
Mache Apr 5 Apr 26 May 10 Aug 11 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 11 May 17 – Jun 14 7–21
Mitsuba Apr 5 Apr 26 May 3 Aug 11 Jun 28 – Aug 23 50–70
Mizuna Apr 5 Apr 26 May 10 Aug 11 Jun 14 – Jul 12 30–45
Mustard Greens Apr 5 Apr 26 May 10 Aug 11 Jun 14 – Aug 16 30–50
Napa Cabbage Apr 5 Apr 26 May 10 Aug 11 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 11 Aug 9 – Sep 27 90–120
Pac Choi Apr 5 Apr 26 May 10 Aug 11 Jun 21 – Jul 19 40–55
Parsnip Apr 26 Aug 11 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 11 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 11 Jun 21 – Jul 26 40–60
Radicchio Apr 5 Apr 26 May 10 Aug 11 Jul 12 – Aug 16 60–80
Radish Apr 26 Aug 11 May 24 – Jun 14 22–35
Rhubarb May 31 365–730
Romanesco Apr 5 Apr 26 May 10 Aug 11 Jul 26 – Sep 6 75–100
Rutabaga Apr 26 Aug 11 Jul 19 – Aug 23 80–100
Salsify Apr 26 Aug 11 Aug 9 – Sep 20 100–130
Savoy Cabbage Apr 5 Apr 26 May 10 Aug 11 Jul 19 – Sep 13 70–110
Scallions Apr 5 Apr 26 May 10 Aug 11 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 11 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 11 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 11 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 11 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 11 Jun 7 – Jul 12 40–60
Watercress Apr 5 Apr 26 May 10 Aug 11 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 Ishpeming

27 fruits matched to Zone 5a with planting dates calibrated for Ishpeming.

Show all 27 fruits with 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 Ishpeming

34 herbs matched to Zone 5a with planting dates calibrated for Ishpeming.

Show all 34 herbs with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Apr 5 Apr 26 May 3 Aug 11 365–730
Anise Apr 5 Apr 26 May 3 Aug 11 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 11 Jun 28 – Aug 16 50–60
Caraway Apr 5 Apr 26 May 3 Aug 11 365–450
Catnip May 17 Jul 19 – Sep 20 60–80
Chamomile Apr 5 Apr 26 May 3 Aug 11 Jul 5 – Sep 13 60–90
Chervil Apr 5 Apr 26 May 3 Aug 11 Jun 14 – Aug 16 40–60
Chives May 17 Jul 19 – Sep 27 60–90
Cilantro Apr 5 Apr 26 May 3 Aug 11 Jun 14 – Aug 16 40–60
Comfrey May 17 Jul 19 – Sep 27 60–90
Cumin Apr 5 Apr 26 May 3 Aug 11 Aug 16 – Oct 18 100–120
Dill Apr 5 Apr 26 May 3 Aug 11 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 11 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 11 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 11 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 Ishpeming

51 flowers matched to Zone 5a with planting dates calibrated for Ishpeming.

Show all 51 flowers with 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 Sep 8 Oct 13 – Nov 10 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 Sep 8 Jul 21 – Aug 11 10–20
Daffodils Sep 8 Jul 28 – Aug 18 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 Sep 8 Aug 18 – Sep 15 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 Sep 8 Aug 11 – Sep 1 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 Ishpeming

ZIP Codes in Ishpeming

Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Marquette County.

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Your Marquette County Garden Planner — Free

A 22-page printable planner built for Marquette 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.

Instant PDF download. No spam, unsubscribe any time.

Best Seller
The Gardener's Encyclopedia to Companion Planting

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
See what's inside →
Reader favourite
Seed Saving & Storage Guide

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
Save a lifetime of seed money →
Composting Guide for Homesteaders

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
Start composting today →

Town-level data is aggregated from per-ZIP NOAA GHCN-D measurements (1 ZIP code in Ishpeming), USDA SSURGO soil survey, and the US Drought Monitor weekly archive. Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: July 2026.