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Bowman County, ND — Planting Guide

Bowman County, North Dakota Zone 4b June

June in Bowman County, North Dakota — your action list

A quick June briefing for Bowman County, North Dakota gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 15
Avg. first frost September 24
Soil temp (4") 64°F
Watering High
Pest pressure High
Daylight 15.5 hrs
  1. Transplant basil, cucumber, and peppers outside

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

  2. Indoor seed-starting week for cucumber, kale, and lettuce

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  3. Pick lettuce, radish, and arugula

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

To set up a strong July, finish these tasks
  • Starting indoors: basil, peppers, and pole beans
  • First harvests: basil, carrots, and cucumber
  • Fall sowing: carrots, kale, and lettuce

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Bowman County is in USDA Zone 4b. The average last spring frost is May 15 and the first fall frost is September 24, giving you a growing season of approximately 132 days.

At an elevation of 753 ft, Bowman County receives approximately 25.8 in of rainfall annually. Summer highs average 81°F with winter lows around 4°F. The predominant soil type is Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 28 days year to year — ranging from May 4 in warm years to June 2 in cold years. The growing season is trending longer by about 3.33 days per decade. Bowman County scores 55/100 (Moderate) on the Microclimate Index.

🌡️ Zone

4b (-25°F to -20°F min)

❄️ Last Frost

May 15

🍂 First Frost

September 24

📅 Growing Season

132 days

⛰️ Elevation

753 ft

🌧️ Annual Rainfall

25.8 in

Bowman County, ND Short season
132 days
Last Spring Frost May 15
132 growing days
First Fall Frost September 24

Monthly Watering Calendar for Bowman 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: Watering by the calendar wastes water. Watering by the soil moisture (or by a free rain gauge) cuts your water use 30%+ and produces healthier roots. Bowman County's 26" annual baseline is the starting point.

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 2" Feb 1.4" Mar 2.1" +1.8" Apr 2.5" +1.1" May 3.2" +2.4" Jun 1.9" +2" Jul 2.3" +1.7" Aug 2.6" +2.2" Sep 2.1" +2.2" Oct 2.1" Nov 2.1" Dec 1.6"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 2 in 7 days None
Feb 1.4 in 6 days None
Mar 2.1 in 7 days None
Apr 2.5 in 6 days 1.8 in High
May 3.2 in 8 days 1.1 in Moderate
Jun 1.9 in 5 days 2.4 in High
Jul 2.3 in 5 days 2 in High
Aug 2.6 in 7 days 1.7 in High
Sep 2.1 in 6 days 2.2 in High
Oct 2.1 in 6 days 2.2 in High
Nov 2.1 in 5 days None
Dec 1.6 in 6 days None

Annual total: 25.9 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.

Bowman County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.8

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 15 → Sep 24 132 frost-free days Protect crops frost returns May Jun Jul Aug Sep Oct Nov Safe: Jun 2 Protect by: Oct 11

Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.

How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.

Planting Strategy Last Spring Frost First Fall Frost Frost-Free Days
Conservative (safest) Jun 2 Oct 11 131 days
Cautious May 21 Oct 3 135 days
Average year May 15 Sep 24 132 days
Optimistic May 12 Sep 20 131 days
Aggressive (risky) May 4 Sep 12 131 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±28 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 longer here (about 3.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

55 Moderate
Frost Timing Risk
10.0/10
Drought Risk
5.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.0/10
Climate Shift
10.0/10
Rainfall Challenge
1.7/10

Bowman County presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 4b Frost Countdown
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Loading...
Last Frost: May 15 First Frost: Sep 24

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

County Extension Office

Bowman County North Dakota State University Extension Extension Office

Phone: 701-231-8944

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 ND →

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 Bowman County

Soil testing Short-season gardening Pest identification
Finding local nurseries & garden centers in Bowman County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Bowman 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 Bowman County ND" or "garden center Bowman 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 Bowman County ND" or check your extension office and local parks department. Facebook groups like "Bowman County Gardeners" or "North Dakota 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 Turnip (harvest ends Jul 31) 55 days until frost
After Crookneck Squash (harvest ends Aug 21) 34 days until frost
After Scallions (harvest ends Aug 7) 48 days until frost
After Patty Pan Squash (harvest ends Aug 21) 34 days until frost
After Mustard Greens (harvest ends Aug 21) 34 days until frost
After Radish (harvest ends Jul 3) 83 days until frost

Sunlight & Day Length in Bowman County

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

Quick context: Onions are a great example of why day length matters. They "bulb up" only when daylight hits a specific number of hours — plant the wrong variety (short-day in the north, long-day in the south) and you'll get tiny bulbs no matter how well you grow them. Bowman County's latitude determines which onion varieties succeed.

Longest Day

15.5 hours

Summer solstice daylight

Shortest Day

8.4 hours

Winter solstice daylight

Peak Sun Hours

10.5 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 3h 7h 10h 14h 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 5 hr Short day
February 10.1 hr 6.1 hr Short day
March 11.6 hr 6.6 hr Short day
April 13.3 hr 8.5 hr Neutral
May 14.8 hr 8.8 hr Long day
June 15.5 hr 10.3 hr Long day
July 15.2 hr 10.5 hr Long day
August 14 hr 9.4 hr Long day
September 12.3 hr 8.4 hr Neutral
October 10.7 hr 7.2 hr Short day
November 9.2 hr 5.3 hr Short day
December 8.4 hr 4.7 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting in Bowman County

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

For new gardeners: Soil heats slower than air in spring and cools slower in fall. That's why "warm" April air doesn't mean "plant tomatoes" — soil still trails by weeks. Bowman County's monthly soil curve makes the lag visible.

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 15°F 25°F ❄️ Dormant ~36 weeks
Feb 14°F 24°F ❄️ Dormant ~36 weeks
Mar 24°F 28°F ❄️ Dormant ~36 weeks
Apr 39°F 38°F ❄️ Dormant ~36 weeks
May 54°F 51°F ♻️ Active ~14 weeks
Jun 65°F 60°F ♻️ Active ~14 weeks
Jul 72°F 66°F 🔥 Peak ~8 weeks
Aug 72°F 69°F 🔥 Peak ~8 weeks
Sep 65°F 64°F ♻️ Active ~14 weeks
Oct 51°F 56°F ♻️ Active ~14 weeks
Nov 39°F 42°F ❄️ Dormant ~36 weeks
Dec 23°F 31°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 Bowman County

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

Quick context: Warm humid regions cycle through pest generations 3-5x faster than cold dry regions. Bowman County's pest score is your early-warning system: high score means commit to disease-resistant varieties and accept some crop loss to bugs.

Insect Pest Pressure

5.1 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

2.5 / 10

Low disease risk — dry conditions reduce fungal problems.

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 Low Jun, Jul
Flea beetles Low May, Jun, Jul
Slugs Low May, Jun, Jul, Aug, Sep
Organic pest management tips
  • Maintain healthy soil with regular compost additions to build natural pest resistance
  • Practice crop rotation annually to break pest cycles
  • Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow

Cover Crops for Bowman County

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

The practical takeaway: You don't need a farm to use cover crops. A 4x8 raised bed accepts cover crops just as well as a half-acre. Bowman County's climate determines the calendar; the principle is universal.

Spring Cover Crops (2 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 24 Jul 23 Rapid growth, attracts pollinators, suppresses weeds
White clover Apr 17 Jul 23 ✓ 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 28 Aug 27 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 3 May 1 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 6 Apr 24 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Aug 27 Apr 24 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 4 Apr 24 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jun 22 Apr 24 Erosion control, weed suppression, good biomass

Wind & Microclimate in Bowman County

For new gardeners: Wind is the silent water thief. Every breeze pulls moisture from leaves and soil. Bowman County's 12.9 mph average is one piece of the watering math: rainfall + irrigation must exceed evaporation + transpiration, and wind boosts both losses.

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

Seasonal Wind Speed

Spring: 17 mph   Summer: 13 mph

Fall: 12 mph   Winter: 16 mph

Prevailing wind: S. Windy area — plant a windbreak hedge on the S side of your garden.

Windbreak Benefit

8.6/10

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 (190 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in Bowman 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: A gravity-fed rain barrel ($75) is the easy entry. A larger cistern ($500-1500) covers a whole growing season. Bowman County's 26" annual rainfall determines whether the larger system is overkill or essential.

Annual Collection

12,908 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

7 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, Jul, Aug

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Feb, Jun, 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 25.9 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 12,908 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Stock up on stored water before your dry season (Feb, Jun, Dec)
  • Use a first-flush diverter to keep roof debris out of your collection

Soil & Growing Conditions in Bowman County

Soil Type

Loam

Soil pH 6.7–7.8 · Excessively Drained drainage

Native soil is well-suited to most vegetables and herbs with regular compost additions.

Watering Needs

Drought stress: 5.5/10

Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.

Season Tips

132-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.

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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 Bowman County

95 vegetables that grow well in Zone 4b with planting dates for Bowman County.

Show all 95 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Apr 3 May 29 Jun 5 Aug 28 – Oct 2 80–100
Amaranth Mar 13 May 29 Jun 5 Sep 4 – Oct 23 90–120
Arugula Apr 3 May 8 May 15 Jul 2 Jun 19 – Aug 21 30–50
Asparagus May 29 730–1095
Beets May 8 Jul 2 Jul 3 – Jul 31 50–70
Belgian Endive Apr 3 May 8 May 15 Jul 2 Sep 4 – Oct 9 110–150
Black Beans May 29 Aug 28 – Oct 16 90–120
Bok Choy Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 31 40–60
Broccoli Apr 3 May 8 May 15 Jul 2 Jul 17 – Aug 28 60–90
Broccoli Rabe Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 31 40–60
Brussels Sprouts Apr 3 May 8 May 15 Jul 2 Aug 14 – Oct 9 90–130
Butternut Squash Apr 3 May 29 Jun 5 Sep 4 – Oct 9 85–110
Cabbage Apr 3 May 8 May 15 Jul 2 Jul 17 – Sep 11 60–100
Carrots May 8 Jul 2 Jul 10 – Aug 14 60–80
Cauliflower Apr 3 May 8 May 15 Jul 2 Jul 10 – Sep 11 55–100
Celeriac Apr 3 May 8 May 15 Jul 2 Aug 28 – Oct 2 100–120
Celery Apr 3 May 8 May 15 Jul 2 Aug 7 – Oct 2 80–120
Celtuce Apr 3 May 8 May 15 Jul 2 Jul 17 – Aug 28 60–90
Chard Apr 3 May 8 May 15 Jul 2 Jul 10 – Aug 28 50–60
Chickpeas Apr 3 May 8 May 15 Jul 2 Aug 7 – Sep 18 80–110
Chicory Apr 3 May 8 May 15 Jul 2 Jul 17 – Aug 28 60–85
Chinese Cabbage Apr 3 May 8 May 15 Jul 2 Jul 10 – Aug 7 50–70
Christmas Lima Beans Mar 13 May 29 Jun 5 Aug 28 – Oct 2 80–100
Collard Greens Apr 3 May 8 May 15 Jul 2 Jul 10 – Sep 11 55–75
Corn May 29 Jul 31 – Sep 25 60–100
Cress Apr 3 May 8 May 15 Jul 2 May 29 – Jun 19 14–21
Crookneck Squash Apr 3 May 29 Jun 5 Jul 24 – Aug 21 45–60
Crosne May 8 Jul 2 Oct 9 – Oct 2 150–200
Cucumber Apr 3 May 29 Jun 5 Jul 31 – Sep 25 50–70
Daikon May 8 Jul 2 Jul 3 – Jul 31 50–70
Delicata Squash Apr 3 May 29 Jun 5 Aug 28 – Oct 2 80–100
Edamame May 29 Aug 14 – Sep 25 75–100
Endive Apr 3 May 8 May 15 Jul 2 Jul 3 – Aug 7 45–65
Escarole Apr 3 May 8 May 15 Jul 2 Jul 10 – Aug 7 50–70
Fava Beans Apr 3 May 8 May 15 Jul 2 Jul 31 – Sep 11 75–100
Fennel Mar 13 May 29 Jun 5 Aug 7 – Sep 18 60–90
Garlic Aug 13 Nov 12 – Jan 7 90–240
Green Beans May 29 Jul 24 – Sep 18 50–65
Horseradish May 29 Oct 2 – Oct 23 120–180
Hubbard Squash Apr 3 May 29 Jun 5 Sep 18 – Oct 23 100–120
Kabocha Apr 3 May 29 Jun 5 Sep 4 – Oct 2 85–100
Kai Lan Apr 3 May 8 May 15 Jul 2 Jul 3 – Jul 31 45–60
Kale Apr 3 May 8 May 15 Jul 2 Jul 10 – Sep 4 50–70
Kidney Beans May 29 Aug 28 – Oct 2 85–110
Kohlrabi Apr 3 May 8 May 15 Jul 2 Jul 3 – Aug 7 45–65
Komatsuna Apr 3 May 8 May 15 Jul 2 Jun 19 – Jul 24 35–50
Leeks Apr 3 May 8 May 15 Jul 2 Aug 14 – Oct 9 90–150
Lentils Apr 3 May 8 May 15 Jul 2 Aug 7 – Sep 18 80–110
Lettuce Apr 3 May 8 May 15 Jul 2 Jun 19 – Aug 28 30–60
Lima Beans May 29 Jul 31 – Sep 11 60–90
Mache Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 31 40–60
Melon Apr 3 May 29 Jun 5 Aug 14 – Oct 2 70–100
Microgreens Apr 3 May 8 May 15 Jul 2 May 22 – Jun 19 7–21
Mitsuba Apr 3 May 8 May 8 Jul 2 Jul 3 – Aug 28 50–70
Mizuna Apr 3 May 8 May 15 Jul 2 Jun 19 – Jul 17 30–45
Mustard Greens Apr 3 May 8 May 15 Jul 2 Jun 19 – Aug 21 30–50
Napa Cabbage Apr 3 May 8 May 15 Jul 2 Jul 10 – Aug 14 55–75
Onion Apr 3 May 8 May 15 Jul 2 Aug 14 – Oct 2 90–120
Pac Choi Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 24 40–55
Parsnip May 8 Jul 2 Aug 21 – Oct 2 100–130
Patty Pan Squash Apr 3 May 29 Jun 5 Jul 24 – Aug 21 45–60
Peas Apr 3 May 8 May 15 Jul 2 Jul 10 – Sep 4 55–70
Peppers Feb 27 May 29 Jun 5 Aug 7 – Oct 16 60–90
Pole Beans Mar 13 May 29 Jun 5 Jul 31 – Sep 25 55–70
Potatoes Mar 13 May 29 Jun 5 Aug 14 – Oct 23 70–120
Pumpkin Apr 3 May 29 Jun 5 Sep 4 – Oct 23 85–120
Purslane Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 31 40–60
Radicchio Apr 3 May 8 May 15 Jul 2 Jul 17 – Aug 21 60–80
Radish May 8 Jul 2 Jun 5 – Jun 26 22–35
Rhubarb Jun 12 365–730
Romanesco Apr 3 May 8 May 15 Jul 2 Jul 31 – Sep 11 75–100
Rutabaga May 8 Jul 2 Jul 31 – Sep 4 80–100
Salsify May 8 Jul 2 Aug 21 – Oct 2 100–130
Savoy Cabbage Apr 3 May 8 May 15 Jul 2 Jul 24 – Sep 18 70–110
Scallions Apr 3 May 8 May 15 Jul 2 Jul 10 – Aug 7 50–70
Scarlet Runner Beans Mar 13 May 29 Jun 5 Aug 7 – Sep 11 60–80
Shallot Apr 3 May 8 May 15 Jul 2 Aug 14 – Oct 2 90–120
Shiso Mar 20 May 22 Jun 5 Jul 31 – Sep 25 50–70
Snap Peas Mar 13 May 29 Jun 5 Jul 31 – Sep 25 55–70
Snow Peas Apr 3 May 8 May 15 Jul 2 Jul 10 – Sep 4 50–65
Soybeans May 29 Aug 21 – Oct 16 80–120
Spaghetti Squash Apr 3 May 29 Jun 5 Sep 4 – Oct 2 85–100
Spinach Apr 3 May 8 May 15 Jul 2 Jun 19 – Aug 21 35–50
Squash (Summer) Apr 3 May 29 Jun 5 Jul 24 – Sep 25 45–65
Squash (Winter) Apr 3 May 29 Jun 5 Aug 28 – Oct 23 80–120
Sunchoke May 29 Sep 18 – Oct 23 110–150
Sweet Corn May 29 Jul 31 – Sep 11 60–90
Tatsoi Apr 3 May 8 May 15 Jul 2 Jun 19 – Jul 24 35–50
Tomatillo Mar 13 May 29 Jun 5 Aug 7 – Oct 16 60–85
Tomatoes Mar 13 May 29 Jun 5 Aug 7 – Oct 16 60–85
Turnip May 8 Jul 2 Jun 19 – Jul 24 40–60
Watercress Apr 3 May 8 May 15 Jul 2 Jun 26 – Jul 31 40–60
Watermelon Apr 3 May 29 Jun 5 Aug 14 – Oct 2 70–100
Wax Beans May 29 Jul 24 – Sep 18 50–65
Zucchini Apr 3 May 29 Jun 5 Jul 24 – Sep 18 45–60

🍓 Fruits to Grow in Bowman County

22 fruits that grow well in Zone 4b with planting dates for Bowman County.

Show all 22 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Jun 12 Sep 11 – Nov 6 90–180
Aronia Jun 12 730–1095
Blueberries Jun 12 730–1095
Cantaloupe Jun 12 Aug 21 – Sep 25 70–90
Cranberries Jun 12 730–1095
Currants Jun 12 730–1095
Elderberries Jun 12 730–1095
Goji Berries Jun 12 730–1095
Gooseberries Jun 12 730–1095
Grapes Jun 12 730–1095
Ground Cherry Jun 12 Aug 21 – Oct 16 65–80
Hardy Kiwi Jun 12 1095–1825
Haskaps Jun 12 730–1095
Honeydew Jun 12 Sep 4 – Oct 16 80–110
Jostaberry Jun 12 730–1095
Lingonberries Jun 12 730–1095
Medlar Jun 12 1095–1825
Mulberries Jun 12 730–1825
Persimmon Jun 12 1095–2555
Raspberries Jun 12 365–730
Serviceberries Jun 12 730–1095
Strawberries Jun 12 Sep 11 – Nov 6 90–365

🌿 Herbs to Grow in Bowman County

30 herbs that grow well in Zone 4b with planting dates for Bowman County.

Show all 30 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Apr 3 May 8 May 8 Jul 2 365–730
Anise Apr 3 May 8 May 8 Jul 2 Aug 7 – Oct 2 90–120
Basil Mar 20 May 22 Jun 5 Jul 31 – Oct 2 50–75
Bee Balm May 22 Aug 21 – Oct 16 90–120
Borage Apr 3 May 8 May 8 Jul 2 Jul 3 – Aug 21 50–60
Caraway Apr 3 May 8 May 8 Jul 2 365–450
Catnip May 22 Jul 24 – Sep 25 60–80
Chamomile Apr 3 May 8 May 8 Jul 2 Jul 10 – Sep 18 60–90
Chervil Apr 3 May 8 May 8 Jul 2 Jun 19 – Aug 21 40–60
Chives May 22 Jul 24 – Oct 2 60–90
Cilantro Apr 3 May 8 May 8 Jul 2 Jun 19 – Aug 21 40–60
Comfrey May 22 Jul 24 – Oct 2 60–90
Dill Apr 3 May 8 May 8 Jul 2 Jun 19 – Aug 21 40–60
Fennel (herb) Apr 3 May 8 May 8 Jul 2 Jul 10 – Sep 18 60–90
Garlic Chives May 22 Jul 24 – Oct 2 60–90
Horehound May 22 Aug 7 – Oct 2 75–90
Hyssop May 22 Jul 31 – Oct 2 70–90
Lemon Balm May 22 Jul 24 – Sep 11 60–70
Lovage May 22 Jul 31 – Oct 2 70–90
Mint May 22 Jul 24 – Oct 2 60–90
Oregano May 22 Jul 24 – Oct 2 60–90
Parsley Apr 3 May 8 May 8 Jul 2 Jul 10 – Sep 11 60–80
Rue May 22 Jul 31 – Oct 2 70–90
Sage May 22 Aug 7 – Oct 2 75–90
Savory May 22 Jul 17 – Sep 11 50–70
Sorrel Apr 3 May 8 May 8 Jul 2 Jun 19 – Aug 21 40–60
Tarragon May 22 Jul 24 – Oct 2 60–90
Thai Basil Mar 20 May 22 Jun 5 Jul 31 – Oct 2 50–75
Thyme May 22 Jul 31 – Oct 2 70–90
Valerian May 22 Sep 25 – Oct 16 120–180

🌸 Flowers to Grow in Bowman County

49 flowers that grow well in Zone 4b with planting dates for Bowman County.

Show all 49 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 27 May 22 May 22 Jul 17 – Oct 2 60–75
Alliums Aug 13 Sep 17 – Oct 15 28–42
Astilbe Mar 6 May 29 Aug 21 – Oct 16 70–100
Bachelor's Button Mar 27 May 1 May 15 Jul 17 – Sep 18 60–90
Begonias Feb 27 May 22 Jul 31 – Oct 9 70–90
Black-eyed Susan Mar 6 May 15 May 29 Aug 21 – Nov 6 60–80
Bleeding Hearts Mar 6 May 29 Jul 24 – Sep 4 60–90
Calendula Mar 27 May 1 May 15 Jul 3 – Sep 18 50–70
Celosia Apr 10 May 29 May 29 Jul 31 – Oct 16 60–90
Columbine Mar 6 May 29 May 29 Jul 24 – Sep 11 70–100
Coreopsis Mar 6 May 22 May 29 Aug 14 – Nov 6 60–80
Cosmos Apr 17 May 22 May 22 Jul 31 – Oct 23 60–90
Crocus Aug 13 Jun 18 – Jul 16 10–20
Daffodils Aug 13 Jun 25 – Jul 23 20–40
Dahlias Apr 17 May 29 May 29 Aug 28 – Nov 6 70–120
Daylily Mar 6 May 29 Aug 28 – Nov 6 60–90
Dianthus Mar 13 Apr 24 May 8 Jun 26 – Sep 4 60–80
Echinacea (Purple Coneflower) Mar 6 May 29 May 29 Aug 28 – Nov 6 70–90
Foxglove Mar 6 May 29 May 29 Jul 24 – Sep 4 80–120
Gaillardia (Blanket Flower) Mar 20 May 29 May 29 Aug 7 – Nov 13 70–100
Geraniums Feb 27 May 22 Jul 31 – Oct 9 70–100
Gladiolus May 22 May 22 Aug 21 – Oct 30 70–100
Hostas Feb 27 May 29 Aug 28 – Nov 6 60–90
Hyacinths Aug 13 Jul 16 – Aug 6 14–28
Hydrangeas Feb 27 May 29 Aug 21 – Oct 23 90–150
Impatiens Mar 13 May 29 Aug 14 – Oct 16 60–75
Irises Division May 29 Jul 24 – Aug 28 60–100
Larkspur Apr 17 Jun 26 – Aug 14 60–90
Lilies Division May 29 Aug 21 – Oct 23 70–120
Lobelia Mar 6 May 15 Jul 10 – Sep 11 70–80
Lupine Mar 6 May 29 May 29 Jul 24 – Sep 4 75–100
Marigolds Apr 3 May 22 May 22 Jul 17 – Oct 2 50–70
Nasturtium Apr 17 May 22 May 22 Jul 17 – Oct 9 55–65
Pansy Feb 27 May 15 Jul 10 – Aug 28 70–90
Peonies Division May 29 Aug 7 – Sep 11 90–120
Petunia Mar 13 May 22 Jul 31 – Oct 16 70–90
Phlox Mar 6 May 29 May 29 Aug 21 – Oct 30 80–110
Portulaca Apr 10 May 29 May 29 Jul 17 – Oct 2 50–70
Roses Feb 27 May 29 Aug 21 – Nov 6 90–180
Salvia Mar 13 May 22 Jul 31 – Oct 9 70–90
Sedum (Stonecrop) Mar 6 May 29 Oct 2 – Nov 27 60–90
Snapdragon Mar 6 May 15 Jul 24 – Sep 18 70–100
Sunflower Apr 24 May 22 May 22 Aug 14 – Oct 16 70–100
Sweet Alyssum Mar 27 May 8 May 15 Jun 26 – Aug 28 45–60
Sweet Pea Apr 3 Apr 10 May 15 Aug 7 – Sep 25 65–85
Tulips Aug 13 Jul 9 – Jul 30 15–30
Vinca (Annual) Feb 27 May 29 Aug 7 – Oct 16 70–90
Yarrow Mar 6 May 15 May 29 Aug 14 – Nov 6 60–90
Zinnia Apr 17 May 22 May 22 Jul 31 – Oct 16 60–70
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Monthly Planting Guide for Bowman County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Bowman County, ND?

Bowman 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 Bowman County, ND?

Based on 31 years of NOAA weather station data, the median last spring frost in Bowman County falls around May 15. In 8 out of 10 years, last frost lands between May 4 and June 2 — a 28-day window of variability. Use June 2 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Bowman County, ND?

The median first fall frost in Bowman County arrives around September 24. In cold years it can arrive as early as September 12; in mild years as late as October 11. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Bowman County?

Bowman County has a frost-free growing season of approximately 132 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 3.33 days per decade.

What is the soil like in Bowman County for gardening?

Bowman County has predominantly Loam soil with a pH range of 6.7–7.8 and Excessively Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Bowman County?

Bowman County has commercial agriculture that includes Wheat, Corn, Soybeans, Sunflowers. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is Bowman County a good location for home gardening?

Bowman County scores 55/100 (Moderate) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.

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A 22-page printable planner built for Bowman 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.

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Composting Guide for Homesteaders

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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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Bowman County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.