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Swift County, MN — Planting Guide

Swift County, Minnesota Zone 4b June

What to do in June

June is a pivotal month for Swift County, Minnesota gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 2
Avg. first frost October 4
Soil temp (4") 65°F
Watering Low
Pest pressure High
Daylight 15.4 hrs
  1. Begin indoor sowing: basil, cucumber, and kale

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Bring in the carrots, kale, and lettuce

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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

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Swift County is in USDA Zone 4b. The average last spring frost is May 2 and the first fall frost is October 4, giving you a growing season of approximately 155 days.

At an elevation of 1,212 ft, Swift County receives approximately 35.3 in of rainfall annually. Summer highs average 83°F with winter lows around 7°F. The predominant soil type is Silt Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 24 days year to year — ranging from April 21 in warm years to May 15 in cold years. The growing season is trending shorter by about 1.21 days per decade. Swift County scores 70/100 (Good) on the Microclimate Index.

🌡️ Zone

4b (-25°F to -20°F min)

❄️ Last Frost

May 2

🍂 First Frost

October 4

📅 Growing Season

155 days

⛰️ Elevation

1,212 ft

🌧️ Annual Rainfall

35.3 in

Swift County, MN Moderate season
155 days
Last Spring Frost May 2
155 growing days
First Fall Frost October 4

Monthly Watering Calendar for Swift County

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

The practical takeaway: In Swift County, the watering question isn't "how often" — it's "is the soil moist 4 inches down?" Stick a finger in. Dry? Water. Damp? Wait. The 35" annual rainfall is just the starting context.

1"/wk 0" 1.3" 2.5" 3.8" 5" Jan 1.6" Feb 1.8" Mar 2.7" +1.4" Apr 2.9" May 4.6" Jun 4.5" +0.5" Jul 3.8" +0.7" Aug 3.6" +1.5" Sep 2.8" +2" Oct 2.3" Nov 2.6" Dec 2"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 1.6 in 7 days None
Feb 1.8 in 5 days None
Mar 2.7 in 8 days None
Apr 2.9 in 10 days 1.4 in Moderate
May 4.6 in 11 days Low
Jun 4.5 in 8 days Low
Jul 3.8 in 9 days 0.5 in Low
Aug 3.6 in 7 days 0.7 in Moderate
Sep 2.8 in 6 days 1.5 in Moderate
Oct 2.3 in 7 days 2 in High
Nov 2.6 in 7 days None
Dec 2 in 9 days None

Annual total: 35.2 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.

Swift County Soil Profile

Soil Type

Silt Loam

Soil pH

6.3-6.7

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 2 → Oct 4 155 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Nov Safe: May 15 Protect by: Oct 14

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 15 Oct 14 152 days
Cautious May 11 Oct 9 151 days
Average year May 2 Oct 4 155 days
Optimistic Apr 27 Sep 28 154 days
Aggressive (risky) Apr 21 Sep 18 150 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±24 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 1.2 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

70 Good
Frost Timing Risk
9.2/10
Drought Risk
3.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.4/10
Climate Shift
4.8/10
Rainfall Challenge
0.0/10

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

Zone 4b Frost Countdown
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Last Frost: May 2 First Frost: Oct 4

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

County Extension Office

Swift County University of Minnesota Extension Extension Office

Phone: 612-625-8173

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 MN →

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 Swift County

Soil testing Cold-climate gardening Pest diagnostics
Finding local nurseries & garden centers in Swift County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Swift 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 Swift County MN" or "garden center Swift 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 Swift County MN" or check your extension office and local parks department. Facebook groups like "Swift County Gardeners" or "Minnesota 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 Green Beans (harvest ends Aug 22) 43 days until frost
After Cauliflower (harvest ends Aug 29) 36 days until frost
After Lettuce (harvest ends Aug 15) 50 days until frost
After Peas (harvest ends Aug 22) 43 days until frost
After Carrots (harvest ends Aug 8) 57 days until frost
After Spinach (harvest ends Aug 8) 57 days until frost

Sunlight & Day Length in Swift County

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

Why it matters: The longest day at Swift County's latitude gets longer the further north you go. Strawberries, garlic, onions all care. The shortest day gets shorter — which limits winter growing for greens without artificial light.

Longest Day

15.4 hours

Summer solstice daylight

Shortest Day

8.6 hours

Winter solstice daylight

Peak Sun Hours

9.4 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 8.9 hr 3.7 hr Short day
February 10.2 hr 4.3 hr Short day
March 11.6 hr 5.8 hr Short day
April 13.3 hr 6.6 hr Neutral
May 14.7 hr 8.9 hr Long day
June 15.4 hr 9.4 hr Long day
July 15.1 hr 9.4 hr Long day
August 13.9 hr 8.7 hr Neutral
September 12.3 hr 7.5 hr Neutral
October 10.7 hr 5.6 hr Short day
November 9.3 hr 3.8 hr Short day
December 8.6 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 Swift County

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

The practical takeaway: Watching soil temperature (not air) is the single biggest upgrade most new gardeners can make. Swift County'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

5 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 16°F 22°F ❄️ Dormant ~36 weeks
Feb 18°F 21°F ❄️ Dormant ~36 weeks
Mar 27°F 28°F ❄️ Dormant ~36 weeks
Apr 39°F 39°F ❄️ Dormant ~36 weeks
May 56°F 50°F ♻️ Active ~14 weeks
Jun 65°F 57°F ♻️ Active ~14 weeks
Jul 72°F 66°F 🔥 Peak ~8 weeks
Aug 73°F 67°F 🔥 Peak ~8 weeks
Sep 63°F 62°F ♻️ Active ~14 weeks
Oct 50°F 54°F 🐢 Slow ~24 weeks
Nov 37°F 42°F ❄️ Dormant ~36 weeks
Dec 22°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 Swift County

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

Why this matters: Pest and disease pressure is the X-factor most beginners under-plan for. Swift 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

5.7 / 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 Low Jun, Jul, Aug
Colorado potato beetle Moderate Jun, Jul
Flea beetles Low May, Jun, Jul
Slugs Low 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 Swift County

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

For new gardeners: Cover crops protect microbial life through winter and summer. Bare soil bakes; covered soil stays cooler, moister, and biologically active. The difference shows up in next year's crops.

Spring Cover Crops (2 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 14 Aug 2 Rapid growth, attracts pollinators, suppresses weeds
White clover Apr 3 Aug 9 ✓ 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 Sep 20 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 24 Apr 18 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 29 Apr 11 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Aug 23 Apr 18 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 13 Apr 18 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 15 Apr 11 Erosion control, weed suppression, good biomass

Wind & Microclimate in Swift County

Why it matters: Wind is the silent water thief. Every breeze pulls moisture from leaves and soil. Swift County's 8.3 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: 14 mph   Summer: 8 mph

Fall: 12 mph   Winter: 11 mph

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

Windbreak Benefit

5.4/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Low

Relatively flat terrain (162 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in Swift County

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

Quick context: Rainwater is unchlorinated, unfluoridated, and at ambient temperature — plants actually prefer it. Swift County's 35" annual rainfall means even a small 50-gallon barrel catches enough for a few weeks of garden watering between storms.

Annual Collection

17,543 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

May, Jun, Jul, Aug

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 35.2 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 17,543 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 Swift County

Soil Type

Silt Loam

Soil pH 6.3–6.7 · Excessively 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. (35.3 in. annual rainfall)

Season Tips

155-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.

Instant PDF download. No spam, unsubscribe any time.

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 Swift County

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

Show all 95 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Mar 21 May 16 May 23 Aug 15 – Sep 19 80–100
Amaranth Feb 28 May 16 May 23 Aug 22 – Oct 10 90–120
Arugula Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Aug 8 30–50
Asparagus May 16 730–1095
Beets Apr 25 Jul 12 Jun 20 – Jul 18 50–70
Belgian Endive Mar 21 Apr 25 May 2 Jul 12 Aug 22 – Sep 26 110–150
Black Beans May 16 Aug 15 – Oct 3 90–120
Bok Choy Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 18 40–60
Broccoli Mar 21 Apr 25 May 2 Jul 12 Jul 4 – Aug 15 60–90
Broccoli Rabe Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 18 40–60
Brussels Sprouts Mar 21 Apr 25 May 2 Jul 12 Aug 1 – Sep 26 90–130
Butternut Squash Mar 21 May 16 May 23 Aug 22 – Sep 26 85–110
Cabbage Mar 21 Apr 25 May 2 Jul 12 Jul 4 – Aug 29 60–100
Carrots Apr 25 Jul 12 Jun 27 – Aug 1 60–80
Cauliflower Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 29 55–100
Celeriac Mar 21 Apr 25 May 2 Jul 12 Aug 15 – Sep 19 100–120
Celery Mar 21 Apr 25 May 2 Jul 12 Jul 25 – Sep 19 80–120
Celtuce Mar 21 Apr 25 May 2 Jul 12 Jul 4 – Aug 15 60–90
Chard Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 15 50–60
Chickpeas Mar 21 Apr 25 May 2 Jul 12 Jul 25 – Sep 5 80–110
Chicory Mar 21 Apr 25 May 2 Jul 12 Jul 4 – Aug 15 60–85
Chinese Cabbage Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Jul 25 50–70
Christmas Lima Beans Feb 28 May 16 May 23 Aug 15 – Sep 19 80–100
Collard Greens Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 29 55–75
Corn May 16 Jul 18 – Sep 12 60–100
Cress Mar 21 Apr 25 May 2 Jul 12 May 16 – Jun 6 14–21
Crookneck Squash Mar 21 May 16 May 23 Jul 11 – Aug 8 45–60
Crosne Apr 25 Jul 12 Sep 26 – Sep 19 150–200
Cucumber Mar 21 May 16 May 23 Jul 18 – Sep 12 50–70
Daikon Apr 25 Jul 12 Jun 20 – Jul 18 50–70
Delicata Squash Mar 21 May 16 May 23 Aug 15 – Sep 19 80–100
Edamame May 16 Aug 1 – Sep 12 75–100
Endive Mar 21 Apr 25 May 2 Jul 12 Jun 20 – Jul 25 45–65
Escarole Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Jul 25 50–70
Fava Beans Mar 21 Apr 25 May 2 Jul 12 Jul 18 – Aug 29 75–100
Fennel Feb 28 May 16 May 23 Jul 25 – Sep 5 60–90
Garlic Aug 23 Nov 22 – Jan 17 90–240
Green Beans May 16 Jul 11 – Sep 5 50–65
Horseradish May 16 Sep 19 – Oct 10 120–180
Hubbard Squash Mar 21 May 16 May 23 Sep 5 – Oct 10 100–120
Kabocha Mar 21 May 16 May 23 Aug 22 – Sep 19 85–100
Kai Lan Mar 21 Apr 25 May 2 Jul 12 Jun 20 – Jul 18 45–60
Kale Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 22 50–70
Kidney Beans May 16 Aug 15 – Sep 19 85–110
Kohlrabi Mar 21 Apr 25 May 2 Jul 12 Jun 20 – Jul 25 45–65
Komatsuna Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Jul 11 35–50
Leeks Mar 21 Apr 25 May 2 Jul 12 Aug 1 – Sep 26 90–150
Lentils Mar 21 Apr 25 May 2 Jul 12 Jul 25 – Sep 5 80–110
Lettuce Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Aug 15 30–60
Lima Beans May 16 Jul 18 – Aug 29 60–90
Mache Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 18 40–60
Melon Mar 21 May 16 May 23 Aug 1 – Sep 19 70–100
Microgreens Mar 21 Apr 25 May 2 Jul 12 May 9 – Jun 6 7–21
Mitsuba Mar 21 Apr 25 Apr 25 Jul 12 Jun 20 – Aug 15 50–70
Mizuna Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Jul 4 30–45
Mustard Greens Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Aug 8 30–50
Napa Cabbage Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 1 55–75
Onion Mar 21 Apr 25 May 2 Jul 12 Aug 1 – Sep 19 90–120
Pac Choi Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 11 40–55
Parsnip Apr 25 Jul 12 Aug 8 – Sep 19 100–130
Patty Pan Squash Mar 21 May 16 May 23 Jul 11 – Aug 8 45–60
Peas Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 22 55–70
Peppers Feb 14 May 16 May 23 Jul 25 – Oct 3 60–90
Pole Beans Feb 28 May 16 May 23 Jul 18 – Sep 12 55–70
Potatoes Feb 28 May 16 May 23 Aug 1 – Oct 10 70–120
Pumpkin Mar 21 May 16 May 23 Aug 22 – Oct 10 85–120
Purslane Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 18 40–60
Radicchio Mar 21 Apr 25 May 2 Jul 12 Jul 4 – Aug 8 60–80
Radish Apr 25 Jul 12 May 23 – Jun 13 22–35
Rhubarb May 30 365–730
Romanesco Mar 21 Apr 25 May 2 Jul 12 Jul 18 – Aug 29 75–100
Rutabaga Apr 25 Jul 12 Jul 18 – Aug 22 80–100
Salsify Apr 25 Jul 12 Aug 8 – Sep 19 100–130
Savoy Cabbage Mar 21 Apr 25 May 2 Jul 12 Jul 11 – Sep 5 70–110
Scallions Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Jul 25 50–70
Scarlet Runner Beans Feb 28 May 16 May 23 Jul 25 – Aug 29 60–80
Shallot Mar 21 Apr 25 May 2 Jul 12 Aug 1 – Sep 19 90–120
Shiso Mar 7 May 9 May 23 Jul 18 – Sep 12 50–70
Snap Peas Feb 28 May 16 May 23 Jul 18 – Sep 12 55–70
Snow Peas Mar 21 Apr 25 May 2 Jul 12 Jun 27 – Aug 22 50–65
Soybeans May 16 Aug 8 – Oct 3 80–120
Spaghetti Squash Mar 21 May 16 May 23 Aug 22 – Sep 19 85–100
Spinach Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Aug 8 35–50
Squash (Summer) Mar 21 May 16 May 23 Jul 11 – Sep 12 45–65
Squash (Winter) Mar 21 May 16 May 23 Aug 15 – Oct 10 80–120
Sunchoke May 16 Sep 5 – Oct 10 110–150
Sweet Corn May 16 Jul 18 – Aug 29 60–90
Tatsoi Mar 21 Apr 25 May 2 Jul 12 Jun 6 – Jul 11 35–50
Tomatillo Feb 28 May 16 May 23 Jul 25 – Oct 3 60–85
Tomatoes Feb 28 May 16 May 23 Jul 25 – Oct 3 60–85
Turnip Apr 25 Jul 12 Jun 6 – Jul 11 40–60
Watercress Mar 21 Apr 25 May 2 Jul 12 Jun 13 – Jul 18 40–60
Watermelon Mar 21 May 16 May 23 Aug 1 – Sep 19 70–100
Wax Beans May 16 Jul 11 – Sep 5 50–65
Zucchini Mar 21 May 16 May 23 Jul 11 – Sep 5 45–60

🍓 Fruits to Grow in Swift County

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

Show all 22 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries May 30 Aug 29 – Oct 24 90–180
Aronia May 30 730–1095
Blueberries May 30 730–1095
Cantaloupe May 30 Aug 8 – Sep 12 70–90
Cranberries May 30 730–1095
Currants May 30 730–1095
Elderberries May 30 730–1095
Goji Berries May 30 730–1095
Gooseberries May 30 730–1095
Grapes May 30 730–1095
Ground Cherry May 30 Aug 8 – Oct 3 65–80
Hardy Kiwi May 30 1095–1825
Haskaps May 30 730–1095
Honeydew May 30 Aug 22 – Oct 3 80–110
Jostaberry May 30 730–1095
Lingonberries May 30 730–1095
Medlar May 30 1095–1825
Mulberries May 30 730–1825
Persimmon May 30 1095–2555
Raspberries May 30 365–730
Serviceberries May 30 730–1095
Strawberries May 30 Aug 29 – Oct 24 90–365

🌿 Herbs to Grow in Swift County

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

Show all 30 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Mar 21 Apr 25 Apr 25 Jul 12 365–730
Anise Mar 21 Apr 25 Apr 25 Jul 12 Jul 25 – Sep 19 90–120
Basil Mar 7 May 9 May 23 Jul 18 – Sep 19 50–75
Bee Balm May 9 Aug 8 – Oct 3 90–120
Borage Mar 21 Apr 25 Apr 25 Jul 12 Jun 20 – Aug 8 50–60
Caraway Mar 21 Apr 25 Apr 25 Jul 12 365–450
Catnip May 9 Jul 11 – Sep 12 60–80
Chamomile Mar 21 Apr 25 Apr 25 Jul 12 Jun 27 – Sep 5 60–90
Chervil Mar 21 Apr 25 Apr 25 Jul 12 Jun 6 – Aug 8 40–60
Chives May 9 Jul 11 – Sep 19 60–90
Cilantro Mar 21 Apr 25 Apr 25 Jul 12 Jun 6 – Aug 8 40–60
Comfrey May 9 Jul 11 – Sep 19 60–90
Dill Mar 21 Apr 25 Apr 25 Jul 12 Jun 6 – Aug 8 40–60
Fennel (herb) Mar 21 Apr 25 Apr 25 Jul 12 Jun 27 – Sep 5 60–90
Garlic Chives May 9 Jul 11 – Sep 19 60–90
Horehound May 9 Jul 25 – Sep 19 75–90
Hyssop May 9 Jul 18 – Sep 19 70–90
Lemon Balm May 9 Jul 11 – Aug 29 60–70
Lovage May 9 Jul 18 – Sep 19 70–90
Mint May 9 Jul 11 – Sep 19 60–90
Oregano May 9 Jul 11 – Sep 19 60–90
Parsley Mar 21 Apr 25 Apr 25 Jul 12 Jun 27 – Aug 29 60–80
Rue May 9 Jul 18 – Sep 19 70–90
Sage May 9 Jul 25 – Sep 19 75–90
Savory May 9 Jul 4 – Aug 29 50–70
Sorrel Mar 21 Apr 25 Apr 25 Jul 12 Jun 6 – Aug 8 40–60
Tarragon May 9 Jul 11 – Sep 19 60–90
Thai Basil Mar 7 May 9 May 23 Jul 18 – Sep 19 50–75
Thyme May 9 Jul 18 – Sep 19 70–90
Valerian May 9 Sep 12 – Oct 3 120–180

🌸 Flowers to Grow in Swift County

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

Show all 49 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 14 May 9 May 9 Jul 4 – Sep 19 60–75
Alliums Aug 23 Sep 27 – Oct 25 28–42
Astilbe Feb 21 May 16 Aug 8 – Oct 3 70–100
Bachelor's Button Mar 14 Apr 18 May 2 Jul 4 – Sep 5 60–90
Begonias Feb 14 May 9 Jul 18 – Sep 26 70–90
Black-eyed Susan Feb 21 May 2 May 16 Aug 8 – Oct 24 60–80
Bleeding Hearts Feb 21 May 16 Jul 11 – Aug 22 60–90
Calendula Mar 14 Apr 18 May 2 Jun 20 – Sep 5 50–70
Celosia Mar 28 May 16 May 16 Jul 18 – Oct 3 60–90
Columbine Feb 21 May 16 May 16 Jul 11 – Aug 29 70–100
Coreopsis Feb 21 May 9 May 16 Aug 1 – Oct 24 60–80
Cosmos Apr 4 May 9 May 9 Jul 18 – Oct 10 60–90
Crocus Aug 23 Jun 28 – Jul 26 10–20
Daffodils Aug 23 Jul 5 – Aug 2 20–40
Dahlias Apr 4 May 16 May 16 Aug 15 – Oct 24 70–120
Daylily Feb 21 May 16 Aug 15 – Oct 24 60–90
Dianthus Feb 28 Apr 11 Apr 25 Jun 13 – Aug 22 60–80
Echinacea (Purple Coneflower) Feb 21 May 16 May 16 Aug 15 – Oct 24 70–90
Foxglove Feb 21 May 16 May 16 Jul 11 – Aug 22 80–120
Gaillardia (Blanket Flower) Mar 7 May 16 May 16 Jul 25 – Oct 31 70–100
Geraniums Feb 14 May 9 Jul 18 – Sep 26 70–100
Gladiolus May 9 May 9 Aug 8 – Oct 17 70–100
Hostas Feb 14 May 16 Aug 15 – Oct 24 60–90
Hyacinths Aug 23 Jul 26 – Aug 16 14–28
Hydrangeas Feb 14 May 16 Aug 8 – Oct 10 90–150
Impatiens Feb 28 May 16 Aug 1 – Oct 3 60–75
Irises Division May 16 Jul 11 – Aug 15 60–100
Larkspur Apr 4 Jun 13 – Aug 1 60–90
Lilies Division May 16 Aug 8 – Oct 10 70–120
Lobelia Feb 21 May 2 Jun 27 – Aug 29 70–80
Lupine Feb 21 May 16 May 16 Jul 11 – Aug 22 75–100
Marigolds Mar 21 May 9 May 9 Jul 4 – Sep 19 50–70
Nasturtium Apr 4 May 9 May 9 Jul 4 – Sep 26 55–65
Pansy Feb 14 May 2 Jun 27 – Aug 15 70–90
Peonies Division May 16 Jul 25 – Aug 29 90–120
Petunia Feb 28 May 9 Jul 18 – Oct 3 70–90
Phlox Feb 21 May 16 May 16 Aug 8 – Oct 17 80–110
Portulaca Mar 28 May 16 May 16 Jul 4 – Sep 19 50–70
Roses Feb 14 May 16 Aug 8 – Oct 24 90–180
Salvia Feb 28 May 9 Jul 18 – Sep 26 70–90
Sedum (Stonecrop) Feb 21 May 16 Sep 19 – Nov 14 60–90
Snapdragon Feb 21 May 2 Jul 11 – Sep 5 70–100
Sunflower Apr 11 May 9 May 9 Aug 1 – Oct 3 70–100
Sweet Alyssum Mar 14 Apr 25 May 2 Jun 13 – Aug 15 45–60
Sweet Pea Mar 21 Mar 28 May 2 Jul 25 – Sep 12 65–85
Tulips Aug 23 Jul 19 – Aug 9 15–30
Vinca (Annual) Feb 14 May 16 Jul 25 – Oct 3 70–90
Yarrow Feb 21 May 2 May 16 Aug 1 – Oct 24 60–90
Zinnia Apr 4 May 9 May 9 Jul 18 – Oct 3 60–70

Monthly Planting Guide for Swift County