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When to Plant Chard in Kanabec County, MN

Kanabec County, Minnesota Zone 4a May

Your May game plan for Kanabec County, Minnesota

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Kanabec County, Minnesota.

Avg. last frost May 3
Avg. first frost October 1
Soil temp (4") 51°F
Watering Moderate
Pest pressure Low
Daylight 14.7 hrs
  1. Set out chard seedlings

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

Get ahead of June
  • Starting indoors: chard
  • First harvests: chard

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Swiss chard is a colorful, heat-tolerant green with large crinkled leaves and vibrant stalks in red, yellow, and white. Both the leaves and stems are edible and nutritious.

Kanabec County, Minnesota is in USDA Zone 4a. The average last spring frost is May 3 and the first fall frost is October 1, giving you a growing season of approximately 151 days.

At an elevation of 1,316 feet, Kanabec County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Chard to ensure they mature before fall.

Kanabec County, MN (Zone 4a) Moderate season
151 days
Last Spring Frost May 3
151 growing days
First Fall Frost October 1

Kanabec County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (43 days to spare)
Start indoors: Mar 17 Transplant: Apr 28 🍅 Harvest: Jun 23 – Aug 11
Recommended (50%) ✓ Fits season (46 days to spare)
Start indoors: Mar 22 Transplant: May 3 🍅 Harvest: Jun 28 – Aug 16
Safe Start (90%) ✓ Fits season (44 days to spare)
Start indoors: Apr 7 Transplant: May 19 🍅 Harvest: Jul 14 – Sep 1

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Kanabec County

How your county's soil matches Chard's growing requirements.

Soil pH

Your soil pH (5.8–7.3) overlaps with Chard's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Kanabec County is excellent for Chard — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (5.0%) — Chard will thrive.

How to Plant Chard

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Succession Planting Chard

3
successive plantings in your 151-day season

Sow every 5.7 weeks. Last sowing by Aug 02 to harvest before frost.

For a dedicated fall crop, sow by Jul 09.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Chard

Chard needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Chard Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 2.8" 0" ❄️ Dormant
Apr 4" 0" ❄️ Dormant
May 3.5" 3.6" 0" ✅ Rainfall sufficient
Jun 3.5" 4.2" 0" ✅ Rainfall sufficient
Jul 3.5" 4.2" 0" ✅ Rainfall sufficient
Aug 3.5" 3.8" 0" ✅ Rainfall sufficient
Sep 3.5" 3.2" 0.3" 💧 Light watering
Oct 3.5" 2.7" 0.8" 💧 Light watering
Nov 2.6" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Kanabec County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Chard Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Chard needs ~632 GDD — county provides 1,736 GDD Excellent fit

Chard Planting Timeline — Kanabec County, MN

Chard Planting Calendar

Activity When Date Range
Start Indoors March 22 Mar 22 – Apr 5
Transplant Outdoors May 3 May 3 – May 17
Direct Sow April 26 Apr 26 – May 17
Harvest June 28 Jun 28 – Aug 16
Fall Sowing July 9 Jul 9 – Jul 23

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Fall Sowing Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 4a

📆 Growing Season

151 days in Kanabec County

Growing Tips for Chard in Kanabec County

Direct sow Chard outdoors after May 03 in Kanabec County when soil has warmed and frost danger has passed.

General growing tips

Direct sow or transplant after last frost. Harvest outer leaves regularly to encourage continuous production. Chard tolerates both heat and light frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Corn
  • Cucumbers

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chard in Kanabec County, MN?

Kanabec County is in Zone 4a with an average last frost of May 3. Plan your Chard planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kanabec County, MN?

Kanabec County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 3 and first fall frost is October 1.

🌱

Your Kanabec County Garden Planner — Free

A 24-page printable planner built for Kanabec County (Zone 4a). 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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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Kanabec County, MN. Local conditions may vary. Last updated: May 2026.

Sources & credits

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