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When to Plant Chard in Carroll County, AR

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.

Carroll County, Arkansas is in USDA Zone 6b. The average last spring frost is April 14 and the first fall frost is October 25, giving you a growing season of approximately 194 days.

At an elevation of 1,166 feet, Carroll County receives approximately 53.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Chard during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.

Carroll County, AR (Zone 6b) Moderate season
194 days
Last Spring Frost April 14
194 growing days
First Fall Frost October 25

Carroll County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: May 31 – Jul 19
Recommended (50%) ✓ Fits season (89 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: Jun 9 – Jul 28
Safe Start (90%) ✓ Fits season (91 days to spare)
Start indoors: Mar 23 Transplant: Apr 27 🍅 Harvest: Jun 22 – Aug 10

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 Carroll County

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

Soil pH

Your soil pH (5.5โ€“6.8) overlaps with Chard's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The silt loam soil in Carroll County is excellent for Chard โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Chard.

How to Plant Chard

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Chard

4
successive plantings in your 194-day season

Sow every 5.7 weeks. Last sowing by Aug 26 to harvest before frost.

For a dedicated fall crop, sow by Aug 16.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.2″/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 โ€” 4.3" 0" โ„๏ธ Dormant
Feb โ€” 4.2" 0" โ„๏ธ Dormant
Mar โ€” 5" 0" โ„๏ธ Dormant
Apr 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
May 3.5" 4.6" 0" โœ… Rainfall sufficient
Jun 3.5" 4.8" 0" โœ… Rainfall sufficient
Jul 3.5" 5.5" 0" โœ… Rainfall sufficient
Aug 3.5" 5.7" 0" โœ… Rainfall sufficient
Sep 3.5" 4.6" 0" โœ… Rainfall sufficient
Oct 3.5" 3.2" 0.3" ๐Ÿ’ง Light watering
Nov โ€” 3.9" 0" โ„๏ธ Dormant
Dec โ€” 4.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Carroll County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~880 GDD — county provides 3,104 GDD Excellent fit

Chard Planting Timeline โ€” Carroll County, AR

Chard Planting Calendar

Activity When Date Range
Start Indoors March 10 Mar 10 โ€“ Mar 24
Transplant Outdoors April 14 Apr 14 โ€“ Apr 28
Direct Sow March 31 Mar 31 โ€“ Apr 21
Harvest June 9 Jun 9 โ€“ Jul 28
Fall Sowing August 16 Aug 16 โ€“ Aug 30

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.8"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

50โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 6b

๐Ÿ“† Growing Season

194 days in Carroll County

Growing Tips for Chard in Carroll County

Direct sow Chard outdoors after April 14 in Carroll 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 Carroll County, AR?

Carroll County is in Zone 6b with an average last frost of April 14. Plan your Chard planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Carroll County, AR?

Carroll County, Arkansas is in USDA Hardiness Zone 6b. The average last spring frost is April 14 and first fall frost is October 25.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Carroll County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Carroll County, AR. Local conditions may vary. Last updated: April 2026.