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When to Plant Chard in Conway 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.

Conway County, Arkansas is in USDA Zone 7a. The average last spring frost is April 1 and the first fall frost is October 30, giving you a growing season of approximately 212 days.

At an elevation of 1,174 feet, Conway County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Chard during the growing season.

Conway County, AR (Zone 7a) Long season
212 days
Last Spring Frost April 1
212 growing days
First Fall Frost October 30

Conway County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: May 19 – Jul 7
Recommended (50%) ✓ Fits season (107 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: May 27 – Jul 15
Safe Start (90%) ✓ Fits season (109 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 11 – Jul 30

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 Conway County

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

Soil pH

Your soil pH (5.7โ€“6.5) overlaps with Chard's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). 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

5
successive plantings in your 212-day season

Sow every 5.7 weeks. Last sowing by Aug 31 to harvest before frost.

For a dedicated fall crop, sow by Aug 21.

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 โ€” 4.5" 0" โ„๏ธ Dormant
Feb โ€” 3.8" 0" โ„๏ธ Dormant
Mar โ€” 5" 0" โ„๏ธ Dormant
Apr 3.5" 3.6" 0" โœ… Rainfall sufficient
May 3.5" 4.2" 0" โœ… Rainfall sufficient
Jun 3.5" 4.3" 0" โœ… Rainfall sufficient
Jul 3.5" 5.5" 0" โœ… Rainfall sufficient
Aug 3.5" 4.2" 0" โœ… Rainfall sufficient
Sep 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Oct 3.5" 3.1" 0.4" ๐Ÿ’ง Light watering
Nov โ€” 3.9" 0" โ„๏ธ Dormant
Dec โ€” 4.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Conway 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 ~1,004 GDD — county provides 3,869 GDD Excellent fit

Chard Planting Timeline โ€” Conway County, AR

Chard Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 โ€“ Mar 11
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 18 Mar 18 โ€“ Apr 8
Harvest May 27 May 27 โ€“ Jul 15
Fall Sowing August 21 Aug 21 โ€“ Sep 4

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August Fall Sowing
September Fall Sowing
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 7a

๐Ÿ“† Growing Season

212 days in Conway County

Growing Tips for Chard in Conway County

Direct sow Chard outdoors after April 01 in Conway County when soil has warmed and frost danger has passed.

Summer highs in Conway County reach 91ยฐF โ€” grow Chard as a spring or fall crop. Use shade cloth if planting in summer.

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 Conway County, AR?

Conway County is in Zone 7a with an average last frost of April 1. Plan your Chard planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Conway County, AR?

Conway County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is April 1 and first fall frost is October 30.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Conway County gardeners in Zone 7a 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 Conway County, AR. Local conditions may vary. Last updated: April 2026.