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When to Plant Bok Choy in St. Francis County, AR

St. Francis County, Arkansas Zone 7b April

This month in St. Francis County, Arkansas

A quick April briefing for St. Francis County, Arkansas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 20
Avg. first frost November 9
Soil temp (4") 57°F
Watering Low
Pest pressure Moderate
Daylight 12.9 hrs
  1. Get bok choy seeds going inside

    You're about 27 weeks out from your last frost — the perfect window to get these germinating indoors.

Coming up in May — start thinking about
  • First harvests: bok choy

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Bok choy is a Chinese cabbage variety with crisp white stalks and dark green leaves. It is a fast-growing cool-season crop ideal for stir-fries and soups.

St. Francis County, Arkansas is in USDA Zone 7b. The average last spring frost is March 20 and the first fall frost is November 9, giving you a growing season of approximately 234 days.

At an elevation of 1,429 feet, St. Francis County receives approximately 51.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Bok Choy during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bok Choy root diseases.

St. Francis County, AR (Zone 7b) Long season
234 days
Last Spring Frost March 20
234 growing days
First Fall Frost November 9
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St. Francis County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (157 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: Apr 23 – May 28
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: May 1 – Jun 5
Safe Start (90%) ✓ Fits season (156 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: May 21 – Jun 25

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 St. Francis County

How your county's soil matches Bok Choy's growing requirements.

Soil pH

Your soil pH (5.5–6.7) overlaps with Bok Choy's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in St. Francis County is excellent for Bok Choy — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Bok Choy.

How to Plant Bok Choy

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 Bok Choy

7
successive plantings in your 234-day season

Sow every 4.6 weeks. Last sowing by Sep 10 to harvest before frost.

For a dedicated fall crop, sow by Aug 31.

Plant Water Budget

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

Monthly Watering Guide for Bok Choy

Bok Choy needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Bok Choy Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 3" 5.4" 0" ✅ Rainfall sufficient
Apr 3" 3.9" 0" ✅ Rainfall sufficient
May 3" 4.3" 0" ✅ Rainfall sufficient
Jun 3" 4.1" 0" ✅ Rainfall sufficient
Jul 3" 5.2" 0" ✅ Rainfall sufficient
Aug 3" 4.5" 0" ✅ Rainfall sufficient
Sep 3" 4.1" 0" ✅ Rainfall sufficient
Oct 3" 2.8" 0.2" 💧 Light watering
Nov 3" 4" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

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

Bok Choy 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.

Bok Choy needs ~800 GDD — county provides 3,744 GDD Excellent fit

Bok Choy Planting Timeline — St. Francis County, AR

Bok Choy Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest May 1 May 1 – Jun 5
Fall Sowing August 31 Aug 31 – Sep 14

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

234 days in St. Francis County

Growing Tips for Bok Choy in St. Francis County

Direct sow Bok Choy outdoors after March 20 in St. Francis County when soil has warmed and frost danger has passed.

Your generous 234.0-day season in St. Francis County allows multiple plantings of Bok Choy. Sow every 20.0 days for continuous harvest.

Common pests for Bok Choy in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall for best results. Keep soil consistently moist. Harvest whole heads or cut outer leaves for a cut-and-come-again approach.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bok Choy in St. Francis County, AR?

St. Francis County is in Zone 7b with an average last frost of March 20. Plan your Bok Choy planting based on this frost date — see the calendar above for exact timing.

What planting zone is St. Francis County, AR?

St. Francis County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 20 and first fall frost is November 9.

🌱

Your St. Francis County Garden Planner — Free

A 24-page printable planner built for St. Francis County (Zone 7b). 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 St. Francis County, AR. Local conditions may vary. Last updated: April 2026.

Sources & credits

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