Blog

When to Plant Bok Choy in Jewell County, KS

Jewell County, Kansas Zone 6a May

What to do in May

Welcome to May in Zone 6a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 19
Avg. first frost October 15
Soil temp (4") 57°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Indoor seed-starting week for bok choy

    These need a head start before your last frost (April 19). Sow into cells now so you're ready to transplant in a few weeks.

  2. Basket week: bok choy

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June will be here before you know it — start on
  • First harvests: bok choy

Instant PDF download. No spam, unsubscribe any time.

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.

Jewell County, Kansas is in USDA Zone 6a. The average last spring frost is April 19 and the first fall frost is October 15, giving you a growing season of approximately 179 days.

At an elevation of 551 feet, Jewell County receives approximately 24.6 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Bok Choy to ensure they mature before fall.

Jewell County, KS (Zone 6a) Moderate season
179 days
Last Spring Frost April 19
179 growing days
First Fall Frost October 15

Jewell County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (103 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 25 – Jun 29
Recommended (50%) ✓ Fits season (102 days to spare)
Start indoors: Mar 15 Transplant: Apr 19 🍅 Harvest: May 31 – Jul 5
Safe Start (90%) ✓ Fits season (101 days to spare)
Start indoors: Mar 28 Transplant: May 2 🍅 Harvest: Jun 13 – Jul 18

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 Jewell County

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

Soil pH

Your soil pH (6.2–7.5) is within Bok Choy's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.1%) — Bok Choy will thrive.

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

5
successive plantings in your 179-day season

Sow every 4.6 weeks. Last sowing by Aug 16 to harvest before frost.

For a dedicated fall crop, sow by Aug 06.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.6″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 235 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 0.6" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 3" 2.8" 0.2" 💧 Light watering
May 3" 3.3" 0" ✅ Rainfall sufficient
Jun 3" 4.3" 0" ✅ Rainfall sufficient
Jul 3" 2.8" 0.2" 💧 Light watering
Aug 3" 2.8" 0.2" 💧 Light watering
Sep 3" 2.7" 0.3" 💧 Light watering
Oct 3" 1.7" 1.3" 💧 Light watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Jewell 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 ~650 GDD — county provides 2,327 GDD Excellent fit

Bok Choy Planting Timeline — Jewell County, KS

Bok Choy Planting Calendar

Activity When Date Range
Start Indoors March 15 Mar 15 – Mar 29
Transplant Outdoors April 19 Apr 19 – May 3
Direct Sow April 5 Apr 5 – Apr 26
Harvest May 31 May 31 – Jul 5
Fall Sowing August 6 Aug 6 – Aug 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Only during dry spells

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

179 days in Jewell County

Growing Tips for Bok Choy in Jewell County

Direct sow Bok Choy outdoors after April 19 in Jewell County when soil has warmed and frost danger has passed.

Your generous 179.0-day season in Jewell 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 Jewell County, KS?

Jewell County is in Zone 6a with an average last frost of April 19. Plan your Bok Choy planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jewell County, KS?

Jewell County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 19 and first fall frost is October 15.

🌱

Your Jewell County Garden Planner — Free

A 24-page printable planner built for Jewell County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

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