Blog

When to Plant Chinese Cabbage in Perkins County, SD

Perkins County, South Dakota Zone 4b May

May to-do list for Perkins County, South Dakota

Each item below is timed to Perkins County, South Dakota's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 12
Avg. first frost October 2
Soil temp (4") 53°F
Watering Moderate
Pest pressure Low
Daylight 14.7 hrs
  1. Time to transplant chinese cabbage

    Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.

  2. Plant chinese cabbage from seed, right in the garden

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

A few tasks this May that'll pay off in June
  • Starting indoors: chinese cabbage

Instant PDF download. No spam, unsubscribe any time.

Chinese cabbage (Napa cabbage) forms elongated, barrel-shaped heads with tender, mild-flavored leaves. It is a staple in Asian cooking, particularly for kimchi.

Perkins County, South Dakota is in USDA Zone 4b. The average last spring frost is May 12 and the first fall frost is October 2, giving you a growing season of approximately 143 days.

At an elevation of 1,119 feet, Perkins County receives approximately 28.1 inches of rainfall annually with predominantly loam soil. Summer highs average 81°F, so choose short-season varieties of Chinese Cabbage to ensure they mature before fall.

Perkins County, SD (Zone 4b) Short season
143 days
Last Spring Frost May 12
143 growing days
First Fall Frost October 2

Perkins County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (57 days to spare)
Start indoors: Mar 24 Transplant: May 5 🍅 Harvest: Jun 30 – Jul 28
Recommended (50%) ✓ Fits season (59 days to spare)
Start indoors: Mar 31 Transplant: May 12 🍅 Harvest: Jul 7 – Aug 4
Safe Start (90%) ✓ Fits season (62 days to spare)
Start indoors: Apr 8 Transplant: May 20 🍅 Harvest: Jul 15 – Aug 12

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 Perkins County

How your county's soil matches Chinese Cabbage's growing requirements.

Soil pH

Your soil pH (6.7–7.7) overlaps with Chinese Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Perkins County is excellent for Chinese Cabbage — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.0%) — Chinese Cabbage will thrive.

How to Plant Chinese Cabbage

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 Chinese Cabbage

3
successive plantings in your 143-day season

Sow every 5.7 weeks. Last sowing by Jul 24 to harvest before frost.

For a dedicated fall crop, sow by Jul 10.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,030 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Chinese Cabbage

Chinese Cabbage needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Chinese Cabbage Needs Rainfall You Supplement Action
Jan 2.2" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 2.9" 0" ❄️ Dormant
May 6.5" 3.2" 3.3" 🚿 Regular watering
Jun 6.5" 2.1" 4.4" 🚿 Regular watering
Jul 6.5" 2.7" 3.8" 🚿 Regular watering
Aug 6.5" 3.2" 3.3" 🚿 Regular watering
Sep 6.5" 2.1" 4.4" 🚿 Regular watering
Oct 6.5" 2.1" 4.4" 🚿 Regular watering
Nov 1.9" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

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

Chinese Cabbage 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.

Chinese Cabbage needs ~645 GDD — county provides 1,537 GDD Excellent fit

Chinese Cabbage Planting Timeline — Perkins County, SD

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 31 Mar 31 – Apr 14
Transplant Outdoors May 12 May 12 – May 26
Direct Sow May 5 May 5 – May 26
Harvest July 7 Jul 7 – Aug 4
Fall Sowing July 10 Jul 10 – Jul 24

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

143 days in Perkins County

Growing Tips for Chinese Cabbage in Perkins County

Direct sow Chinese Cabbage outdoors after May 12 in Perkins County when soil has warmed and frost danger has passed.

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

General growing tips

Best grown as a fall crop to avoid bolting. Start seeds indoors or direct sow in late summer. Keep soil consistently moist and provide shade in warm weather.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chinese Cabbage in Perkins County, SD?

Perkins County is in Zone 4b with an average last frost of May 12. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Perkins County, SD?

Perkins County, South Dakota is in USDA Hardiness Zone 4b. The average last spring frost is May 12 and first fall frost is October 2.

🌱

Your Perkins County Garden Planner — Free

A 24-page printable planner built for Perkins County (Zone 4b). 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 Perkins County, SD. 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.