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When to Plant Pac Choi in Nevada County, CA

Nevada County, California Zone 7b April

This month in Nevada County, California

April rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Nevada County, California.

Avg. last frost May 10
Avg. first frost October 22
Soil temp (4") 49°F
Watering Moderate
Pest pressure Moderate
Daylight 13 hrs
  1. Direct-sow pac choi

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

A few tasks this April that'll pay off in May
  • Transplants going out: pac choi

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Pac choi (baby bok choy) is a compact variety of Chinese cabbage with tender leaves and crisp stems. It grows quickly and is ideal for containers and small spaces.

Nevada County, California is in USDA Zone 7b. The average last spring frost is May 10 and the first fall frost is October 22, giving you a growing season of approximately 165 days.

At an elevation of 2,745 feet, Nevada County receives approximately 44.7 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Pac Choi to ensure they mature before fall.

Nevada County, CA (Zone 7b) Moderate season
165 days
Last Spring Frost May 10
165 growing days
First Fall Frost October 22
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Nevada County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Start indoors: Mar 21 Transplant: Apr 25 🍅 Harvest: Jun 6 – Jul 4
Recommended (50%) ✓ Fits season (95 days to spare)
Start indoors: Apr 5 Transplant: May 10 🍅 Harvest: Jun 21 – Jul 19
Safe Start (90%) ✓ Fits season (103 days to spare)
Start indoors: May 1 Transplant: Jun 5 🍅 Harvest: Jul 17 – Aug 14

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 Nevada County

How your county's soil matches Pac Choi's growing requirements.

Soil pH

Your soil pH (6.8–7.5) is within Pac Choi's preferred range (6.0–7.5).

Soil Texture

The loam soil in Nevada County is excellent for Pac Choi — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Pac Choi is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Pac Choi.

How to Plant Pac Choi

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 Pac Choi

4
successive plantings in your 165-day season

Sow every 4.6 weeks. Last sowing by Aug 28 to harvest before frost.

For a dedicated fall crop, sow by Aug 13.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,431 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Pac Choi

Pac Choi 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 Pac Choi Needs Rainfall You Supplement Action
Jan 9.9" 0" ❄️ Dormant
Feb 8.7" 0" ❄️ Dormant
Mar 7.9" 0" ❄️ Dormant
Apr 3" 0" ❄️ Dormant
May 6.5" 1.3" 5.2" 🚿 Regular watering
Jun 6.5" 0.2" 6.3" 🚿 Regular watering
Jul 6.5" 0" 6.5" 🚿 Regular watering
Aug 6.5" 0" 6.5" 🚿 Regular watering
Sep 6.5" 0.4" 6.1" 🚿 Regular watering
Oct 6.5" 1.9" 4.6" 🚿 Regular watering
Nov 4.6" 0" ❄️ Dormant
Dec 6.8" 0" ❄️ Dormant

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

Pac Choi 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.

Pac Choi needs ~582 GDD — county provides 2,021 GDD Excellent fit

Pac Choi Planting Timeline — Nevada County, CA

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors April 5 Apr 5 – Apr 19
Transplant Outdoors May 10 May 10 – May 24
Direct Sow April 26 Apr 26 – May 17
Harvest June 21 Jun 21 – Jul 19
Fall Sowing August 13 Aug 13 – Aug 27

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

40–55 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

165 days in Nevada County

Growing Tips for Pac Choi in Nevada County

Direct sow Pac Choi outdoors after May 10 in Nevada County when soil has warmed and frost danger has passed.

Your generous 165.0-day season in Nevada County allows multiple plantings of Pac Choi. Sow every 20.0 days for continuous harvest.

Common pests for Pac Choi 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. Grows best in cool weather. Space 6 inches apart for baby pac choi. Harvest whole plants or cut outer leaves as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pac Choi in Nevada County, CA?

Nevada County is in Zone 7b with an average last frost of May 10. Plan your Pac Choi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nevada County, CA?

Nevada County, California is in USDA Hardiness Zone 7b. The average last spring frost is May 10 and first fall frost is October 22.

🌱

Your Nevada County Garden Planner — Free

A 24-page printable planner built for Nevada 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 Nevada County, CA. 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.