When to Plant Pac Choi in USDA Zone 2a
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.
In Zone 2a, the average last spring frost is around May 30 and the first fall frost is around September 1, giving you a growing season of approximately 94 days.
Pac Choi Planting Timeline — Zone 2a
Where Is USDA Zone 2a?
The map below highlights the states that contain Zone 2a. Click any state to see the Pac Choi planting schedule for that location.
Pac Choi Planting Calendar — Zone 2a
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 18 | Apr 18 – May 2 |
| Transplant Outdoors | May 30 | May 30 – Jun 13 |
| Direct Sow | May 23 | May 23 – Jun 13 |
| Fall Sowing | June 9 | Jun 9 – Jun 23 |
| Harvest | July 11 | Jul 11 – Aug 8 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow Fall Sowing |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Free Zone 2a Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 2a with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
High — keep soil consistently moist
Days to Maturity
40–55 days
Soil pH
6 – 7.5
Zone Temperature Range
-50°F to -45°F average annual minimum
Growing Season
94 days (Zone 2a average)
Planting Specifications
| Planting Depth | 1 inches |
| Plant Spacing | 15 inches apart |
| Row Spacing | 24 inches between rows |
Growing Tips for Zone 2a
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
Level Up Your Garden
Saving Pac Choi Seeds
Recommended for Your Garden
Full-spectrum LED lights for starting seeds indoors when daylight is limited.
Warm soil for faster germination of heat-loving crops like tomatoes and peppers.
Protect plants from frost, wind, and pests while letting light and water through.
Related Plants
Pac Choi in Other Zones
Pac Choi by State
- Alabama
- Alaska
- Alberta
- Arizona
- Arkansas
- British Columbia
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Manitoba
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Brunswick
- New Hampshire
- New Jersey
- New Mexico
- New York
- Newfoundland and Labrador
- North Carolina
- North Dakota
- Northwest Territories
- Nova Scotia
- Nunavut
- Ohio
- Oklahoma
- Ontario
- Oregon
- Pennsylvania
- Prince Edward Island
- Quebec
- Rhode Island
- Saskatchewan
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- Yukon
Frequently Asked Questions
When should I plant Pac Choi in Zone 2a?
In Zone 2a, plan your Pac Choi planting around the average last frost date of May 30. Start seeds indoors around April 18. Direct sow outdoors around May 23. Transplant seedlings around May 30.
Can Pac Choi grow in Zone 2a?
Yes, Pac Choi can grow well in Zone 2a, hardy in USDA zones 2a through 11b. Zone 2a has a growing season of approximately 94 days, which is sufficient for Pac Choi (40-55 days to maturity).
When can I harvest Pac Choi in Zone 2a?
In Zone 2a, expect to harvest Pac Choi from July 11 – August 8. Pac Choi takes 40-55 days from planting to harvest.
What is the last frost date for Zone 2a?
The average last spring frost in Zone 2a is around May 30, and the first fall frost is around September 1. This gives a growing season of approximately 94 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Pac Choi?
Good companion plants for Pac Choi include Celery, Lettuce, Onion. These companions can help with pest control, pollination, and nutrient sharing.
Plan Your Garden with Confidence
Get our free Garden Planner — organize your planting dates for Zone 2a, track your crops, and plan your garden season from seed to harvest.
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