Kai Lan Planting Guide
Kai lan (Chinese broccoli) is a brassica grown for its thick, glossy stems and small flower buds. It has a slightly bitter, broccoli-like flavor essential in Cantonese cooking.
Brassica oleracea var. alboglabra · Vegetable · Brassicaceae family · 45–60 days to maturity
Get Your Personalized Kai Lan Planting Dates
Enter your ZIP code to see exact planting dates, soil compatibility, and growing tips specific to your county.
Where Can You Grow Kai Lan?
Kai Lan Growing Regions
Click any state to see the Kai Lan planting schedule for that location.
Planting Dates by Zone
| Zone | Start Indoors | Direct Sow | Transplant | Harvest |
|---|---|---|---|---|
| Zone 2a | Apr 18 | May 23 | May 30 | Jul 18 – Aug 15 |
| Zone 2b | Apr 10 | May 15 | May 22 | Jul 10 – Aug 7 |
| Zone 3a | Apr 3 | May 8 | May 15 | Jul 3 – Jul 31 |
| Zone 3b | Mar 29 | May 3 | May 10 | Jun 28 – Jul 26 |
| Zone 4a | Mar 25 | Apr 29 | May 6 | Jun 24 – Jul 22 |
| Zone 4b | Mar 20 | Apr 24 | May 1 | Jun 19 – Jul 17 |
| Zone 5a | Mar 21 | Apr 11 | Apr 25 | Jun 13 – Jul 11 |
| Zone 5b | Mar 14 | Apr 4 | Apr 18 | Jun 6 – Jul 4 |
| Zone 6a | Mar 6 | Mar 27 | Apr 10 | May 29 – Jun 26 |
| Zone 6b | Feb 27 | Mar 20 | Apr 3 | May 22 – Jun 19 |
| Zone 7a | Feb 18 | Mar 11 | Mar 25 | May 13 – Jun 10 |
| Zone 7b | Feb 11 | Mar 4 | Mar 18 | May 6 – Jun 3 |
| Zone 8a | Feb 1 | Feb 22 | Mar 8 | Apr 26 – May 24 |
| Zone 8b | Jan 21 | Feb 11 | Feb 25 | Apr 15 – May 13 |
| Zone 9a | Jan 13 | Jan 20 | Feb 10 | Mar 31 – Apr 28 |
| Zone 9b | Dec 28 | Jan 4 | Jan 25 | Mar 15 – Apr 12 |
| Zone 10a | Dec 4 | Dec 11 | Jan 1 | Feb 19 – Mar 19 |
| Zone 10b | Dec 4 | Dec 11 | Jan 1 | Feb 19 – Mar 19 |
| Zone 11a | Dec 4 | Dec 11 | Jan 1 | Feb 19 – Mar 19 |
| Zone 11b | Dec 4 | Dec 11 | Jan 1 | Feb 19 – Mar 19 |
Why are some columns showing "—"?
Transplant shows "—" because Kai Lan is best direct sown where it will grow. Transplanting can disturb the roots and slow growth.
How to Plant Kai Lan
🍂 Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
Water when the top inch of soil feels dry. Consistent moisture produces the best results.
🧪 Soil pH
6 – 7.5
Prefers neutral to slightly acidic soil — ideal for most garden beds.
🗺️ Hardiness Zones
Zone 2a – 11b
📅 Days to Maturity
45–60 days
Quick-growing crop. Multiple plantings per season are possible.
👪 Plant Family
Brassicaceae
Rotate with other families yearly to prevent soil-borne diseases. Don't plant in the same spot where Brassicaceae family crops grew last year.
Succession Planting Kai Lan
Kai Lan matures in just 45–60 days, making it ideal for succession planting. In a typical 180-day growing season, you can get up to 4 successive plantings by sowing every 5.1 weeks.
Your actual succession count depends on your local frost dates. Enter your ZIP code to get personalized succession planting dates for your area.
Companion Planting for Kai Lan
✅ Good Companions
❌ Keep Away From
Check more combinations with our Companion Planting Checker →
Growing Tips for Kai Lan
Direct sow in spring or fall. Harvest when flower buds first appear but before they open. Cut stems at the base to encourage side shoots. Prefers cool weather.
Saving Kai Lan Seeds
Recommended for Your Garden
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Keep your garden organized with durable, weather-resistant plant labels.
Level Up Your Garden
Kai Lan by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
How long does it take to grow Kai Lan?
Kai Lan (Brassica oleracea var. alboglabra) takes 45 to 60 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.
What zones can Kai Lan grow in?
Kai Lan can be grown in USDA zones 2a through 11b. Use the planting calendar above to find the exact dates for your zone.
How much sun does Kai Lan need?
Growing Kai Lan requires Full Sun (6-8+ hours), Moderate — regular watering, and soil pH of 6 to 7.5.