Pac Choi Growing Guide
| Soil Temp for Germ. | Days to Emergence | Seed Depth | Thin Plants To | Seed Spacing | Row Spacing | Min. Germ. | Seed Life | Seeds per 1/4 gram | Fertilizer Needs |
| 45-75°F | 2-15 | 1/4" | 12-18" | 1" | 18-36" | 75% | 3 years | ≈ 63-90 | Medium |
Brassica rapa, Chinensis Group
Days to maturity are calculated from date of direct seeding.
Culture
• Pac Choi is a cool season crop that performs best in spring and fall in a wide range of soil types
• Young plants exposed to temperature fluctuations can result in bolting
• Apply 1 cup of TSC's Complete fertilizer per 5 row feet, and 1 inch of compost
Direct Sowing
• For a spring crop, sow after the danger of frost
• Fall crops can be sown July—mid-August
Transplanting
• Sow seeds 4 weeks before anticipated transplant date for a spring crop or July/August for a fall crop
Insects & Diseases
• Common insects: Flea and cucumber beetles, slugs, earwigs
• Insect control: Pyrethrin or row covers at planting, Cabbage Collars for slugs
• Disease prevention: 5-7 year crop rotation
Harvest & Storage
• Harvest as soon as mature to avoid bolting
• Store at 36°F and 95% relative humidity
KEY TO PAC CHOI DISEASE RESISTANCE AND TOLERANCE
HR indicates high resistance.
IR indicates intermediate resistance.
F | Fusarium Wilt
PB | Clubroot