F1 Hybrid
Polar Bear
Type: Highly dome shaped
Maturity: 90 days after transplanting
Average weight per curd: 1500-2500g
Optimal growth temperature: 10-25℃
Cold tolerance during head formation: -8℃ to 0℃
Disease resistance: Highly resistant to black spot disease, soft rot, and sclerotinia rot
Distinctive features: Upright plant structure, thick waxy outer leaves, tender yellow inner leaves fully shield curd, especially cold-tolerant.