TomorrowSeeds - 70D Improved Green Yu Choy Sum Seeds - 5000+ Count - For 2026 Planting 70D Improved

70D Improved Yu Choy Sum is an easy-to-grow leafy vegetable commonly used in Chinese cuisine! It has dark green oval shaped leaves on shiny green stalks and bright yellow flowers that are just as sweet and fresh as the stalk, which is a thinner stem than Chinese Broccoli. This southern Chinese staple known as "Choy Sum" is Cantonese Chinese for "heart of the vegetable" and is a favorite in dishes because of its tender stalks and flowers, delicate leaves, and crunchy sweet taste.  70D Improved Yu Choy Sum can grow 7" - 14" plants with thick petioles and is improved to have excellent eating quality, and good heat-tolerance and disease resistance, making it ideal for Spring through Fall planting! Yu Choy Sum is full of phytonutrients and vitamin C making it a healthy addition to any meal.

Also Known As: Hongcai Tai, Hongshan Caitai, Cai-Tai, Green Yu Choy Sam, Green Cabbage Moss, October Moss, Autumn Moss, Hubei Moss, Wuhan Moss, Seaweed Moss, Chinese Cabbage Choi, Cantonese Yu Choy Sum, Kosaitai, Chinese Yellow Flowering Cabbage, Flowering Bok Choy, Cai Xin, Sawi Bunga.

Plant Name: Yu Choy, Green 70D Improved
Latin Name: Brassica rapa subsp. chinensis
Days to Germinate: 6-10
Days to Harvest: 35
Plant Height: 8 - 16 Inches
Spread: 8 - 16 Inches
Growth Habit: Bush
USDA Zones: 2-11
Lifespan: Annual
Brand: TomorrowSeeds
Sunlight: Full Sun, Partial Shade
Pollination: Heirloom, Open-Pollinated
GMO: No
Fungicide-Treated Seeds*: No
Seeds Packed For**: 2026
*Fungicide-treated seeds protect the seedlings from diseases until they are up and growing. Do not eat treated seeds.
**Seeds are freshly packed for the growing season of the year listed. Seeds are still viable beyond pack date. Store in a cool and dry location such as the refrigerator or basement to best preserve germination rates.