F1, heat tolerant, vigorous, upright plant habit, fresh green outer leaves, yellow-green interior, glossy leaves, good quality, excellent marketability. Growing well in wide range of climates. Ready for harvest 25 days after sowing in summer and fall.

F1, upright plant habit, quite vigorous in low temperature, yellow-green outer leaves and yellowish interior, relatively early head formation, excellent quality, high-yielding, disease resistant, relatively late bolting, a best choice for fall and spring sowing. (not suitable for sowing in hot seasons)

F1, vigorous, light green outer leaves and yellow-green interior, succulent, heat and humidity tolerant, upright plant habit, broad and white petioles, leaves relatively flat and not hairy, good marketability, excellent quality, also suitable for baby plants.

F1, heat tolerant, disease resistant, vigorous, upright plant habit, flat leaves in relatively green color, succulent, humidity tolerant, easy to grow, ideal variety for summer sowing. Can also be grown for its edible stem as it's early bolting and uniform.