Rosie Asian Green is a striking F1 hybrid pac choi with a vibrant strawberry-red coloring that makes it as beautiful on the plate as it is in the garden. This compact variety matures in just 21 days, making it one of the fastest Asian greens you can grow. It thrives in cool-season conditions and tolerates frost, so you can harvest tender greens from early spring through fall, and even into winter in mild climates or protected structures. The dense, upright growth habit keeps plants tidy in small spaces, while the moderate water needs and pH range of 6.0 to 7.5 make it adaptable to most home gardens.
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Moderate
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Moderate
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Bright strawberry-red coloring sets Rosie apart visually from standard green pac choi varieties, turning it into an ornamental element as much as a culinary one. The 21-day maturity is exceptionally quick, rewarding you with tender greens in three weeks or less. Cold tolerance and frost hardiness open up planting windows most gardeners overlook, allowing spring, summer, fall, and even protected winter harvests in a single growing season.
Rosie shines in fresh applications where its color becomes part of the dish: raw in salads where the ruby leaves add visual drama, in quick stir-fries where the leaves wilt in seconds while retaining their vibrant hue, and in Asian soups where it's added at the last moment. The compact size and tender texture make it ideal for whole-plant harvesting or for repeatedly picking outer leaves throughout the season.
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Start seeds in 128 or 72-cell trays two to four weeks before transplanting. Maintain germination temperatures between 55 and 70 degrees Fahrenheit. Time seed starting so transplants are ready to go into the ground before seedlings become rootbound or stressed, which can trigger premature bolting. In colder zones, this indoor start allows you to get a jump on the season.
Transplant seedlings out before they become rootbound or stressed. Space plants 6 inches apart with 18 inches between rows. Choose a location with full sun and well-draining soil in the pH range of 6.0 to 7.5. In spring, transplant once soil is workable and night temperatures consistently stay above 50 degrees Fahrenheit to prevent cold-induced bolting. Fall transplants should go in early enough to allow three weeks of growth before hard frosts arrive.
Direct sow seeds from early spring through midsummer, planting at the depths and spacing recommended for pac choi. In the South, delay direct sowing until midsummer for fall crops. Thin seedlings to 6 inches apart once they emerge.
Harvest Rosie before flowering, typically at 21 days after sowing. Pick the entire plant when it reaches full size by cutting just above the soil line, or harvest outer leaves continuously once plants establish, allowing the center to continue producing. For the most tender texture and brightest color, harvest in the morning after dew has dried. The compact growth habit makes whole-plant harvesting particularly efficient.
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“Rosie represents modern hybrid breeding focused on color innovation in Asian greens. Developed as an exclusive offering by Johnny's Selected Seeds, this F1 hybrid combines the proven vigor and uniformity of hybrid crosses with the visual appeal of deep red pigmentation. The variety reflects decades of breeding work to enhance both aesthetic qualities and rapid maturity in pac choi, expanding the palette available to home and market gardeners beyond traditional green varieties.”