New! Specialty Greens. Organic Tat Soi. 45 Days. This more refined relative of bok choy makes a many-leafed rosette of small, elegantly spoon-shaped leaves on crisp and succulent stems. Cut mature plant to harvest as a bunch, or pick leaf-by-leaf for extended season. Or harvest at 25 days for baby greens. Use flower buds like mini-broccoli florets. Use in salads, soups, and stir-fries, on sandwiches, etc. Mature height to 12-16”; space 12-18” apart. Plants are frost-hardy but best development occurs in mild, frost-free conditions. 20,000 seeds/oz.