Chinese broccoli, also called Chinese kale or gai lan, is widely used in Asian cuisine. The buds, stems, and leaves are blue green in color, juicy and delicious, ever so slightly bitter. This vegetable is not only delicious, it is very nutritious as well. A cool season crop, it will tolerate early summer heat better than kale or broccoli. Start seeds a few weeks before your last frost by direct seeding. Start harvesting in 60 days, and continue harvesting side shoots. Direct sow a fall crop in late July/early August.