Brassica rapa var. rosularis. A beautiful, easy-to-grow delight, the small, glossy, spoon-shaped, dark-green leaves with white stems grow in a perfect flat rosette. It adds rich colour, mild flavour, and nutrition to salads and stir-fries. Size depends on spacing so thin to 15-30cm apart. Tah Tsai Organic pac choi seeds can be sown spring through fall, and work well in containers. This is a particularly nice vegetable for making the classic Chinese pickled mustard greens. Once pickled, tah tsai offers a crunchy, sour note to offset rich flavours like coconut. This vegetable is often listed as tatsoi, which is simply a variation in phonetic Chinese spelling.
How To Grow, Timing: All are cool season plants that grow quickly and then bolt. Direct sow with frost protection (a cloche or heavy row cover) as early as late winter, or without protection from four weeks before the last frost date to eight weeks after. Sowing short rows every 2-3 weeks allows for a fairly constant harvest time. Sow again in late summer, and provide frost protection as the first frost date approaches.
How To Grow, Starting: Sow 3-4 seeds 5mm-1cm deep in each spot you want a plant to grow. Thin to the strongest plant at a spacing of 15-20cm between plants in rows 30-45cm apart.
How To Grow, Growing: Ideal pH: 6.0-6.8. 1 cup of complete organic fertilizer will provide sufficient nutrition to 3m of row. Choi Sum is harvested just before it flowers, so keep a close watch on each row. Pac Choi can be harvested at any stage, but if you want full-sized plants, watch for signs of bolting. Flower buds will appear at the centre of each plant, and a stem will form quickly as the plant turns from urn-shaped into a tall cone. Harvest as quickly as possible once flower buds are visible. Keep plants well-watered throughout their growth.
How To Grow, Harvest: Use a sharp knife to cut the plants at ground level when they are ready to harvest. They will not grow back like some other crops, so plant several short rows every couple of weeks for a longer harvest.
35 Days.
Approx: 465 Seeds.

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