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Bicolor lespedeza is a perennial semi-woody legume native to Japan. Allowed to grow naturally, it can reach a height of 8 to 10 feet with 1/2 inch diameter stems. If cut back, stems will grow 4 to 6 feet tall. The abundant trifoliate oval leaves are usually 1.5 inches long and 1 inch wide. The pink to purple colored flowers of ‘Natob’ appear first in late June to early July and continue for 4-6 weeks. The outstanding quality of ‘Natob’ is that the seed matures at least a month earlier than common bicolor lespedeza. Bees and insects are necessary to adequately pollinate lespedezas. The small, black, bean-like, seeds are singlely produced in pods which open when mature. Seed maturity occurs from late September to early October. Some plants hold seed into the winter but most seeds fall by January. Approximately 300 to 500 pounds of seed is produced per acre. There are about 72,000 seeds per pound.