20 seeds per packet. A rarely offered, clump forming, perennial species in the Valerianaceae family from China where it inhabits grassy slopes and open woods. Grown for its striking, rusty red foliage and clouds of long-flowering, dense, yellow umbels. A fantastic plant for insects. Flowers July to September. Height 40 cm. Sun to part shade in moist, well-drained soil. Warm germinator.