Platycodon grandiflora (Hawaii). Perennial native seeds herbaceous plant with a long flowering period. Height 40-50 cm. Flowers are large, pentapetal, blue, pink and white colored. Achieves better development in open, sunny areas, but easily withstands penumbra. The soil should be light, well-drained, fertile. Dry-resistant, winter-hardy crop. Seedlings are sown in March. Seeds are lightly pressed into the soil without being sprinkled with soil. Cover the planting tank with film or glass and put on a lighted, warm place (20-22 ° C). Watering is moderate. Sprouting appears in 15-20 days. In the phase of 2-3 leaves of seedlings dive one into the pot. At a constant place seedlings are planted when the threat of frosts passes, at a distance of 25-30 cm. Seeds are sown in the open ground in late May - early June or autumn. Requires the garter of the stem. Very effectively looks on flowerbeds, balconies, used for cutting.