Where is the origin of Platycodon grandiflorum? When will the seeds be sown? How long does it take to sprout?

Platycodon grandiflorum, also known as prairie gentian, Turkish Platycodon grandiflorum, elegant and lively design, unique and lovely flowers, is one of the most popular potted and cut flowers in the world, so where is the origin of Platycodon grandiflorum? When will the seeds be sown? How long does it take to sprout?

Where is the origin of Platycodon grandiflorum?

Platycodon grandiflorum is native to Colorado, Nebraska, Texas and New Mexico. Since the 1970s, Platycodon grandiflorum has become popular in Japan, Korea and other places as a cut flower.

When will Platycodon grandiflorum be sown? How long does it take to sprout?

Platycodon grandiflorum had better be planted indoors from September to October or January to February. The seeds are small, light-loving and do not need to be covered with soil. The optimum temperature for germination was 22-25 ℃, germinated 12-15 days after sowing, seedlings or seedlings were divided in half a month after germination, and the seedlings grew very slowly. It takes 120-140 days from sowing to flowering, and 150-180 days for cut flower varieties. In the seedling market, Platycodon grandiflorum also has a small number of tissue culture seedlings and cutting seedlings.

Third, how to cultivate Platycodon grandiflorum?

The seedlings of Platycodon grandiflorum grow slowly, and the seedlings should not be too deep. When they grow 4-5 true leaves, they are planted in a basin of 10-15 cm. The basin soil is made up of rotten leaf soil, garden soil and a small amount of mature organic fertilizer. In the initial stage of planting, pay attention to keep the soil moist. In the middle stage of growth, the water supply can be gradually reduced to make the flower stem stiff. Fertilizer is applied every half a month during the growing period, and fully mature cake fertilizer and water can be used. If the middle seed is used for pot planting, 0.03% Mel 0.05% vitamin solution is used to spray the plant 2-3 times 20 days after planting. The varieties with strong branching can be picked out to promote more branches and more flowering. High temperature and long sunshine can promote flower bud differentiation and achieve the purpose of early flowering.