Catharanthus roseus can be sown and propagated

Catharanthus roseus can be cultivated by cutting in April to July, but the seedlings produced by cutting are far less healthy and robust than those produced by sowing. Therefore, sowing is usually used for seedling cultivation, and the seeds should be collected as they mature, which can be reserved for planting

How to sow Catharanthus roseus

Sowing time of Catharanthus roseus: it is sown from March to may in spring. The best temperature is between 20 ~ 25 ℃. Generally, it germinates 14 ~ 21 days after sowing. Seedlings can be cultivated in early spring and in warm spring

Changchun flower sowing - soil: peat and perlite are mixed in the proportion of 3:1, or rotten leaf soil can be used. Use fertile, loose and well drained sandy soil or humus soil and barren resistant soil, but do not use saline alkali soil or viscous soil with poor air permeability, which will hinder plant growth, yellow leaves and no flowering. Before cultivation, use 500-600 times of carbendazim liquid for sterilization and place it facing south and the sun

Pay attention to cover the seeds with a thin layer of sand. Don't let the sun directly shine on the seeds. Pour enough water on the Catharanthus roseus with a fine watering can and cover it with a film or straw curtain to keep the soil moist to adapt to the environment required for its germination

Precautions for planting Catharanthus roseus

Catharanthus roseus germinates 14 to 21 days after sowing. The newly grown seedlings cannot be exposed to strong light for a long time. It takes 2-3 hours of shade at noon with high temperature. When the seedling grows to 5cm, three pairs of true leaves can be potted and 6 ~ 8 pairs of true leaves can be planted. Planting flower beds in May, watering once every 3 ~ 5 days and proper fertilization are conducive to the growth of Catharanthus roseus