Seeding propagation of four season primrose

Four season primrose is usually propagated by sowing

Seed sowing method

The seeds of four seasons primrose are best sown immediately after harvest, because the service life of four seasons primrose seeds is not very long, generally no more than 6 months. Or store under dry and low temperature conditions. Sowing with a sowing box or shallow basin, because the seeds of four seasons primrose are small, so it can not be covered with soil after sowing

Seed germination needs light and likes to be wet. Therefore, it is necessary to cover the glass with paper and place it in the semi shade. The suitable temperature for seed germination is 15-20 ℃. Seeds can germinate about 7-16 days after sowing. When the temperature is higher than 25 ℃, the germination rate will decrease significantly. Therefore, sowing in midsummer season should be avoided, or indoor sowing should be adopted

Sowing time of seeds

The sowing time is determined according to their required flowering period. If you want to bloom in winter, you can sow in late spring. Sowing in early autumn can blossom in early spring

Ramet propagation of four season primrose

Four season primrose can also be propagated by ramet method. When the seedlings grow 2-3 true leaves, they shall be transplanted for the first time, and when they grow to 5-6 leaves, they shall be planted or placed in pots. When planting, it should be noted that the planting should not be too deep, and the depth should be appropriate. It is best to bury the root neck in the soil. After the temperature decreases in winter, the base can sprout again. At this time, change the pot for culture

After wintering at room temperature of 10-12 ℃ in winter, flowers can bloom again in the next spring. The seedlings are transplanted separately, then transplanted, and then settled in a larger basin. When planting, the root neck shall not be buried in the soil

Basin soil

Pot soil is usually mixed with rotten leaf soil, garden soil and rice husk ash, and then an appropriate amount of fertilizer is added

Shade

For early sowing seedlings sown in late June, pay attention to shade in summer. There is no shade in winter, but a small amount in spring and autumn

Fertilization

During the growth period, topdressing shall be conducted once every half a month. In winter, the room temperature should be kept at about 12 degrees Celsius, and the flowering period can be entered before and after the Spring Festival. Add icing on the cake to the festival