European Primula

Latin name: Primula acaulis

Growth habits:

European primroses are like a cool, moist environment and a well-drained soil rich in humus. They are not tolerant to high temperatures and strong direct light. They are suitable for growing at a temperature of 13 to 18°C ​​and sown to flowering time of 18 to 20 weeks.

humidity:

European Primula is sensitive to moisture and it is important to keep the medium moist and not sticky.

temperature:

European Primroses are susceptible to high temperature hazards, and the temperature should be maintained at 15°C and not lower than 8°C after the pots are kept until the seedlings are released. It should be kept at 7 to 10°C afterwards. After budding, the temperature can be raised to 12 ~ 14 °C.

illumination:

After germination, the temperature should be controlled at 20°C and light is maintained for 14 hours to promote plant growth. In winter and spring seasons, it is necessary to maintain sufficient sunlight, and seedlings need to be shaded in the initial stage of transplanting or the upper basin. When natural lighting is lower than 8000Lx. It is necessary to add light (70Lx/m2). After filling, no artificial light is needed.

Water and fertilizer management:

During the growth process, it is necessary to keep the basin soil moist. Maintain cool temperatures, reduce the amount of water, showering and high temperatures can easily lead to excessive leaf growth. It is not suitable to pour at low temperature, but also to prevent the high temperature and dryness from producing the deformed leaves.

ventilation:

Ventilation in the greenhouse is very important. Ventilation can prevent excessive humidity, adjust the appropriate placement density, otherwise it will affect the normal growth and flowering.

Shade:

Roots should be shaded before they are fully stretched in the basin. Shade nets were used externally for the first two weeks after bowling.

Flower bud differentiation:

The growth temperature below 15°C helps flower bud formation. Early flowering varieties often require weaker varieties. Therefore, early flowering varieties are suitable for use in warm areas, such as “pesetas”. Before the flower buds differentiate, there should be enough leaves to grow, at least the leaves should be covered with potted soil. Without chlormequat treatment, plant shape is mainly achieved through low temperature control.

livespan:

European Primula usually takes about 18 to 20 weeks to flower, which can supply the New Year's Day and Spring Festival markets. Primrose cultivation can be done in the greenhouse in late autumn and early winter, and the temperature is adjusted to 10-15°C. Concerning cultivation, attention should be paid to the fact that the temperature is too high, the leaves are too full, the flowers become smaller and less, and the plants used for flowering should have sufficient size.

Garden application:

It is a best-selling winter potted flower in the world. It is used to decorate indoor or outdoor landscapes, which are blooming and blooming.

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