Pansy is a biennial herbaceous flower that generally blooms in spring and winter. It has a bactericidal effect and can be used medicinally. The cultivation of pansy is not technically demanding, but it also needs to be kept in mind. Please refer to this page for the cultivation of pansy. Method and other knowledge.
Introduction of Pansy
Pansy (scientific name: Viola tricolor L.), a common wildflower in Europe, is also often cultivated in parks. Pansy is suitable for planting in the open air, suitable for flower beds, gardens, and potted plants. It is not suitable for indoor growth. Because of insufficient light, growth will be slow, branches and leaves will not be able to fully thrive, resulting in inability to flower, and should not be moved indoors after flowering to maintain the life of flowers.
Pansy is the original flower of Iceland and is designated as the national flower. But the pansy is still the Polish national flower.
Ecological habits of pansy
It is more resistant to cold and cool, and it develops well under the conditions of 15~25°C and 3～5°C. If the temperature is above 30 °C continuously, the flower buds disappear or no petals are formed. The length of sunshine is much greater than the intensity of light on flowering, with poor sunshine and poor flowering. Hi-fertile, well-drained, organic-rich neutral loam or clay loam. It is a perennial flower and is often cultivated for two years. Known as the "plant cold summer table." When the temperature is above 20 degrees Celsius, the leaves are inclined upwards. At 15 degrees Celsius, the leaves move downward until they are parallel to the ground. At 10 degrees Celsius, the leaves bend downward.
Growth habits: The growth temperature of the pansy is 7-15 °C, the spring temperature is 10 °C during the day, and 4-7 °C in the evening. When the continuous high temperature is above 25 °C, the flower buds disappear and the petals cannot be formed. However, when the temperature is lower than -5 ° C, the leaves are frozen and the edges become yellow. Pansy is suitable for slightly drying during the growth process, and the seedling stage is too wet, such as potting soil or seedbed, and is susceptible to disease. During the vigorous growth of stems and leaves, the soil can be kept slightly moist, but it should not be too wet or accumulated, otherwise, it will affect the normal growth and development of the plants, and even die and die. The flowering period is rainy or hot and humid, the stems and leaves are perishable, the flowering is shortened, and the seed setting rate is low. Pansy is sensitive to light reaction. If the light is sufficient, the sunshine time is long, the three-color stalk leaves grow prosperously, and the flowering is early; if the light is insufficient, the sunshine time is short, the pansy blooms poorly or delays flowering. The soil is preferably loose, fertile and well-drained loam or peat soil.
Reproduction of pansy
Commonly used for sowing, cutting, and ramets. Sowing and breeding: The best in autumn in September, 700 seeds per gram of seed, the germination temperature is 13 ~ 16 ° C, 12 to 15 days after sowing germination, from sowing to flowering takes 100 ~ 110 days. Cutting Propagation: It is carried out from May to June. The branches sprouted at the base of the plant are cut, inserted into the peat, and the air is kept moist. The roots are rooted 15 to 20 days after insertion, and the survival rate is high. Sub-plant propagation: often after flowering, cut the new branch with roots of the adventitious roots or roots, can be directly potted, and restored in the semi-shade.
Disease control of pansy
The pests that harm the pansy are mainly yellow-breasted thrips. It mainly harms the flowers of the pansy with nymphs and adult worms and leaves a grayish-white spot. When the damage is serious, the petals of the pansy will curl and the flowers will wither in advance. The adults and nymphs of the yellow-breasted thrips are generally hidden in the flowers. The females produce the eggs in the epidermis of the stamens or petals. When they are harmed, they use the mouthparts to smash the epidermis of the plants to absorb the juice and often occur in the hot and dry seasons. Control measures: Spray with 2.5% deltamethrin 4000 times or 1500 times of chlorpyrifos, once every 10 days.
Distribution area of pansy
The parks in China are cultivated for viewing. Native to Europe. It is very common in Europe.
to be continued... https://zen.yandex.ru/profile/editor/id/5d7a02d8c31e493cc4208489/5d933e83fc69ab00aea9fa26/edit
