Many flowers report spring

Dahlia is native to the highlands of Mexico. It is not cold-resistant and afraid of hot heat. It grows and blossoms well in areas with cool summer climate and large temperature difference between day and night. During the growing period, it has strict requirements for water, is not tolerant to drought and avoid stagnant water, and likes the sandy loam rich in humus. Like plenty of sunshine, a little shade when the summer light is strong.

Reproduction: commonly used to split roots, cuttings and sowing propagation. For root-splitting propagation, we should pay attention to the germination point on the old stem with root neck. The survival rate of cuttings was the highest from March to April. Sowing and propagation, pot sowing in spring, seedlings can blossom in the same year.

Cultivation: the ground is planted in early spring, and pillars are set up during the growing period to prevent wind damage. Topping at the seedling stage, promoting branching, and the plant is short and stout and more flowering. Timely watering in summer, topdressing once every ten days, and timely picking of withered flowers during flowering are beneficial to the formation of new flower branches. Cut off the branches and leaves in autumn and winter, dig up the roots, and store them in indoor sand to survive the winter. Potted, select dwarf varieties, strengthen fertilizer and water management at seedling stage, erase lateral buds during bud pregnancy and leave terminal buds, which can have thick stems and large flowers.

Diseases and insect pests: aphids, red spiders, powdery mildew and brown spot often occur in summer. Pay attention to ventilation. It is found that the pests are controlled with 1000 times of dicofol EC, and the diseases are sprayed with 1000 times of topiramine wettable powder.

Application: Dahlia chrysanthemum has a long flowering period and beautiful flowers, such as single peony, star, globular, peony and pulsatilla. There are rich colors, such as red, orange, yellow, white, light red, deep purple, sprinkling gold and so on. Suitable for arranging flower beds, flower borders, potted plants or garden planting, can also be used as cut flowers.