1、 Breeding method

1. Soil: perennial flowers are suitable to grow in acidic soil. Loose soil and well drained environment are beneficial to its development. High soil viscosity will lead to rotten roots and fallen leaves. Rotten leaf soil, garden soil and river sand can be configured according to 2:2:1, and a small amount of bone powder can be added as base fertilizer

2. Light: perennial flowers should be given sufficient light all year round. However, proper shade should be provided in summer to avoid exposure to strong light, otherwise it will lead to yellow leaves and fallen leaves. If the light is insufficient, the plant will be thin, the leaves will be too thin, and the number of flowers will be greatly reduced

3. Temperature: the suitable temperature for long-lived flowers is 20-25 ℃. Too high or too low temperature will stop growth. It needs to be kept above 12 ℃ in winter, otherwise it will cause the edge of leaves to turn red and delay the flowering time

4. Watering: the perennial flower itself has good drought resistance. Generally, water can be poured once every 2-3 days, and the amount of water should not be too much. Under high temperature, water can be poured once a day in the evening, and less in winter

5. Fertilization: apply thin liquid fertilizer to the perennial flowers every 2-3 weeks. In addition, to increase the application of phosphorus fertilizer after the emergence of flower buds can increase the number of flowers and prolong the flowering period

2、 Reproductive skills

1. Cutting: cutting is a breeding method with high survival of long-lived flowers, which is generally carried out in spring or late summer. Cut about 5cm succulent stems, insert them on the seedbed, water the bacteria, cover them with a film to keep warm, take root in about two weeks, and transplant and cultivate them after a month

2. Sowing: similar varieties need to be selected for artificial pollination. After seed collection, seed shall be sown in spring or autumn, and the mixture of rotten leaf soil, garden soil and humus soil shall be selected as the matrix. Sow seeds on the soil surface, then cover it with fine soil, and then wrap it with film to keep warm. The film can be uncovered once every morning and evening to make it breathable. Generally, new buds can grow within two weeks

3、 Pest control

The main diseases are powdery mildew and leaf blight, which can be controlled with zineb solution. Insect pests are scale insects and aphids, which will damage leaves and young shoots and be sprayed with dimethoate emulsion solution