How to grow potted gerbera?

African chrysanthemum, also known as Fulang flower, marigold flower, Persian flower, etc., are perennial herbs of the genus Compositae, with thicker fibrous roots, terminal inflorescences, large flowers, rich flowers and labor-saving management. they can be supplied year-round in warm areas for arranging flowers and making baskets of flowers, as well as potted plants. Let's take a look at how to grow potted African chrysanthemums.

Growth habits of Gerbera jamesonii

African chrysanthemum originated in South Africa, adapted to mild climate, heat-resistant, slightly cold-resistant, like the environment of warm winter, cool summer, good ventilation and plenty of sunshine. The suitable temperature for growth is 20-25 ℃ in daytime and 16 ℃ at night. The suitable temperature for flowering is not less than 15 ℃, and the annual flowering can be achieved in the growth environment of no more than 26 ℃ during the day. The optimum temperature during winter dormancy was 12-15 ℃, and stopped growing when it was lower than 7 ℃. The sandy loam with loose fertility, good drainage and rich humus, avoid heavy clayey soil, is suitable for slightly acidic soil, and the optimum pH for growth is 6.0-9.0.

Propagation methods of African Chrysanthemum

1. Sowing: African chrysanthemum can usually bear 20 or 30 seeds per flower, which can be sown in spring or autumn, spring in March and May, and autumn in September and October. Gerbera gerbera seeds have a low germination rate, only about 50%. After sowing, they are covered with paper to prevent direct sunlight. The temperature is 20: 25 ℃, germinating in about two weeks. Sixty or seventy days after sowing, flowerpots were transplanted or planted in the open field when the seedlings had three or four true leaves, and flowering could be seen after two or three months of cultivation.

2. Ramet: the propagation of African chrysanthemum is mostly carried out in March and April. First dig out the mother plant, cut into several sub-plants, sub-plant must have buds and roots, and should not be too small, pot should not be too deep, it is best to dig a group of two plants to plant, which is conducive to increase the number of flowers.

How to grow potted gerbera?

1. Soil: gerbera is sensitive to water and should use a medium with good permeability and drainage, preferably a mixture of peat and perlite. The pH value is 5.5 to 6.0 and the EC value is 0.7 to 1.0, which is beneficial to the absorption of trace elements.

2. Watering: African chrysanthemum is very sensitive to water, so it must be watered at the right time, in the morning or evening, and make the plant relatively dry at night. When the plant begins to grow roots, it must be watered from the bottom, which can be infiltrated from the bottom. Water can be watered from above the plant during high temperature, but care should be taken to prevent fungal mildew from the center of the plant.

3. Sunshine: the most suitable sunshine length in the growth process of African chrysanthemum is 11 hours to 13 hours, so artificial light can be replenished in low light, and the general requirement of artificial light is 3500 to 4000 lux per square meter.

4. Temperature: the most suitable temperature for the growth of African chrysanthemum is between 15 ℃ and 25 ℃, the highest is not higher than 30 ℃ and the lowest is not less than 13 ℃. High temperature will affect the normal flower bud differentiation, and low temperature will cause plant death.

5. Fertilization: African chrysanthemum is a fertilizer-loving perennial flower, which has a large demand for fertilizer. the ratio of nitrogen, phosphorus and potassium is 15:18:25, once every 5-6 days and once every 10 days. If the plant is semi-dormant caused by high temperature or low temperature, fertilization will be stopped.

6. Insect pests: the diseases of African chrysanthemum include leaf spot, powdery mildew and virus. Leaf spot disease was sprayed with 70% methyl topiramate wettable powder 800-1000 times or 50% carbendazim wettable powder 500 times. Powdery mildew was controlled with 1500 times of thiophanate methyl or 1000-1200 times of 1000-1200 times of 70% thiophanate methyl, once every 7 days, two to three times in a row.

7. Pruning: the withering and senescence of the lower leaves of Gerbera gerbera basal leaves should be removed in time, which is not only conducive to the germination of new leaves and flower buds, but also conducive to ventilation and enhance plant growth. In addition, if the branches and leaves of the plant are too luxuriant to cover each other, some of the leaves can be removed properly.