(1) Pot quality requirements: muddy pots, plastic pots, porcelain pots and pottery pots can be used, but muddy pots are the best. In order to coordinate with home decoration, plastic flowerpots with changing colors can be used for cultivation.

(2) flowerpot size: Crab claw orchid should be cultivated in a pot with a crown diameter of 2/3.

2. Pot soil preparation for crab claw orchid culture

Crab claw orchids like fertile and loose soil.

Families can use the following formula: garden soil: humus soil: sand = 3: 4: 3; Peat soil: humus soil: sand: perlite (or volcanic rock) = 4: 2: 2: 2. After the soil is prepared, it is best to sterilize it at high temperature before using it, or it can be exposed to the sun for sterilization.

3. Watering method of crab claw orchid culture

Crab claw orchids like moist soil, and avoid moisture. After leaf buds sprout in spring, the amount of water can be gradually increased to keep the soil moist, and attention should be paid to dry and wet when watering. Spring and autumn are the vigorous seasons for the growth of Crab Claw Orchid. Besides watering, we should also regularly sprinkle water around the plants to increase the air humidity.

When the temperature is high in summer, if the water supply is not enough, the growth of Crab claw orchid will stagnate, so water should be paid attention to in summer, but the pot soil should not be too wet to prevent rot caused by high temperature and humidity. However, attention should be paid to spraying around it several times a day and strengthening ventilation to achieve the purpose of humidification and cooling.

Pay attention to watering the wetland between the dry areas after the temperature gets colder in late autumn. When the temperature is low in winter and early spring, the growth is slow, so the basin soil should be in a dry state.

4. Fertilization method for crab claw orchid culture

Crab claw orchid likes fertilizer, and when fertilizer is sufficient, it has many branches and flowers. Topdressing is started after the leaf buds of Crab Claw Orchid sprout. In the growing season, top dressing can be applied every 1 5-20 days with the same amount of 1000 times of potassium dihydrogen phosphate solution or 1000 times of "flower-rich" general fertilizer1time.

Fertilization frequency should be reduced in late autumn, and fertilization should be stopped when the temperature is lower than 10℃. No fertilizer is applied when the temperature is high in summer and low in winter.

Fertilizing crab claw orchid should be thin and diligent, not thick. When applying fertilizer, apply it slowly along the edge of the pot with a fine nozzle. Don't splash the fertilizer solution on the leaves, otherwise it will burn easily.

5. Light requirements for crab claw orchid culture

Crab claw orchid is afraid of hot and high temperature, avoid exposure and rain, so it should be placed in indoor ventilated place or shady balcony in summer. After beginning of autumn, the crab claw orchid gradually recovered, and should be placed in a place where the light is 50%, such as a shade shed or a sunny window, to receive light and promote flower bud differentiation; As the weather turns cool, the light should be gradually increased, and sufficient light should be given from late autumn to winter.

6. Four seasons management (1) spring management of crab claw orchid culture

Change pots before germination in early spring every year. Young plants change pots every year 1 time, and adult plants change pots every 2-3 years 1 time. Before changing pots, stop watering for 2-3 days, and take off the pots after the pots are dry. Pay attention to handle them gently to prevent them from being broken. Newly planted crab claw orchids are not watered for the time being, only sprayed 2-3 times a day or placed in a place with high humidity, and a small amount of water can be watered after 7 days. After the leaves sprout, water can be increased to keep the soil moist.

After the pot is changed in spring, it should be arranged on the window sill with sufficient sunlight. After the temperature rises, it will start to grow again, and the watering amount can be gradually increased to keep the pot soil moist. When watering, attention should be paid to dry and wet. When the outdoor temperature is stable above 15℃, it can be placed on a balcony with light but no rain. Pay attention to the supply of water and fertilizer in the peak season, but avoid the soil being too wet, and it is advisable to water it after the soil is dry. In rainy weather, the watering frequency should be reduced. The temperature is high in late spring, so we should cover the noon light or move to a semi-light place for culture.

(2) Summer management

Crab claw orchid is not resistant to sunlight, so it should be cultivated on a semi-shady windowsill or balcony in summer, or in a bright room. Maintain adequate water supply. The temperature is cool at the end of summer, so the water supply can be gradually increased and topdressing can be resumed.

(3) Autumn management

Crab claw orchid should be cultivated in a place with morning and evening light in autumn. Water the soil as soon as it dries, and pay attention to spray to supplement the air humidity. Attention should be paid to the supply of water and fertilizer after budding. When the temperature drops to about 10℃, it should be moved into a lighted closed balcony or room in time, and the times of fertilization should be reduced.

Because the flower buds are easy to fall off, care should be taken to prevent them from being knocked off during handling.

(4) Winter management

Crab claw orchid is not cold-tolerant, and the indoor temperature should be kept above 10℃ in winter. Crab claw orchid should be cultivated on a well-lit windowsill or balcony, and should not be watered frequently. When the soil is dry, water it without fertilization.

(5) management of flowering period

After flowering, if the crab claw orchid is moved to the indoor layout with scattered light at 5-8℃, the flowering period can be prolonged, and it is not advisable to water it too much. It is advisable to water it after the soil is dry.

7. Matters needing attention in crab claw orchid culture

(1) Crab claw orchids should be placed in a sunny place indoors after autumn cooling. If there is not enough sunshine in autumn and winter, the formed buds will fall off, and the flowering will be reduced or not.

(2) When the crab claw orchid grows greatly, it is easy to be top-heavy, so it needs to be tied by scaffolding, which can be supported by iron wires and other things. After the flower failure, the residual flowers should be cut off together with the flowering stems at the end, and water control should be paid attention to. After the new buds grow, water can be used to keep the basin soil moist.

(3) The upper basin soil of the grafted seedlings of Crab Claw Orchid can use 3 parts of humus soil, 4 parts of garden soil and 3 parts of river sand, and a small amount of organic fertilizer or bone meal as base fertilizer. Generally, change the basin every 1 ~ 2 years. Changing pots should be done after the defeat of bloom in spring.

(4) In early spring, there is a dormancy period of about 40 days after the flowering of the crab claw orchid. At this time, watering should be controlled, but attention should be paid to loosening the soil and keeping the pot soil dry; When the top begins to sprout new buds, water should be started to keep the soil moist, but water should not be accumulated in the basin to avoid root rot. In the hot summer season, the crab claw orchid is dormant or semi-dormant, so it should be watered less to keep the basin soil semi-wet and avoid rain. After autumn, as the weather turned cold, the crab claw orchid gradually recovered its growth and began to water normally to keep the basin soil moist. In the bud stage, it is advisable to spray water mist frequently to keep the abnormal stems and buds moist and water them to keep the soil moist; After flowering, water should be controlled to prolong the flowering period.

8. Adjustment of flowering period of crab claw orchid culture

Crab claw orchid is a short-day plant, which usually blooms in winter to early spring under natural sunshine environment. In order to make it bloom early, it is necessary to have 8 ~10 hours of sunshine every day, and the rest time is completely dark, and the water treatment is properly controlled. After taking the above measures, it can bloom in 60 ~ 70 days. If you want to bloom on National Day, you can start in the middle and late July, and use a black cloth cover or a black plastic cover to shade the crab claw orchid. It only sees light for 8 hours every day, and cover it with a black cloth cover for the rest of the time, so that it can bloom in late September. During shading treatment, water 1 time every day to keep the basin soil slightly moist and pay attention to ventilation. In order to prolong the flowering period of Crataegus pinnatifida, it should be placed in the environment of 15℃ after flowering. If flowering is to be delayed, the potted plants can be maintained at a low temperature of 5 ~ 8℃, or the light can be extended to 14 hours every day.