Culture methods and matters needing attention of potted dragon spitting beads

Longtuzhu, also known as pearl Baolian, summer and autumn, the terminal white calyx spit out a bright red Corolla, red and white inlaid, shaped like a swimming dragon spitting beads, extremely beautiful, for common potted flowers, mainly used for greenhouse cultivation and ornamental, can be used as flower racks, generally potted plants grow very short due to the restriction of pruning. Distributed in tropical western Africa, Mexico, cultivated in China.

When the Longtuzhu flower is not in bloom, you can enjoy its snow-white calyx like a lantern. Five diamond-shaped calyx are closed to form a mini white carambola. The red bud protrudes from the mouth of the carambola, just like a dragon spitting beads. Then the flowers bloom, and the long stamens inside, like dragon whiskers, wobble on the crimson petals. Even in the dark, it is dazzling.

When Longtuzhu blossoms, the crimson Corolla protrudes from the white calyx, shaped like spitting beads. The flowers are peculiar in shape and bloom luxuriantly, and the flowers are all prismatic calyx composed of bracts, like milky white "carambola". Between the cracks at its tip, they spit out five crimson flowers, which are distributed densely and symmetrically on the leaves, just like spitting one after another the red beads containing the fire of life.

Longtuzhu prefers a warm, moist and sunny semi-shady environment and is not resistant to cold.

[soil]

The soil uses a rich, loose and well-drained sandy loam. Potted soil is cultivated or a mixture of peat soil and coarse sand.

[light]

Longtuzhu needs plenty of light in winter and shade when the summer weather is too hot, otherwise the leaves will turn yellow. When the light is insufficient, it will cause vine growth and do not blossom. Flower bud differentiation is not affected by photoperiod, but strong light can promote flower bud differentiation and development. It should not be kept in the dark for too long. If the temperature is above 21 ℃, the flowers will fall for more than 24 hours.

[watering]

Longtuzhu is sensitive to water, and sufficient water is needed in the growing period. Stems and leaves should keep saline soil moist during the growing period, but the amount of watering should not be excessive, resulting in only long vines without flowering, even leaves yellowing and withering, roots rot and death, if branches wither, stop watering, let them recover, and sprout new leaves. Summer high temperature season should be fully watered and properly shaded. It is necessary to reduce watering in winter and make it dormant in order to survive the winter safely.

[fertilization]

Longtuzhu likes fertilizer, and thin pancake fertilizer can be applied every 7-10 days. More phosphorus and potassium fertilizer can be applied before flowering to make the flowers more colorful. Usually, if some 0.2% ferrous sulfate is properly applied, the leaves can be prevented from yellowing. At the same time, we should pay attention to topping, in order to promote branching and more flowering. Longtuzhu is a climbing plant, in order to maintain its beautiful plant shape, it should be pruned in time to make the plant short and plump, with luxuriant flowers and leaves. Before winter, the plants should be moved into the room for maintenance, and the room temperature should be kept at about 12-15 ℃.

[pruning]

When changing pots every spring, the aboveground branches are trimmed and truncated to make the plant round, with many branches and flowers.

[pest control]

The main diseases are mosaic disease and fungal diseases causing leaf shedding, common rust, gray mold and mosaic virus. The rust was sprayed with 2500 times of 20% verapamil EC, and Botrytis cinerea and mosaic virus were sprayed with 50% carbendazim wettable powder 2500 times. Pests are harmful to leaf beetles, diamondback moths and shell insects, and can be sprayed with 2.5% enemy to kill 3000 times.

Matters needing attention in culture:

1. Longtuzhu is a flowering plant with a long flowering period. it is appropriate to use fertile, well-drained slightly acidic sandy loam, potted dragon spit beads, generally every 1-2 years to change the pot, the time to change the pot can be in early spring or after flower fade. When changing the basin, first use broken tiles to cover the drainage hole, and then put a small amount of bone powder as base fertilizer, then load the new culture soil (4 parts of rotten soil, 4 parts of garden soil, 2 parts of sandy soil), plant good plants, and leave 2-3 cm along the mouth for fertilization and watering. After changing the basin, pour through the water, put the seedlings slowly in the shade, and then move to the sunny place for maintenance.

2. Longtuzhu should not apply too much fertilizer. Mature thin cake fertilizer and water should be applied every 7-10 days in flowering season, and fertilizer should be applied 3-4 times in succession. If yellowing is found in the process of cultivation, it can be combined with topdressing and 0.2% ferrous sulfate, which can gradually change the leaves from yellow to green. Fertilize once a month, the dragon spits the pearl blossom season, apply 1-2 more phosphorus and potassium fertilizer, or use "Huiyou" 20 Mel 8 mi 20 with high potassium nitrate fertilizer for four seasons. In winter, watering is reduced and fertilization is stopped.

3. Potted dragon beads are often used in 12-15 cm pots, and 3 plants can be planted in each pot. Sufficient water is needed during the growing period, such as excessive soil moisture, which will cause the leaves to turn yellow and fall off. If the branches do not wither, stop watering and let them recover and sprout new leaves.

4. To shape the beautiful plant type of dragon spitting beads, when the cuttage or sowing seedlings grow to 15 cm after pot planting, cut branches 10 cm away from the pot mouth to promote the germination of sturdy new branches. During the growing period, we should strictly control the height of the branches and pay attention to topping and picking the heart, so that the branches will be neat and blossom in the future. Half a month after picking the heart, Bijiu or Daizhuangsu was applied to control the plant height so that the plant was short, leafy and flowered.

Time: 2019-06-01 Click: