How to raise Torch Flower

Soil

Torch flowers are mostly cultivated in open field or potted. When potting, you should choose the leeward and sunny place. The soil should be ploughed deeply and spread organic fertilizer before planting. Pot cultivation requires sandy loam with deep soil layer, fertile soil and good drainage.

Light

Torch flowers like warm, sunny environment. When potted torch flowers are kept in the shade for a long time, the leaves will yellowing or even wither due to lack of light.

Temperature

Torch flower is more hardy and can survive in winter at a temperature of more than 5 ℃.

Watering

The growth of torch flower needs long-term watering and fertilization, otherwise it will grow slowly. Before entering the autumn ramet, we should apply more base fertilizer and pay attention to supplement the nutrition of the plant to ensure its normal overwintering. In dry areas in winter and spring, water should be watered before freezing to cover plants to prevent frostbite and death.

Fertilizer application

When the torch flower grows into a flower stem, extra-root topdressing of 2-3 potassium dihydrogen phosphate should be carried out at a concentration of 0.1%, once every 1-2 weeks, or 2% calcium superphosphate is used as topdressing in the soil, which can increase the stiffness of the flower stem and prevent the flower stem from bending.

Pruning

The withered flower branches should be cut off as soon as possible after flowering so as not to make them bear fruit, so as not to lead to the gradual loss of nutrients.

Disease

Rust is the main disease of torch flower, which can be controlled by spraying lime-sulfur mixture at the initial stage of rust.

The above is the introduction of how to raise the torch flower. Let's take a look at the ramet propagation of the torch flower.

Maintenance knowledge of how to raise torch flowers

The torch flower is very popular because of its positive meaning, vitality and high ornamental value, but do you know how to raise the torch flower? The following editor will tell you some knowledge about the maintenance of torch flowers.

Torch flower originated in South Africa 1800-3000 meters above sea level and along the coastal infiltration line of rock peat layer, widely cultivated in gardens. The open field in the middle and lower reaches of the Yangtze River can survive the winter.

How to raise torch flowers

1. Soil: torch flower can be cultivated in open field or potted. The planting site should be selected where the terrain is high and dry, leeward and sunny. Before planting, deep ploughing the land and applying some mature organic fertilizer, pot planting requires sandy loam with deep soil layer, fertile soil and good drainage.

2. Sunshine: Catharanthus roseus likes a warm, sunny environment. If potted plants are placed in shade for a long time, the leaves will turn yellow due to lack of light.

3. Temperature: torch flower can be cold-resistant and can be kept at a temperature above 5 ℃ in winter.

4. Watering: if sufficient water supply and fertilization are needed in the growing season, it will grow rapidly. Split the plant in autumn, apply more base fertilizer before planting, supplement the nutrition of the plant, pour water before freezing in the dry areas of winter and spring, and cover the plant with hay or fallen leaves to prevent drying and freezing death.

5. Fertilization: when the flower stem appears, the extra-root topdressing of 2-3 potassium dihydrogen phosphate should be carried out at a concentration of 0.1%, each time at an interval of 7-10 days, or 1% superphosphate of 2% concentration of calcium superphosphate should be used as soil topdressing once, which can increase the stiffness of the flower stem and prevent bending.

6. Pruning: after flowering, the residual flower branches should be cut off as soon as possible so as not to make them bear fruit, so as not to consume nutrients.

7. Insect pests: the torch flower mainly harms leaves and flower stems by rust. At the initial stage of the disease, the disease was prevented and treated with lime-sulfur mixture or 400-fold solution of 25% verapamil EC.

Maintenance knowledge of Torch Flower

Catharanthus roseus likes a warm, sunny environment. If potted plants are placed in shade for a long time, the leaves will turn yellow due to lack of light.

Catharanthus roseus requires loose matrix and good ventilation, such as planting in clayey alkaline soil, resulting in poor root development due to soil consolidation, affecting the growth of aboveground parts and yellowing leaves.

Potted Catharanthus roseus in the growing period, such as insufficient fertilization and too much watering or poor drainage, will cause the leaf color to turn yellow. In view of the above reasons, strengthening maintenance in time can avoid leaf yellowing.

Friends who like torch flowers but do not know how to raise torch flowers, hurry up to cultivate their own torch flowers according to the maintenance knowledge of torch flowers described above.

How to cultivate Torch Flower

The torch flower plant is strong, blossoms from July to August, and the flowers are yellow, orange-red, red and so on. The tall-haired flower stem holds the torch flower-like inflorescence high, magnificent and impressive, suitable for perennial mixed flower border and configuration in front of buildings, and can also be used as cut flowers. Next, let's take a look at how to raise the torch flower with the editor, and introduce the breeding method of the torch flower in detail.

Introduction of Torch Flower

Torch flower, also known as red fire stick, is native to southern Africa. It is more hardy and can survive the winter in the open field in the middle and lower reaches of the Yangtze River. Like plenty of sunshine, but also withstand half-shade. It is suitable to be cultivated in sandy loam with good drainage and deep soil layer.

Torch flower, alias: red fire stick, torch lotus, Latin name: Kniphofia uvaria, Liliaceae, torch lotus perennial herbs. Like warmth, it is suitable to grow in loose and fertile sandy soil. Can be planted in the lawn or planted next to rockery, used as a backdrop. It often appears in some poems as a metaphor for grand and warm scenes!

1. Morphological characteristics

The plant is 80-120 cm tall and the stem is erect. The raceme bears hundreds of tubular florets with a torch-shaped Corolla orange-red with a florescence from June to July. The leaves are linear. Capsule yellowish brown, fruiting in September.

2. Ecological habits

Torch flowers like warm, moist, sunny and sunny environment, but also resistant to semi-shade. Sandy loam with deep, fertile and well-drained soil is required. Appropriate amount of base fertilizer, phosphorus and potassium fertilizer should be applied before planting. After transplanting or ramet, the seedlings should be watered for 2 or 3 times, cut weeds and keep the soil moist in time, and resume growth after about 2 weeks.

How to raise torch flowers

I. cultivation techniques of Torch Flower

1. Ground planting

Sowing and raising seedlings in greenhouse in January, planting in open field in April, and flowering from July to August in summer. Appropriate amount of base fertilizer, phosphorus and potassium fertilizer should be applied before planting. After transplanting or ramet, the seedlings should be watered for 2 or 3 times to weed in time and keep the soil moist.

Strengthen the cultivation management, sowing seedlings or split seedlings can blossom in the second year. When the scape appears, it is necessary to apply 0.1% potassium dihydrogen phosphate external topdressing 2 times, each time at an interval of 7 to 10 days, or with 1% 2% superphosphate fertilizer once, to enhance the stiffness of the scape and prevent bending. Increase irrigation before flowering, and stop watering after the flowers fade. If the flower is bitten by a beetle during flowering, 0.2% omethoate can be sprayed. Torch flower has strong cold tolerance, so open field cultivation should be properly covered with grass to keep warm in order to survive the winter safely.

2. Colonization

The seedling height 10cm should be planted with extra-root topdressing of 2 Mel 3 potassium dihydrogen phosphate, with a concentration of 0.1% at an interval of 7 to 10 days, and should be replanted every 2 to 3 years to promote the growth of new roots and facilitate cultivation.

In the production of cut flowers, the florescence should be prolonged as much as possible, which can be controlled by sowing and transplanting by stages. The natural flowering period of torch flower is from late May to mid-June. If the seedlings sown in the previous year are transplanted and planted in April-June of the second year, they can blossom in September-October.

II. Culture methods of Torch Flower

Torch flower can be cultivated in open field or potted in many rows. The planting site should choose clayey loam with high and dry terrain, leeward and sunny place and rich in humus. Before planting, apply more mature organic fertilizer, increase phosphorus and potassium fertilizer, and then dig deep into the soil. The height of the seedling was fixed around 10cm, and the row spacing was 30cm × 40cm. After planting, the seedlings were watered twice, and then ploughed, loosened soil and squatted seedlings to promote the development of new roots.

If sufficient water supply and topdressing are needed in summer, it will grow rapidly, and under the condition of 25-28 ℃ and sufficient sunshine, it can heading and blossom in about 5 months. When the flower stem appears, the extra-root topdressing of 2 Murray potassium dihydrogen phosphate should be carried out. Each time the interval is 7-10 days, the concentration is 0.1%, or 1%-2% calcium superphosphate is used as soil topdressing, which can increase the stiffness of the flower stem and prevent bending. More basal fertilizer should be applied before dividing and planting in autumn to supplement the lack of nutrition in the plant.

The overwintering ability of torch flower is closely related to the accumulation of nutrients in its body. After flowering, the residual flower branches should be cut off as soon as possible so as not to make it fruiting so as not to consume nutrients. In dry areas in winter and spring, water should be poured through before freezing, and plants should be covered with hay or fallen leaves to prevent drying and freezing death. It is late to remove the cold cover in early spring, so pay attention to the attack of cold in late spring to prevent plant damage.

Torch flower is a shallow root flower with slightly fleshy root system, less root hair, dense and clustered root system, less root hair and lower absorptive capacity, so it must be replanted every 2-3 years. To promote the growth of new roots. The seedlings were watered twice when the seedlings were moved, and the seedlings were squatted under ploughing and loosening soil to promote the development of new roots at 25-28.

Appropriate amount of base fertilizer, phosphorus and potassium fertilizer should be applied before planting. After transplanting or ramet, the seedlings should be watered for 2-3 times, cut weeds and keep the soil moist in time, and resume growth after about 2 weeks. When the scape appears, it is necessary to apply 0.1% potassium dihydrogen phosphate external topdressing 2-3 times, each time at an interval of 7-10 days, or with 1% Murray 2% superphosphate topdressing once, to enhance the stiffness of the scape and prevent bending. Increase irrigation before flowering, and stop watering after the flowers fade.

Third, pot management

1. Lack of light

Catharanthus roseus likes a warm, sunny environment. If potted plants are placed in shade for a long time, the leaves will turn yellow due to lack of light.

2. Poor ventilation of basin soil.

Catharanthus roseus requires loose matrix and good ventilation, such as planting in clayey alkaline soil, resulting in poor root development due to soil consolidation, affecting the growth of aboveground parts and yellowing leaves.

3. Lack of fertilizer and stagnant water or too wet

Potted Catharanthus roseus in the growing period, such as insufficient fertilization and too much watering or poor drainage, will cause the leaf color to turn yellow. In view of the above reasons, strengthening maintenance in time can avoid leaf yellowing.

Fourth, the propagation mode of torch flower.

Common ramet and sowing propagation

Ramets are carried out before the germination of new leaves in March or after flowering in autumn, and whisker roots should be left on each tuber root. Generally speaking, the ramets are divided once every 3-4 years.

Sowing, autumn sowing, 20-25 days after sowing, seedlings need 3 years to blossom.

The sowing time should be in spring and autumn, and the sowing effect in early spring is the best. It can be sowed in the seedling box for easy management. The depth of covering soil is 0.5cm, and the optimum temperature for germination is about 25 ℃. Generally, it can sprout 2-3 weeks after sowing. When the seedlings grow to 5 cm × 10 cm, they can be planted, and the row spacing is 30 cm × 40 cm. Ramet propagation can be used for 4-5-year-old plants, which can be divided in both spring and autumn, usually after anthesis, with the most suitable period in early September. When ramet, cut from the rhizome, each plant should have 2-3 buds, and attach some fibrous roots, respectively, the plant row spacing is 30 cm × 40 cm.

5. Disease control of torch flower

Rust mainly harms leaves and flower stems. At the initial stage of the disease, lime-sulfur mixture or 400-fold solution of 25% verapamil EC is used to control the disease.

If you encounter a beetle bite and eat flowers during flowering, you can spray 0.21% omethoate.

Torch flower has strong cold tolerance, so open field cultivation should be properly covered with grass to keep warm in order to survive the winter safely.