Points for attention in planting dahlias

1. avoid exposure

Depending on the propagation method, the planting time varies. Sub-root propagation is best in spring in March and April, cuttage can be in June to August, hotbed sowing in late March.

During this period, be sure to pay attention to sun protection, especially after heavy rain, too strong may burn dahlia flowers and leaves.

2. timely drainage

Summer rain more, will often appear waterlogging situation, dahlia is not waterlogging tolerance so must be timely drainage, otherwise easy to rot roots.

3. timely ventilation and heat dissipation

Summer temperature is high, if more than the appropriate temperature dahlia should be timely ventilation heat dissipation.

After learning about Dahlia cultivation, is it more curious about Dahlia and how it reproduces? Let's get to know it together!

Dahlia planting methods and precautions how to plant dahlia?

Dahlias are perennial herbs with large rod-shaped root tubers. Stems erect, much branched, 1.5-2 m tall, stout. Leaves 1-3-pinnately divided, upper leaves sometimes undivided, lobes ovate or oblong-ovate, below grayish green, glabrous on both surfaces. Head large, long pedunculate, often pendulous, 6-12 cm wide. involucral bracts outer ca. 5, ovate-elliptic, foliaceous, inner membranous, elliptic-lanceolate. Lingulate flowers 1-layered, white, red, or purple, often ovate, apically inconspicuously 3-toothed, or entire; tubular flowers yellow, sometimes all lingulate in cultivated species. Achenes oblong, 9-12 mm long, 3-4 mm wide, black, flattened, with 2 inconspicuous teeth. Flowering 6-12 months, fruiting 9-10 months. Today, Xiaobian will take you to understand the cultivation method of dahlia.

1. Soil

Dahlia is most suitable for growth in loose fertile, well-drained sandy loam, need rotation, moderate fertility requirements, pH 6.7 -7.8 can grow well.

2. Sunlight

Dahlia likes light but does not tolerate shade. If placed in shade for a long time, it grows poorly, its roots are weak, its leaves are thin and its stems are thin, its flowers are small and pale, and some cannot bloom. Therefore, potted dahlias should be kept in a sunny place. Leaf growth period needs to have sufficient light, daily light requirements in more than 6 hours, so that plants thrive, flowers large and plump. If the sunshine is less than 4 hours per day, the branching of stems and leaves and the formation of flower seedlings will be affected to some extent, especially if the rain is less than 4 hours, the flowering will not be smooth, the growth of stems and leaves will be poor, and the disease will be easy.

3. Temperature

Sexual preference cool climate, ecological factors of the requirements are not strict, so adaptability is strong. During the growth period, the temperature requirements are not strict, and normal growth can be achieved between 5-35℃, but the most suitable temperature is 10-25℃.

4. Watering

The amount of watering can control the height of dahlia plants. Water should be controlled at seedling stage to promote dwarfing. In summer, in order to reduce the temperature, increase the air humidity and reduce the evaporation of water from dahlia stems and leaves, water should be sprayed 1~2 times a day. Watering once at 3~4 p.m., the amount of watering should not be too large.

5. Fertilization

Dahlia love fertilizer, growth period 7~10 days should be applied topdressing 1 time, or thin liquid fertilizer 2 1 3 times. However, because dahlias are afraid of heat, they are often in a semi-dormant state in summer. At this stage, no fertilizer or extremely thin fertilizer can be applied. After budding, phosphorus application can be increased to make flowers bloom better. Dahlia roots more delicate, throughout the growth process are taboo fertilizer.

6. Insect pests

Dahlia generally mainly appears powdery mildew, gray mold, bacterial wilt, virus disease, moth and other pest problems, to be regularly sprayed with chemicals for treatment.

7, pruning

Dahlias cultivated for medium and small flowers by removing only the lateral buds from the lower nodes of the stem so that they bloom one after another. If you want to cultivate a large single flower, should only retain the top bud, the rest of the lateral buds removed. At the end of June and the beginning of July, after the first flower, the weather is getting hotter and the plant growth slows down. At this time, pruning can be carried out. When pruning should first be in the middle of the branches, the middle of the two leaves will be twisted and drooping stems, leaving a height of 20~30 cm. After a few days, the wound partially dried and then cut. This prevents rainwater from pouring into the hollow stem and causing decay. In October, it will bloom again.

Dahlia is a common flower in flower beds, courtyards, etc. It can adapt to different climates, simple and easy to live, diverse colors, very attractive, short varieties of dahlia can also be planted in potted plants to decorate the home environment. About dahlia cultivation method introduced here today, welcome to continue to pay attention to fleshy flower beds, learn more about dahlia conservation methods.

Dahlia growth habits, its planting methods and precautions

Dahlia, alias Dali flower, dahlia, sweet potato flower, compositae, dahlia plants, perennial herbs, there are huge rod-shaped root tuber. Stem erect, much branched, stout. Dahlia is one of the most diverse species of flowers in the world. It is a symbol of blessing. Many people will choose to plant it in places such as home courtyard balcony. Let's take a look at the cultivation method of dahlia.

growth habit

Requirements for lighting conditions

Dahlia likes semi-shade, too strong sunlight affects flowering, light time is generally 10~12 hours, cultivate seedlings to avoid direct sunlight.

Requirements for temperature conditions

Dahlias like cool climate, late September flowering the largest, most Yan, Sheng, but not resistant to frost, frost immediately withered stems and leaves. During the growth period, the temperature requirement is not strict, 8~35℃ can grow, 15~25℃ is appropriate.

water requirements for

Dahlia is not resistant to drought, waterlogging, general potted see dry soil is watered thoroughly, do see wet see dry; more rainy days can pour basin drainage (do not often water).

Requirements for soil

Dahlia is suitable for cultivation in loose, well-drained fertile sandy soil.

Dahlia planting method

1. Soil: Dahlia is most suitable for growing in loose, fertile, well-drained sandy loam, requiring rotation, moderate fertility requirements, and pH 6.7 -7.8.

2. Sunshine: Dahlia likes light and is not tolerant of shade. If it is placed in shade for a long time, it will grow poorly, its roots will be weak, its leaves will be thin and its stems will be thin, its flowers will be small and pale, and some will not bloom. Therefore, potted dahlias should be kept in a sunny place. Leaf growth period needs to have sufficient light, daily light requirements in more than 6 hours, so that plants thrive, flowers large and plump. If the sunshine is less than 4 hours per day, the branching of stems and leaves and the formation of flower seedlings will be affected to some extent, especially if the rain is less than 4 hours, the flowering will not be smooth, the growth of stems and leaves will be poor, and the disease will be easy.

3, temperature: sexual likes cool climate, the requirements for ecological factors are not strict, so adaptability is strong. During the growth period, the temperature requirements are not strict, and normal growth can be achieved between 5-35℃, but the most suitable temperature is 10-25℃.

4. Watering: The amount of watering can control the height of dahlia plants. Water should be controlled at seedling stage to promote dwarfing. In summer, in order to reduce the temperature, increase the air humidity and reduce the evaporation of water from dahlia stems and leaves, water should be sprayed 1~2 times a day. Watering once at 3~4 p.m., the amount of watering should not be too large.

5, fertilization: Dahlia love fertilizer, growth period 7~10 days should be applied topdressing once, or thin liquid fertilizer 2 to 3 times. However, because dahlias are afraid of heat, they are often in a semi-dormant state in summer. At this stage, no fertilizer or extremely thin fertilizer can be applied. After budding, phosphorus application can be increased to make flowers bloom better. Dahlia roots more delicate, throughout the growth process are taboo fertilizer.

6, pest: Dahlia generally mainly appear powdery mildew, gray mold, bacterial wilt, virus disease, moth and other pest problems, to regularly spray chemicals for treatment.

7, pruning: cultivation of small and medium-sized flowers dahlia, only remove the lateral buds on the lower part of the stem, so that they bloom one after another. If you want to cultivate a large single flower, should only retain the top bud, the rest of the lateral buds removed. At the end of June and the beginning of July, after the first flower, the weather is getting hotter and the plant growth slows down. At this time, pruning can be carried out. When pruning should first be in the middle of the branches, the middle of the two leaves will be twisted and drooping stems, leaving a height of 20~30 cm. After a few days, the wound partially dried and then cut. This prevents rainwater from pouring into the hollow stem and causing decay. In October, it will bloom again.

The above is all I know about dahlia today, I hope that flower friends will be helpful after reading this article, if you want to know more about dahlia related knowledge, please continue to pay attention to the fleshy garden, we will provide you with more relevant knowledge!