What are the cultivation methods for hydrangea? Understand it all in one article

The hydrangea is adorably cute. Its flower head is made up of countless small four-petaled florets clustered into an umbel shape, also like a ball. The red hydrangea closely resembles an embroidered ball, hence the name. Because of this lovely appearance and its ease of growing, the hydrangea is loved by everyone and grown as a potted plant. What are the cultivation methods for hydrangea?

   The hydrangea originates from the provinces south of the Yangtze River in China. It is a plant that likes warm, humid environments and fears the blazing sun most of all. Spring, summer and autumn are the hydrangea's growing season, and keeping the soil in the pot moist is best. To prevent root rot, pay attention to drainage and do not let water accumulate. As for fertilizing, apply fertilizer once a week, and avoid the blazing sun in summer. The most suitable place for the plant to grow is in a shady spot. When the air is dry, spray water appropriately, which benefits growth and also cleans the dust off the leaves. The color of the hydrangea depends on the degree of soil acidity and alkalinity. When the pH value is 6-7, the flower color is red. When the pH is around 5.5, the flower color is blue.

   The hydrangea is a short-day plant. Placing it in darkness for more than 10 hours a day, flower buds can form in about 6 weeks. When forcing flowers for cultivation, after 6 to 8 weeks of low-temperature treatment at 5°C to 7°C, place the plant in an environment of around 20°C, then when flower buds appear lower it to 16°C, and it can bloom in about two weeks.

   When the hydrangea grows too vigorously, you should prune and thin the branches or pinch off the growing tips in time, so as to control the growth and maintain an ideal, perfect appearance. It also encourages the plant to bloom more. After the flowers fade, shorten the branches to promote new branch growth. When the new branches grow to 8 cm to 10 cm, they can be shortened again, so that the lateral buds become plump and full, which is good for blooming the following year. In winter, water sparingly, and it can overwinter safely above 5°C. Every spring, replace the potting soil once. The potting soil is required to be rich in humus, loose and well-draining, and growing in such soil is enough. There are no excessive requirements, which is very convenient.

   For the propagation method of hydrangea, you can choose cuttings, using young branches in early summer. The cuttings should have 2-3 nodes, with the lower leaves removed and the upper leaves also cut in half. The purpose of this is to prevent water evaporation and increase the survival rate. After planting, place them in a semi-shady spot and keep them humid, so they root easily. You can also propagate by air layering during the growing season, or by division before sprouting in spring.

How to grow hydrangea? What are the cultivation methods for hydrangea?

Hydrangea is a common garden flower. Its umbel-shaped inflorescence is like piled-up snowballs, clustered among the oval green leaves, truly beautiful. The flowering period of hydrangea is June to July, with a flower diameter of 18 to 20 cm, all being sterile flowers. The flowers are greenish when they first open, then turn white, with a delicate fragrance. Because its form resembles an embroidered ball, it gets its name. It is an important flowering shrub commonly seen in summer, with extremely high ornamental value and benefits. So, what are the cultivation methods for hydrangea?

I. A brief introduction to hydrangea

Chinese name: hydrangea

Scientific name: Hydrangeamacrophylla

Other names: eight immortals flower, ziyang flower, seven changes, foreign hydrangea, pink pom-pom flower

Family: Saxifragaceae

Genus: Hydrangea

Origin and distribution: native to the Sichuan area of China and Japan

Morphological characteristics: deciduous shrub or small tree, with opposite leaves, ovate to ovate-elliptic, dark green on the surface, blooming in summer, with flowers clustered at the branch tips into large spherical corymbs, with white neutral flowers at the edges. Flowering period April to May, flower diameter 18 to 20 cm, all being sterile flowers. The flowers are greenish when they first open, then turn white, with a delicate fragrance. Because its form resembles an embroidered ball, it gets its name.

Deciduous shrub or small tree, 3 m tall. Branches are spreading, winter buds exposed. Leaves opposite, ovate to ovate-elliptic, dark green on the surface, covered with stellate pubescence on the back, with serrated leaf margins. Blooming in summer, with flowers clustered at the branch tips into large spherical corymbs, with white neutral flowers at the edges. Flowering period April to May, flower diameter 18 to 20 cm, all being sterile flowers. The flowers are greenish when they first open, then turn white, with a delicate fragrance. Because its form resembles an embroidered ball, it gets its name.

II. How to grow hydrangea

The hydrangea likes warm, humid and semi-shady environments. It fears both drought and waterlogging, is not cold-tolerant, and likes fertile, loose, well-draining light loam, but it has strong adaptability. Therefore, soil that is loose, fertile and well-draining sandy loam is best. The acidity and alkalinity of the soil have a relatively large influence on the flower color of the hydrangea. In acidic soil it is mostly blue, and in alkaline soil it is mostly red. The potting soil should be kept moist, but watering should not be excessive, especially in the rainy season when drainage must be paid attention to, to prevent waterlogging from causing root rot. In winter, indoor potted plants are better kept slightly dry. Replace the pot once every spring, prune appropriately, and keep the plant shape graceful.

If you want to grow hydrangea well, you must pay attention to the temperature and light of the surrounding environment. The hydrangea can only grow normally between 15 and 27 degrees, so in winter try to move it indoors to a bright, sunny spot for growing, and the lowest room temperature must not be below 5 degrees, otherwise the hydrangea will freeze to death or stop growing. In summer, focus on cooling and shading work, so the leaves are not scorched. Overly strong sunlight will only cause the leaves to change color or even drop.

III. Cultivation methods for hydrangea

1. Soil: For planting hydrangea, loose, fertile and well-draining sandy loam is best. But the flower color is affected by soil acidity and alkalinity: in acidic soil the flowers are blue, in alkaline soil the flowers are red.

2. Watering: The potting soil for planting hydrangea should be kept moist, but watering should not be excessive, especially in the rainy season when drainage must be paid attention to, to prevent waterlogging from causing root rot. In winter, indoor potted plants are better kept slightly dry. If too damp, the leaves rot easily.

3. Light: The hydrangea is a short-day plant. In normal cultivation, avoid blazing sun exposure, and 60%-70% shading is most ideal. When the light is too strong in midsummer, appropriate shading can prolong the flower-viewing period.

4. Temperature: The suitable growth temperature for hydrangea is 18-28°C, and the winter temperature should not be below 5°C. Flower bud differentiation requires 6-8 weeks at 5-7°C. A temperature of 20°C can promote flowering, and after flowers appear, maintaining 16°C can prolong the flower-viewing period. Note that high temperatures make the flowers fade quickly.

5. Fertilizing: The flowering period of hydrangea is June to July. During the flowering period, fertilizer and water should be sufficient, fertilizing once every half month.

6. Pruning: After the hydrangea blooms, pay attention to removing the flower stems to promote the production of new branches. Appropriate pruning can keep the plant shape graceful.

7. Pests and diseases: Hydrangea mainly suffers from wilt disease, powdery mildew and leaf spot disease. Spray 65% zineb wettable powder at 600 times dilution for prevention and control. Pests include aphids and mirid bugs, which can be killed by spraying 40% omethoate emulsifiable concentrate at 1500 times dilution.

That is all for the introduction to the cultivation methods of hydrangea. I hope that after reading this article everyone can master how to grow hydrangea. However, hydrangea is toxic, so be sure never to eat it by mistake, especially children, who are prone to playful curiosity. Therefore, planting it outdoors is best.

The above is the relevant introduction in this article. I believe that after reading it you also have a simple understanding of this. If needed, you can continue to follow Yihao Home Network to learn more information.

Is hydrangea toxic? Cultivation methods for hydrangea

Many people like hydrangea very much. It is rich in color, pleasing to the eye, and has high ornamental value. Is hydrangea toxic? Below, let's talk about the cultivation methods for hydrangea.

Is hydrangea toxic?

Hydrangea, also known as eight immortals flower, ziyang flower, seven changes, foreign hydrangea, pink pom-pom flower, is native to the Sichuan area of China and Japan. It is a deciduous shrub of the genus Hydrangea (scientific name: Hydrangea) in the family Saxifragaceae. Its flowers are almost entirely sterile flowers; the so-called "flowers" are merely sepals.

China cultivated the eight immortals flower relatively early. In the Jiangnan gardens built during the Ming and Qing dynasties, hydrangea was planted. Parks built in the early 20th century also could not do without hydrangea plantings. Modern parks and scenic areas plant them in large patches to form landscapes. Artificially cultivated hydrangeas have large flowers and bright colors, with colors including blue, white, purplish red, pink, peach red and so on. It is a common ornamental flowering shrub.

Hydrangea is a common garden flower. Its umbel-shaped inflorescence is like snowballs, clustered among the oval green leaves, very nice-looking. The entire hydrangea plant is toxic, and it has no particular smell itself. Eating it by mistake can cause poisoning symptoms such as colic, abdominal pain, diarrhea, rapid breathing, vomiting, and blood in the stool. So it is best not to place it indoors, and even more so, do not covet the beauty of the hydrangea and want to pick it to play with. Especially for families with small children, it is best to plant hydrangea outdoors. If it is a potted hydrangea, it is suitable to place it on a ventilated balcony or terrace, avoiding children's contact.

Hydrangea can easily cause allergies or skin itching in people, so it is best not to place it in the bedroom. Placing hydrangea reasonably allows you both to appreciate the beauty of the hydrangea and to ensure safety.

Cultivation methods for hydrangea:

(1) Temperature and light should be moderate: add warmth and keep warm in winter, cool down and shade in summer. If you want to grow hydrangea well, you must pay attention to the temperature and light of the surrounding environment. The hydrangea can only grow normally between 15 and 27 degrees, so in winter try to move it indoors to a bright, sunny spot for growing, and the lowest room temperature must not be below 5 degrees, otherwise the hydrangea will freeze to death or stop growing. In summer, focus on cooling and shading work, so the leaves are not scorched. Overly strong sunlight will only cause the leaves to change color or even drop.

(2) Watering and fertilizing should be appropriate: water and fertilize more during bud formation, water less and do not fertilize during the dormant period. Normally when watering hydrangea, you only need to keep the soil surface moist. In summer, you can use spraying to lower the temperature around the leaf surface. In winter, water as little as possible, half wet and half dry is fine. During the bud formation period, water more, at least 2 times a day, and fertilizing work should also be in place. During the bud formation period, apply a thin fertilizer to the hydrangea every ten days. You can add a little ferrous sulfate to the thin fertilizer to make alum fertilizer water, or you can spray some liquid fertilizer on the leaf surface every half month. Doing this can promote the flower buds to bloom. During the dormant period, do not fertilize anymore; let the hydrangea get sufficient rest.

(3) Be ruthless with weeding and pruning: weed thoroughly, and when pruning, pinch off growing tips and remove diseased and dead branches. The growing environment of hydrangea should be kept hygienic at all times. Weeds around it that compete for nutrients should be removed promptly as soon as they poke out. Never show mercy or let any slip through the net. Generally speaking, to make the plant shape more beautiful, when there are too many new leaves it is necessary to pinch off the growing tips. Also pay attention to pruning some leggy branches and overly dense branches. In addition, after the flowers have bloomed, the diseased branches and residual leaves are also our main pruning targets. These miscellaneous branches should all be removed in time to avoid competing with the main branches for nutrients.

The growing environment for hydrangea:

The suitable growth temperature for hydrangea is 18-28°C, and the winter temperature should not be below 5°C. Flower bud differentiation requires 6-8 weeks at 5-7°C. A temperature of 20°C can promote flowering, and after flowers appear, maintaining 16°C can prolong the flower-viewing period. But high temperatures make the flowers fade quickly.

The potting soil should be kept moist, but watering should not be excessive, especially in the rainy season when drainage must be paid attention to, to prevent waterlogging from causing root rot. In winter, indoor potted plants are better kept slightly dry. If too dry or too damp, the leaves rot easily.

The hydrangea is a short-day plant. With darkness treatment of more than 10 hours a day, flower buds form in about 45-50 days. In normal cultivation, avoid blazing sun exposure, and 60%-70% shading is most ideal.

Soil that is loose, fertile and well-draining sandy loam is best. But changes in soil pH cause relatively large changes in the flower color of hydrangea. To deepen the blue, you can apply aluminum sulfate during the bud formation period. To maintain pink, you can apply lime to the soil.