What is Hydragea?

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What is Hydragea?

Hydrangea, also known as wood hydrangea, hydrangea, hydrangea, hydrangea viburnum, pink flower. It belongs to the genus of Hydrangea of ​​the Saxifraga family, deciduous shrubs or small trees. The leaves are opposite, ovate to ovate-elliptic, with stellate hairs. Flowering in summer, the flowers form a cyme on the top of the branch, with white neutral flowers on the edge. The flowers are green at first, and then turn white with a delicate fragrance. It is named because of its shape resembling a hydrangea.


It is native to Central China and Southwest my country. Sex likes yin and dampness, afraid of drought and waterlogging. Hydrangea is a common garden flower, its umbels are like snowballs, clustered in oval green leaves, it is really beautiful. Flowers that bloom from summer to autumn. Hydrangea's similar plants. There are scenic spots all over Japan.

Hydrangea Flower Information

  • Scientific name: Hydrangea macrophylla /Viburnum macrocephalum
  • Aliases: Hydrangea, fighting ball, grass hydrangea, purple hydrangea, hydrangea (called hydrangea あじさい in Japan)
  • Place of Origin: Originating in China's Yangtze River Basin, Central and Southwest China, and Japan
  • Family: Hydrangeaceae, Hydrangea
  • Place of Origin: The Yangtze River Valley, Central and Southwest China and Japan are native to China, and the Mediterranean is native to Europe.
  • Family: Loniceraceae, Viburnum
  • Note: Pay attention to the difference between grass hydrangea and wood hydrangea.

Hydrangea Morphological Characteristics

Deciduous shrubs or small trees, 3 meters high. The branches are open and the winter buds are bare. The leaves are opposite, ovate to oval, dark green on the surface, stellate pubescent on the back, and serrated leaf margins. Flowering in summer, the flowers form a large globular cyme on the top of the branch, with white neutral flowers on the edge. Flowering period from April to May, flower diameter 18-20 cm, all infertile flowers. The flowers are green at first, and then turn white with a delicate fragrance. It is named because of its shape resembling a hydrangea.

  • Leaves: Short stalk, opposite, thick, smooth, elliptic or broadly ovoid, with sharp apex
  • Pointy, 10-25 cm long and 5-10 cm wide, with thick serrations on the edges.
  • Flowers: Corymbs are terminal, spherical, densely flowered, white, blue or pink, almost all asexual flowers, each flower has 4 to 5 petaloid calyxes; 4 to 5 petals, small, stamens Within 10, the pistil is extremely degenerate, with 2 to 3 styles. Flowering period: May to July.
  • Toxic parts: the whole plant is toxic
  • Symptoms of poisoning: Ingestion of stems and leaves can cause colic, abdominal pain, diarrhea, vomiting, shortness of breath, blood in the stool, etc. Uses: medicinal, cut flowers, potted plants, garden open field cultivation.

Hydrangea Characteristics

The petal-like sepals look like the petals of a hydrangea, but the flower is in the middle of the sepals.

Hydrangea Related Habits

Sex likes a warm, humid and semi-overcast environment. Afraid of drought and flood, not cold-tolerant. He likes fat, lively, moist, and well-drained light loam, but has strong adaptability.

Hydrangea Distribution Range

Hydrangea is native to China and Japan. Introduced to England in 1736. In Europe, cultivation is more common in the Netherlands, Germany and France, and you can see red, blue, and purple hydrangea varieties in flower shops. Many hydrangeas are planted in small gardens and in front of buildings. At present, Rampp Jungpflanzen (RamppJungpflanzen) is a world-renowned company that produces hydrangea, and it is also the main cultivation and production unit of new hydrangea varieties. Secondly, Men Fanwen Company in the Netherlands and Yager Nursery in Israel are also major producers of hydrangea.


In Asia, Japan is the main source of hydrangea. There are many varieties of hydrangea in gardening shops. You can see many new varieties of strange flowers and colors, which are expensive, and they are all used as home potted plants. At present, the annual output of hydrangeas is 2.7 million pots, with an output value of 17 million U.S. dollars, ranking 12th in the output value of potted flowers in Japan. In the Americas, cultivation is more common in the United States, and there are a certain number of potted and outdoor cultivations. Hydrangea was cultivated earlier in China. Hydrangeas were planted in the gardens in the south of the Yangtze River built during the Ming and Qing dynasties. The parks built in the early 20th century were also inseparable from the planting of hydrangea. Modern parks and scenic spots are planted in patches to form landscapes. However, potted viewing of hydrangea is not very common, which brings excellent opportunities for the development and application of hydrangea.

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