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What are the flowers and city trees in Beijing?
The flower in Beijing is the rose, and the city tree is the Sophora japonica.

Chinese rose flowers are beautiful, long in flowering period and rich in flowers and colors, which are well received by people and have the reputation of "the queen of flowers", and Beijing, the capital, has chosen Chinese rose as the city flower, which shows its position in the hearts of China people.

The natural flowering period is from 5 to 1 1 month, and the flowering is continuous. The rose is a very sunny plant. If the light is insufficient, it is difficult to blossom every month, and the sunshine must be long. The place where Chinese rose is planted should be ventilated and get sunshine for more than half a day.

Sophora japonica is tall, its pinnate compound leaves are similar to those of Robinia pseudoacacia. Sophora japonica is edible and can also be used as traditional Chinese medicine or dye.

Planting Sophora japonica should choose loam or sandy loam with flat terrain, good drainage conditions, fertile soil and deep soil layer, which will be stunted in arid saline-alkali land.

Extended data:

Cultivation techniques of rose

Rose is planted in the open field, with developed roots, rapid growth, strong plants and slightly large flowers; The ornamental value is high, and the open cultivation site is selected with high terrain, abundant sunshine, good air circulation and slightly acidic soil.

Chinese rose flowers like light, and there should be enough sunshine in the growing season, with at least 6 hours of light every day; Watering the Chinese rose flowers is very particular. You should be dry and wet, not dry and not watered, but watered thoroughly. Chinese rose flowers are afraid of flooding, and there should be no water in the basin, which is easy to rot the roots.

Main value of Sophora japonica

1, Sophora leaves

Clearing liver and purging fire; Cooling blood and detoxifying; Eliminating dampness and killing insects. Main children with epilepsy; Strong and hot; Intestinal wind; Urinating blood; Hemorrhoids; Eczema; Scabies; Carbuncle, sore and furuncle. ?

2. Sophora branches

Dispelling blood stasis and stopping bleeding; Clearing heat and drying dampness; Expelling wind and killing insects. Main collapse; Under the red and white belt; Hemorrhoids; Scrotum is wet and itchy; Heartache; Eyes red; Scabies

3. Sophora japonica root

Dispelling blood stasis and reducing swelling; Insecticides. Main hemorrhoids; Laryngalgia; Ascariasis ?

4. Sophora japonica (fruit)

Cooling blood to stop bleeding; Clearing liver and improving eyesight. Main hemorrhoid bleeding; Blood under intestinal wind; Blood dysentery; Collapse and leakage; Blood drenching; Blood-heat vomiting; Liver heat with red eyes; Dizziness.

Sowing propagation

1, selection of nursery places

It is advisable to choose loam or sandy loam with flat terrain, good irrigation and drainage conditions, fertile soil and deep soil layer for Sophora japonica seedlings.

2. Seed treatment Before sowing, seed soaking method or sand storage method should be adopted.

(1) Seed soaking method: Soak the seeds with 80℃ water, keep stirring until the water temperature drops below 45℃, leave it for 24 hours, and take out the swollen seeds.

(2) Sand storage method: Generally, the seeds are stored in sand before sowing 10~ 15d. Before sand storage, the seeds are soaked in water for 24 hours, so that the water content of sand reaches 60%, that is, the seeds are held in the hands and dispersed at the touch.

Step 3: sow seeds

Sowing time is generally spring sowing, and Zhuozhou is generally suitable for sowing in the first half of April. Sowing amount per mu 10~ 12kg. Ridge sowing or cropping can be used.

Test data source:

Baidu Encyclopedia-Rose

Baidu Encyclopedia-Sophora japonica