What is the purple flower tree by the roadside?

Distributed in Sri Lanka, India, Malaysia, Viet Nam, Philippines and China. In China, it is distributed in Guangdong, Guangxi, Fujian and Taiwan Province provinces. Most of them are distributed in low-altitude humid areas and grow in good site conditions, such as along rivers and swamps, but they can also grow in forests on alluvial soil.

Flowers are large and beautiful, and gardens are often cultivated and ornamental; Wood is hard, corrosion-resistant, red and bright, and is often used in furniture, ships, bridges, telephone poles, sleepers and buildings, and also in water. Can be used as street trees, planted near buildings and lawn edges, with good greening and beautification effect.

Cultivation method of Lagerstroemia speciosa

1. Soil: Osmunda japonica has strong vitality, is easy to cultivate, has low requirements on soil, likes to grow in fertile and moist soil, and can also tolerate drought. It grows well in calcareous soil and acidic soil, grows well in slightly wet soil, and grows best when planted in deep and fertile sandy loam.

2. Watering: Osmunda japonica is drought-tolerant and afraid of waterlogging. Water can be watered once a year before germination in spring and after defoliation in autumn. If it is not too dry at ordinary times, there is no need to water it. Generally, water 1 ~ 3 times in spring drought, and drain well in rainy season to prevent water from rotting roots. Autumn is not suitable for watering.

3. Sunshine: Bonsai in Wei Zi likes light and generally grows in an environment with abundant sunshine and good ventilation. In winter, the leeward place in the south can overwinter outdoors, and the north should be moved indoors. Insufficient light will not only make plants spend less or not, but also make plants grow weak and have small branches and leaves. Therefore, it is necessary to place Osmunda japonica in a sunny place outdoors during the growing season.

4. Temperature: Osmunda japonica is not cold-resistant and easy to freeze-dry. If it is serious, it will freeze to death. So move indoors in winter, and keep the room temperature above 7℃. When the temperature is lower than 7℃, methods such as plastic bag insulation, hot water heating and fire heating should be adopted. And pay attention to ventilation. When the indoor temperature is too high, you can open the doors and windows to reduce the amount of water, otherwise it will affect its normal dormancy and even root rot.

5. Fertilization: Osmanthus fragrans is a fertile plant. Lack of fertilizer will lead to weak branches and yellow color, which will lead to weak growth of osmanthus fragrans, with few or no flowers, but excessive fertilization will lead to long branches and leaves. Fertilization can be carried out after the leaves of Osmunda japonica fall in winter and before germination in spring every year. It is best to apply human excrement or sesame sauce residue, which can make Osmunda japonica grow vigorously in the coming year and the flowers are large and bright.