The growth environment and cultivation methods of royal poinciana

The growth environment of the royal poinciana

Poinciana grows in tropical and warm subtropical regions around the world.

It has been introduced and cultivated in Taiwan, Hainan, Fujian, Guangdong, Guangxi, Yunnan and other provinces and regions in China.

In the United States, the Poinciana tree can be found in Florida, the Rio Grande Valley in southern Texas, desert areas of Arizona and California, Hawaii, Puerto Rico, the U.S. Virgin Islands, and Guam.

The Poinciana tree also grows widely in the Caribbean region.

Growth habits of royal poinciana

The Delonix regia has strong germination ability and grows rapidly. Generally, the height of a one-year-old plant can reach 1.5-2 meters, and the height of a two-year-old plant can reach 3-4 meters. It will begin to bloom 6-8 years after planting.

In southern China, winter buds sprout in early February every year, with a growth peak from April to July. The growth rate decreases in late July due to high temperatures. After mid-to-late August, the temperature drops and the growth accelerates. After October, the growth slows down, and the leaves fall from December to January of the following year.

How to grow royal poinciana

Delonix regia is mainly propagated by sowing, which is done in spring in April and May. The seeds are hard and must first be soaked in 90°C hot water for 5-10 minutes or in warm water for a day. The germination rate is relatively high and they can sprout a week after sowing.

Delonix regia is a tropical tree species. It starts to bloom 6 to 8 years after planting. It prefers a high temperature, humid and sunny environment. The suitable growth temperature is 20-30°C. It is not cold-resistant and the winter temperature should not be lower than 5°C.

Fertile, organic-rich sandy loam is preferred. It is afraid of waterlogging and requires good drainage. It is more resistant to drought and barren soil. It has shallow roots, but a well-developed root system and strong wind resistance. Fight against air pollution.

Fertilization should be applied once before budding and before flowering in spring. Broken branches and leaves should be cleaned up in time during the typhoon season. Pests and diseases such as leaf spot disease and noctuid larvae must be prevented and treated symptomatically.