What kind of flower is this? It always blooms.

This is Catharanthus roseus. Scientific name: Catharanthus roseus, Catharanthus roseus of Apocynaceae. Alias marigold, four seasons spring, rising sun, wild goose head red, thirty thousand flowers.

The whole herb can relieve pain, diminish inflammation, sleep, relax bowels and induce diuresis. Nature likes high temperature and high humidity, tolerates semi-shade, and is not cold-resistant. The optimum temperature is 20℃-33℃. It likes sunshine and avoids humidity and waterlogging. Generally, soil can be cultivated, but saline-alkali land is not suitable. Sandy soil with good drainage, ventilation and air permeability or soil rich in humus is better. The flowering and fruiting period is almost all year round.