The Thai people regard its yellow hue as the colour of Buddhism and the colour of glory. Ratchaphruek blooms annually from February to May and symbolises the unity and harmony of the Thai people. While the flowers are blossoming, the tree sheds its leaves, leaving only bright yellow flowers hanging on its branches. The Ratchaphruek is widely known in Thailand and is grown in abundance along the roadsides.
Southeast Asia’s National Flowers
--ASEAN Sec, Pisanu