Tangerine Orange Freesia The name Freesia derives from botanist Christian P Ecklon who named the delicate bloom after his fellow botanist Friedrich HT Freese as a commemoration of their friendship. Considered to symbolise friendship, trust and innocence, it has become one of the most popular flowers in the world. Popular as a wedding flower since the 1950s, freesias are said to represent the trust between a couple and are considered the official flower for a seventh wedding anniversary.