They are perennial plants
a sprinng lilly of the valley
a shizanthus, hedychium coronarium ( butterfly lilly), clitoria ternatea, etc.
Yes Calla (Zantedeschia) is a perennial, but seasonal flower bulb. There are two types of Calla summer and winter flowering; winter flowering are the common white ones (Zantedeschia aethiopica ) while the coloured varieties - red, yellow and pink (Z. pentlandii, Z. rehmanii etc.) are summer flowering
Sacred Animal: Bat Sacred Plants: Grain, spring flowers, lilly of the valley, and pomegranetes
it is perennial
A perennial is a perennial no matter where it is grown.
Perennial
perennial
Perennial
A tender perennial is a perennial plant that is not hardy in cold climates.
Belgium does not have a national flower, foreigners commonly say the poppy and the Lilly-of-the-valley are the Belgian national flowers but that's a misconception. It's not because in Flanders Fields states Flanders poppies, but they are considered weeds, and there is a tradition to give Lilly-of-the-valley's to women in may that that makes these flowers the national flowers.
Perennial