noun
zinnia
A flowering plant of the genus Zinnia, known for its bright, long-lasting blooms. The Japanese name literally means 'hundred-day plant', reflecting its long flowering period.
庭に百日草を植えた。
I planted zinnias in the garden.
百日草は夏から秋まで花を咲かせる。
Zinnias bloom from summer to autumn.
From 百日 (hyakunichi, 'one hundred days') + 草 (sō, 'grass, plant'), referring to the plant's long-lasting flowers.