suku-suku
The impression of healthy, steady growth — a tree growing tall and strong, a child growing up healthy, or seedlings shooting upward with vitality.
💡Watching seedlings in a garden — 'The sunflowers are growing suku-suku this summer.'
ひまわりがすくすくと育っている。
The sunflowers are growing suku-suku.
The seedlings ___ grew tall in the warm summer sunshine.
苗が暖かい夏の日差しの中で○○と育った。