。
She stopped picking daisies.
Literal
She [topic-は] daisies [object-を] picking stopped.
雛菊 (ひなぎく) means 'daisy' — literally 雛 (chick/small) + 菊 (chrysanthemum). 摘む (つむ) means 'to pick/pluck' (flowers). やめた means 'stopped doing' — she ceased the activity. The sentence has a quiet, pastoral quality.