Mountain turtle's osmanthus flower is most beautiful when?

April mid-term ~ May mid-term
The best time to appreciate the flowers of Turtle Hill Mountain’s Rhododendron is from mid-April to early May every year.
Peonies typically bloom in mid-April, around April 21st.
Mid-April to mid-May
The best time to appreciate the azaleas at Turtle Peak Mountain is from mid-April to early May every year.
The flowers generally bloom in the middle of April, around April 21st.