In Empresses in the Palace, which episode is Zhen Xuan praising peony?

In Episode 25, the Queen designed Fu Cha's nobles to skate, and invited six concubines to gather in Ren Jing Palace to enjoy flowers. The queen picked a pink peony. Hua Fei said that pink was used in my concubine's room, which was unsightly, and pointed out that the queen's color was declining in her later years. Huan Zhen recited Liu Yuxi's "Appreciating Peony" and said, "The peony demon in front of the court is unqualified, and the lotus flowers in the pool are pure and affectionate. Only peony is the real national color, and capital moves when flowers bloom. " To help the queen get rid of embarrassment and clear her state.