Can a couple keep boughs and flowers in their bedroom in Feng Shui?

no! You can't grow flowers in the bedroom of husband and wife, and you can't grow any flowers. Flowers promote peach blossoms. You are married, and the third person is involved in promoting peach blossoms. It's unlucky! The bedroom should be hung with wedding photos of husband and wife, and an old man and an old lady can be placed on a boat to call a handicraft in the same boat. Then the husband and wife are loving and happy!