Showy garden flower (7)
(Other definitions for verbena that I've seen before include "Ornamental plant with showy flowers" , "Vervain (plant)" , "Ornamental pant" , "Herbaceous plant" , "Garden plant" .)
(Other definitions for peony that I've seen before include "Garden flower" , "Plant with large red, white or pink flowers" , "Bloom" , "Herbaceous flower" .)