Common garden plant (6)
'common garden plant' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for lobelia that I've seen before include "something flowery" , "Common garden flower" , "Lo, I bale out the flower" , "Bloomer" , "Oilable (anag)" .)
'common garden plant' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for petunia that I've seen before include "Bloomer" , "Colourful" , "Flower - tuna pie (anag)" , "Common bedding plant" , "Auntie foolishly made under pressure" .)
(Other definitions for dahlia that I've seen before include "Flower -- pale violet or amethyst colour" , "Large-headed flower" , "Had Lia this peculiar flower?" , "Plant with tuberous roots and showy coloured flower heads" , "'Hi, a lad has the flower (6)'" .)