Popular bedding plant (7)
I believe the answer is:
lobelia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">popular bedding plant</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lobelia that I've seen before include "Tropical or subtropical bedding plant" , "Bloomer" , "Common garden flower" , "Popular bedding plant" , "Oilable (anag)" .)