Delphinium (8)
I believe the answer is:
larkspur
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">delphinium</span>' is the definition.<br/ ><span class="explanation-format__explanation">(larkspur is a kind of delphinium)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for larkspur that I've seen before include "Blue flower" , "Cultivated plant of the genus Delphinium" , "Plant with flower spikes" , "Delphinium-like plant" , "it grows" .)