Saves up for flowers (5)
I believe the answer is:
vases
'saves up for flowers' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for vases that I've seen before include "Open jars for flowers" , "Jars for flowers (5)" , "Containers for cut flowers" , "Receptacles for cut flowers" , "Vessels for flowers" .)