I see what you're sayin'. The white is background paper outside in my backyard, the alternative was dirt which was unappealing. I try to keep my backgrounds really simple so they don't interfere with the flower or subject.
Well I'll certainly try that and have done it in other shots ( [link] , [link] , [link] ) That option wasn't available with this shot due to conditions beyond my control so simplifying the cluttered background was most settling for me.