I reazied as I played Flowers2 thatI already had a level named Flowers and since I got it from hibernatus on old Mopolauta I guess it´s the same as you put up here (with a wall of Flower). And I just had to play it and I got 12:36.
yeye, that is that... now go beat me...

I downloaded flowers2 (many flowers) just to see what a 51 flowerlevel would look like... well. It wa inly one Flower there and that one I got in 3:01. Can you beat it, sure you can... go hoyl! :)