Update: It finally stopped raining
On the west: Pink Rose adds four, Red Rose moves up the outside, Black Tulip tries to escape the trench, and Red Hyacinth eliminates the Purple Rose in their midst.
On the east: White Cosmo takes a lane back from Orange Windflower and steals a lane from Orange Rose. Meanwhile, Orange Windflower adds a flower in a safe lane, Orange Rose blocks Black to but heads with Red Hyacinth, and Red Hyacinth grows onward unabated