I have over 400 flowers so I don't really have the space to make gardens, but I did separate all the breeds so I'd be able to track my progress of hybrid growth better. Roses are in the bottom right quarter, tulips in the bottom left, cosmos in the upper left, and pansies in the upper right. Then I lined my grass-worn pathways with flowers so I'd get grass to grow back along the edges. Anywhere there was a clearing I tried to arrange flowers for hybrids to grow. I sort of like the look of seeing only one type of flower in any one section of my town.