Flower Beds, four flowers on one block

I was thinking of craftable flower beds as a way to place up to four individual flowers on a single block. The flower beds could be crafted with grass blocks to make grassy flower beds, podzol to make podzol flower beds, or dirt to make bare flower beds. The flower beds would only be three or four pixels tall and placeable on any full block. 

Up to four different flowers could be placed on the same flower bed. The player would be able to choose which corner of the flower bed to place a particular flower.

This item would allow much more creativity in gardens and would make gardens look much more colorful and lively.