This is a short write-up how I imagine the florist working:

First: The Florists task is it to create flowers. For this, he requires either bonemeal or compost from the composter (I hope that one gets ready some time).

The florist building requires one "Healthy flower patch" each building level to be crafted.
It's a block which basically looks like "very good looking grass" the difference is that it ticks.
the florist will use bonemeal or compost on it (the player can't) and this will cause a random flower to grow after a certain time depending on the florists level.

The block won't be as cheap it is:
T T T
M I M
D B D

D = Dirt
B = Buildtool
M = Bonemeal or compost
I = Diamond
T = white tulip

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