The flower arrranging idea sounds wonderful, especially if you can use plants that you've grown yourself.

I've had a similar idea on the backburner for a while. I would provide indoor plants for the office.

So far I've been bringing my own houseplants into the office for the winter. I tend to collect (hoard) annuals that I keep in pots all summer and part of autunm.

But the next step would be to purchase some plants that do well under artificial light and that provide some air purification, such as peace lily. These would stay in the office year round.