since you're talking about flowers i'll add my 50 cent to it ...
what i would like to see:
- more "growing" things (like fruit trees [in different sizes to simulate their growth] etc)
- a greenhouse (like - a glass dome with planters)
.oO(since im already talking about glass domes ... how about a swimming pool or some waterpark [slide, wave-pool, hot spring, sauna] tiles)
and when we're at it ... "vertical farming" actually is quite the trend nowadays (so ... some robotized vegatable planty walls for our scifiy buildings maybe)