Here's a site that lists lots of different names inspired by nature, it's quite a long list so hopefully you'll find some options you like. I've used it a few times to name characters in other games. http://www.lunarberry.com/library/nature_names.html
Let us know what you decide on
My very first town was called Mapleton and I know Rosewood used to be a really popular name, too. I came really close to naming my current town Marigold before I decided to go with Lux instead, which is Latin for "light" as in the light of the sun. Other names:
Bjorn (means "Bear")
Sirius as in the dog star
Ivy Hill
Pine Bay
Equinox
Solstice
Dusk Bay
Dawnwood
Tundra
My cycling town is Acacia, the latin name for Wattle, Australia's floral emblem
I also thought of Banksia, Fern (maybe Fernloft?), Eucalypt, Red Gum and HuonPine