Nature inspires me greatly.
Nature makes me stop and think. Nature makes me slow down and consider. When I slow down and think, I write haiku. I find it excellent discipline as a writer to create haiku. Restricted to 19 syllables, I have to make sure every word counts in order to paint a vivid picture in the reader's mind. This is good because on first drafts I tend to be too wordy.
The changing seasons and the variable weather inspire me a lot. (I suppose really that I didn't need variable before weather, did I?!) Nature changes all the time: - grows, fruits, decays, sleeps - a seemingly endless cycle.
In my novels and stories I include observations about Nature - the weather, the seasons, things that I notice. Sometimes people who read them query my descriptions. But I only write about what I've seen or heard. You have to slow down and pause in order to really notice things properly.
Nature, in all it's varying forms, will always inspire me to write.