I would never use it myself as it's my niece's name, as well as being too close to my own name but I like
Eliza, it has a Victorian charm to it.
Eliza DaisyEliza WillowEliza WinterEliza MeadowEliza WrenEliza Saffron
Do gemstones count as nature names? If so,
Eliza RubyEliza PearlEliza Beryl