Give names to trees and ponds?

a big tree can be called an emerald.

He Zhizhang has a poem "Jasper is as tall as a tree". The ancients liked to compare trees to jade. China people have special feelings for jade since ancient times. "It's important for a gentleman to raise jade to raise morality". I believe that your Chinese friend who planted trees must also cultivate sentiment, just like raising jade. Therefore, I send you the word "green jade", hoping to help you.

If you want to use ancient poetry, it's called "Jasper", but He Zhizhang's poem is made of willows. I wonder what kind of tree your friend planted?

the words of the pond can be called warm in winter.

The meaning of the pond must be: quiet and modest, dreaming late? If you are at ease, you can say