When is Machu Picchu most and least lush green?

Hello,

Can i know which months offer the best lush green views of Machu Picchu and the least lush green?
I was considering visiting early September, but worried if it would be green during that time as seen in the photos. I don't want to be disappointed if the experience would be in stark contrast to the lush green picturesque photos.

Does lush green season mean more rain interruptions which might hamper the experience?

Ideally we want clearer days and lush green landscape. What are the visiting month recommendations for this combination?

Thanks