In Infrared photography you have flexibility on picking your colors. In my experience with the Enhanced Filter (665nm) from Life Pixel, I have at least two dominant colors as shown.

Color balanced image without color swapping.

Image color swapped in Photoshop.

You can get a golden brown sky and bluish foliage as taken from a white balanced shot straight from camera or a more “realistic” color choice of bluish sky and yellowish foliage. In some other infrared photos you see in the internet, you may find a snow white color for the leaves, but these may have been taken with infrared cameras with 700nm and above.