I have to say I shoot in digital infrared for some years now, far before starting ultraviolet photography. Most of the time, I use the Heliopan 695nm filter : in my point of view, this wavelength is perfect to easily obtain creamy white foliage and keep the sky blue.
Here is an example of what I do, I also love reflection

Canon 6D FS + 16-35 F/4 IS + Heliopan 695nm
16mm, F/9, 1/80s, 100iso