How would one capture this properly?
Exactly as you did. Your exposure of the raw file is arguably perfect. There are some specular highlights in the water that are appropriately clipped. Your green channels have begun to clip some of the diffuse highlights on the lighter leaves on the left side but those highlights are not clipped in either the red or blue channels so they can be fully reconstructed.
Clearly there is a combination of underexposed and overexposed parts...
Clearly there is not. As noted the clipped specular highlights should be clipped and they're exactly correct as are the diffuse highlights. Underexposure? Here's the photo and I don't see any underexposure problem at all:
View attachment 149173
Shadow detail is appropriate and the photo properly reaches a black point -- there's no underexposure. Got to wonder why you would say that?
bracketing could help but what would you set the bracket values to and how many frames?
You nailed that exposure -- you couldn't make it better. From the standpoint of a digital sensor collecting data you did the best possible job. Any bracket in either direction would be inferior.
Also in these types of scenarios would you say it be optimal to also come at a different time of day?
Dropbox - DSC_4050.NEF
You titled the thread hard lighting and absolutely this kind of extreme contrast is difficult to work with. When I encounter lighting like this I most often just keep on walking because the photo is usually not worth the effort. It's got to be something that I think will pay big to get me to do the work. Evaluating the lighting, knowing what will and won't work, and knowing what effort will be required before tripping the shutter is our most important skill.
Joe