I have not tried using this species, however, Tropica is able to grow it Hydroponically and several other people in the USA have grown it easily emersed.
In smaller tanks, the hill sides work well, but like the Display I did for the scaping portion, the hills can be too tall and not get enough water, while the front and lower sections get too much water.
Keep this in mind.
There's a solution however.................a sneaky one:-)
Here's how:
You simply use this same method to grow plants(whatever species), in a small amount of ADA aqua soil in a tupperware plastic container before, or while you also grow out the aquarium in the lower spots.
you are basically pre growing the HC, Ugrammifolia, Hair grass etc in a small side container with the same sediments.
Once you are ready to fill the aquarium, you carefully remove the U grammifolia (Ug) as so not to disturb the roots from these small plastic grow out containers.
Then you simply make a small depression, hole etc on the higher ground, to plant the Ug being careful to not harm the roots.
Then you fill the aquarium.
This way you can add pre grown well rooted plants into the ADA sediment right away no matter how tall the hillside might be in the aquarium.
Since the ADA sediment is the same in both cases, in the aquarium, as well as the plastic grow out container, the transition is minimal.
This is another twist on the Dry start method that does not even include the aquarium!
There are many simple options here.
I do not pretend to know them all, but as problems with the scape are shown, like really tall hillsides, little clever methods can find ways around them and use the same basic principles that started the DSM in the first place.
This idea is nothing new, but how to apply it to your situation is fairly novel and obvious.
Same deal here with the tall hillsides.
You could even grow out the HC, Ug, etc, and then add the plants much like "sod" turf grass over any shape you might have.
Then mist a couple of days and fill the aquariums.
The plants are already rooted, the sediment under the sod is the same.
Just an idea.
Regards,
Tom Barr