What carson said.
I have live plants in my tank
I have about 2 square feet of moss wall with java moss (good because the axies cant dig that up!)
I have java ferns stuck to my fake rock (with a tiny dab of suer glue until they attach)
I have Xmas moss stuck to the fake rocks
I have anubias stuck to the fake rocks
I have wysterias - I tried "bagging" the root systems of the wysterias to a large river pebble - essentially use some fine mesh, wrap it around the root system and use a tie to wrap it up like a xmas pudding - i did this because apprently wysterias like a deep root system. Eventually, my guys have broken all but 2 stems off the submerged rocks / roots, and most of the wysteria is now floating
I also have a bunch of elodea floating - i like the elodea because it just keeps growing and growing, i trim the older end off as it starts to look shabby, and it just grows out the other end
Honestly, you will waste a lot of time trying to get the plants right in your axie tank, i did! Fact is, if it is buried - the axies will dig it up or knock it over.
So i'd just set it up for the axies, and less for the plants. Get low light, sturdy plants, super glue them to your hides etc, or let them float (my wysteria is going nuts, even though most of it is floating which wysteria supposedly doesnt like)
Get a substrate that suits your axies, not plants (nutrients etc in the substrate that plant lover like might be harmful to the axies) I use Caribsea Tahitian moon and it is awesome for the axies (and totally useless for the plants

)
I also dose the tank with a low dose of Flourish excel - I started that because i had a brown algae issue and the flourish gets rid of that - but the plants go nuts on it, and it hasn't effected the axies or changed the water parameters
Hope that helps
Bren