as meangreeneyes mentioned, visit the plantedtank website. Tons of info on getting that first plantedtank set up right.
As with reefing, lighting is also important. The stock lamp that comes with the eheim will most likely put you under lowlight. Not sure if that led has optics as with different optics you will have different par levels under the same wattage which may alter your tank beingnlow, medium or high light.
If you would want to keep a better selection other than mosses and anubias, i suggest to upgrade the lights.
For plants, If you don't mind them shipped, there are a lot of really great plants from hobbyists in the TPT forum. Lots of choices too. If you don't mind paying retail, pacific has a decent selection but a bit more expensive than othet retail shops.
IMO, getting them from hobbyists is the way to go.
Be sure to research first what plants you want to keep so you can tailor your lights and whole tank set up optimal to the plants needs.
@guarda - the edge is a nice little tank to set up as planted but their lighting definitely sucks.
I've had the edge set up for maybe a year as planted before converting to reef then breaking it down and selling it.
That small opening is a challenge when scaping and doing maintainance.
I still have a pic of it in my fluval edge thread in the nano tanks.