There's some bugs when playing the game with a controller. It seems to cause the "Farming" menu to appear multiple times (though all have identical sub-options, I checked). You can't plant anything that was added in the mod (or its sister mods for planting lettuce, etc).

It seems to be that the controller uses a slightly different UI menu, so it might just be some copy/pasta into the controller UI from the keyboard/mouse UI menus. Not sure though. Here's some screenshots. With a controller, you press X (or equivalent) to interact with the farm plots, then select "Farming", and select a plot (if there's nothing planted it gives options for sowing seeds, if there's a plant it allows you to inspect it, water it, etc).

KB/MOUSE
https://i.gyazo.com/a11b357f7d0ad7057acf7c96528d316c.png

CONTROLLER (Interacting with Plot)
https://i.gyazo.com/0830d2cadd73060cb514346d60ac2579.png

CONTROLLER (Sow Seeds)
https://i.gyazo.com/4eeaf412f8933d269b9c2ddcb6afa030.png