A20 DivestiblePlants is a mod that will allow you to pick up plants in the world. To get started, you will need to find seeds for each plant, and you can mine some of them by using the pick and drop function in the game. The idea of the mod is to make the early game a bit smoother, so you don't need to gather all plants by hand.

If you are looking to get a little more involved in the game, you can use the "Plant" option, which will allow you to craft your own crops. If you are looking for more information, you can read the help document that is included with the mod.