1) I am looking for a unit that can plant wheat and plantation resources or a unit that do what the herdsmen do but with plants. This planter unit has not been created yet. The planter can sow wheat, sugar, cotton, cocoa, silk, citrus, banana, wine (that ones you can find in the game). If you can, you can add new resources like corn, tobacco, vanilla, coffee and so on. 2) The reason why I am looking for a planter is the Portuguese Overseas Empire. They have a unique building named "engenho". With that unique building, you can replace those resources with sugarcane, as well you can replace wine for cotton, if you find cotton is more suitable than wine, for instance. Since you have at least one improved copy of a luxury resource on your own lands, you can plant new copies. 3) Another idea is sending your planter to a cotton resource, for instance, if the resource is located outside of your territory. When your planter is on the cotton resource, you can press "get the seeds" button and the resource will disappear. As you cross safely the borders of a city you can actually control, you can plant a copy of that cotton on your city radius. If you find a plantation resource that is not suitable with grassland, you can transfer that plantation resource to a desert resource or even a plains resource for better benefits. You can plant in every type of land, except tundra or snow. Those places will receive the deers resource only. 4) JFD's Beligum allows the player to build plantations on resources that are located in neutral lands -- in that case, plantations on neutral lands provide two copies of that resource. I believe you can make this mod compatlbie with that mod, too. 5) You can have the planter as soon as you can build the granary.