Ali the Farmer is a NPC located north of the Al Kharid castle. He can be found walking around the area.
He currently has no role in any quest or any skill. There are two dialogue options when talking to him, but they both lead to practically same conversation. He speaks about farming in Al Kharid mentioning the nearby cactus patch. He also says he is about to set up a local farming store. However, supplies for his shop weren't yet delivered, so he is currently unable to provide any gardening tools or seeds. Ayesha has since filled this duty.
There is a glitch that some people cannot see him, amongst other Alis, even after The Feud.