Image may be NSFW.
Clik here to view.
Clik here to view.

Raising crops is an enjoyable and profitable pastime in Lightyear Frontier. It turns out that your good neighbor Ulf can help you grow some unique and rare crops, and if you're wondering how it works, here's our handy guide for how to grow all rare crops in Lightyear Frontier.
How to unlock rare crops in Lightyear Frontier
Clik here to view.

To grow rare crops in Lightyear Frontier you must first establish contact with Ulf, a friendly botanist from another local planet who requests to start a research project about the Frontier's plant life with you. Once you've built an Outpost for him somewhere on your farm, he'll arrive on his ship and you can start his questline.