Lift was starting to grow up by the end of Edgedancer.
Consider the balconies for growing that were noted at the start of Oathbringer, along with the temperature being a challenge
Consider what Lift's class of Radiant does well (instant plant growth through use of Stormlight)
When Lift reaches the city, I suspect she'll be a savior packaged up in a crispy taco shell of irony. The ex food-thief will become a catalyst of Urithu's primary food source.