I recommend
Fields of Gold
Not your tipical cultivator story. Set in a cultivator setting, but more from the perspective of a common family.
Warning: Do not read on a empty stomach. I guarantee you will get hungry.
I also have a request if anyone knows of a story where the Cultivator actually main way of powering up is he does farm and cultivates the land? Growing tones of spiritual crops for eating and pills.
Lessee... I recall one that
started with the protagonist tending to spiritual crops as part of a sect.
Then there's one where the protagonist is just living on his own and tending to his crops ("Carefree life of dreams", or some title like that?) - again, it seemed to be just for the first part (although I dropped it a bit after he left, so maybe he went back).
There's "Elixir Supplier", that's set in modern-day China, where the protagonist is cultivating and becoming a doctor. I recall it as being... rather preachy? But a focus was on growing crops to make medicine.
Growing medicines and cultivation candy is often something that comes up in stories where the protagonist has a pocket dimension. One I read some of years back, "Ancient Strengthening Technique" (I think that was what it was called) did that, as did "Lord of All Realms" (the latter is a better read than the former, I think).
The thing is, is that almost always the xianxia protagonist has to
travel - once they 'conquer' an area, they have to be moved to a new "higher level" one. So a farm or garden is going to be left behind (unless they can take it with them).
I suppose another way to do it is that the protagonist, by tending to the soil with the appropriate techniques, establishes a connection or resonance with the earth, which in turns empowers them. The more land they cultivate in this way, and the more intensely they do so, the stronger the connection.
The rich crops are sold on, with the proceeds going to buying things that can improve the "farm", or purchasing nearby land to increase its size (or the physics of the world are such that the farm can grow on its own). Perhaps techniques are discovered to make it easier to tend to large areas (puppets, tamed beasts, clones, domains, etc). New crops to plant, of course. Dealing with the inevitable greed and politics to protect the territory.
There's probably a decent story in that approach... but it's probably not going to be found in the standard xianxia fare.