I'm waiting for a programmer to finish some requests I made for the garden, in the mean time I am making more story, mainly with Jin. I've doubled her story content.
I am also working with Devian to make more crops for the garden. He has completed strawberries, watermelon, and is now working on raspberries
Myconids will attack your garden, Jin will defend it, and collect shroom juice from their corpses, which you have the option to collect and sell in Old Town. Normal crops can be sold at The Park.
A food drive minigame is also in the works, where you may donate food instead of selling it. Reaching milestones will reward you with tools, fertilizer, and more crops.
A system is being designed to allow Jin to randomly farm massive super crops, which sell for much more. This should happen once Jin is over her addiction and a better farmer.
Later down the line, Jin may create hybrid crops. Botany was huge culturally for the common elves before humans came along, and they actually have the lifespan to see their crops change over decades. But I'm not completely sure these last two things will be developed in v0.18, so consider them plans.
The garden is an expansion to the game bigger than any other addition, it affects almost every part of the game, so making sure it's fun is vital.