In game you can also feed/water your crop.
Information about feeding/watering:
You can purchase feeding or watering from the in-game shop
You can only own a maximum of 50 of each at the same time
The cost is 1 $Wai per feeding/watering
Feeding/Watering your crop will use up 1 energy each time
Feeding/Watering will increase the chances of getting multiple items when breeding them in the Breed House
Feeding/Watering will increase weight and star level
(unconfirmed) Feeding/Watering might have an effect on total $Wai of the crop if it turn into a Mutated NFT Crop