A proper reference sheet for Withania Nightshade at last! It’s only taken me a year to order one!
 
Withania is an earth pony turned plant-hybrid. From the outset, she looks like a regular earth pony (stocky with just a little bit of pudge) but her entire body is actually plant matter, giving her distinctive pale green internals anywhere one would normally find pink.
 
She has a small house with a large garden on the southmost edge of Ponyville, where she grows a large variety of rare and specialist plants. She sells these mostly to other shops and suppliers, but also occasionally to the discerning individual.
 
Withania mostly keeps to herself, being a little socially awkward, but in a more private or intimate setting, she can become a great deal more forward or even assertive. When it suits her.
 
[Many thanks to Tea Bucket for the art!]