Use Pixie Dust deep inside the forest in the hidden grove statue.
Gift a proper gift to not get kicked out.
Play with the Pixies + Bonus Thiccness.
Then ask the Queen of the gaping plant.
She will ask for a gift.
Then you need to have had the Milk farm refurnished.
Plus a way into Upper New Ark. ~Quality Passes~
Plus a hefty sum of Credits.
Plus a refinery from Upper New Ark Mall.
After all that when you have obtained the refinery you can then use it to make cheese.
That's what she wants. ~Cheese~
After all that she will tell you how to tame the plant.