I have been hearing rumors that they are able to make your pet into a glade pet, are those rumors true?? if not then what are they used for?

They are used to make a Glade Potion, which is acquired by visiting Peka Glade with the Ornate Floral Pitcher at one of the times it's open. However, the times are random.

The times are NOT random! The glade is open from 8AM-9AM and 8PM-9PM Subeta time.

Ahahaha random.

It is probably easier to buy a Glade potion, unless the Ornate Floral Pitchers are restocked like now. This would be the best time to get one.

I was pretty sure I heard it was random, oh well.

Thank you all for the information