I Bred my roselia and ditto to get a budew, but I got a roselia. Do I need a specific item to get a budew?
To get Budew you must make Roselia breed while it's holding the Rose Incense. Budew evolves with friendship (only during daytime. Make it hold the Soothe Bell to speed up the process) and Roselia evolves with a Shiny Stone.
I hope this helps!