Q.My Flowering Mum Got Really Big But The Buds Still Haven’t Bloomed? Will They?
My daughter got this for me for my birthday in May and it had flowers..then they died and I cut the plant back and it got small but then I gave it miracle grow and took care of it good and it came back huge and then got buds but it’s been a couple weeks and they still haven’t bloomed

Certified GKH Gardening Expert
Garden mums often will bloom twice if cut back like you did. Some people cut the early buds off. They will still bloom if a freeze doesn't kill them first, though mums can take a light frost.
https://www.gardeningknowhow.com/ornamental/flowers/chrysanthemum/chrysanthemum-bloom-season.htm