☆.A.
Yes...I have planted mums and some have come back year after year. I have O. that is HUGE now, after about 10 years--it looks like a shrub! It mist be 5' across.
It's an odd science--mums. Some will not come back.
I have also heard it's better to plant them in the spring.
But I have never had the patience to keep them all winter and plant in the spring--so I take my chances. It's about a 50/50 chance.
Good luck!