Give them a good soak after purchasing by submerging the root ball in a bucket of water for 20 to 30 minutes
Water from the bottom by placing the pot in a saucer or tray filled with water so the roots can drink upward.
Water at the soil level instead of pouring it over the flowers and leaves to prevent mold and rot.
Check on them daily since potted mums can dry out quickly in the wind and sun.
Put your mums in a spot that gets at least six to eight hours of direct sunlight each day, but move them into partial shade if daytime temperatures are consistently above 80°F.
Deadhead regularly by pinching or plucking off fading and dead blooms to encourage new buds to open.