1.
Mums drink a lot of water! Check everyday, if the soil is dry to the touch then give them a drink, around a gallon per mum.
2.
Bring it back to life! If the mum is wilted, set it in a tray that holds water and allow your mum to absorb water for about an hour. This will guarantee it gets completely soaked up.
3.
Want your mums to come back next year? Get your mums planted in the ground early! Preferably before the end of September. This will give the plant enough time to establish roots in the soil and give it a good chance of coming back next fall! Don't forget to still water regularly! Bonus Tip: Water with a root stimulating fertilizer will help!