Mums do best in moist (not soggy) soil. Mums in containers should be watered almost every other day but be sure to check the soil before watering. If you have newly planted mums in the ground, you should water 2-3 times per week. Once they are well established in the ground they should be fine with natural rainfall but be sure to check them weekly. Don’t allow your mums to wilt.
If you are planting your mums, choose a sunny location with fertile well-drained soil. Young plants should be spaced 18-24 inches while you can plant mature plants at any desired spacing. If planting in the fall, generally no fertilizer is needed.
Please note that mums in containers need to be planted before the first hard frost. Keep them moist until the ground freezes and then cover with mulch to assure regrowth in the spring.