How to Grow Daylilies Indoors

Select a pot that is approximately 12 inches wide or larger. Ideally, it should have a drainage hole and dish underneath to prevent overwatering and improve water drainage. Add 1 to 2 inches of gravel or rocks to the bottom of the pot. This layer also improves water drainage and is necessary if the pot has no drainage hole.

Fill the pot with potting soil that is rich in organic matter such as peat and has a pH level between 6 and 6.5. Leave approximately 1 inch of space between the rim and the soil line.

Plant the daylilies so the tubers or crowns are 1 inch deep. Space them approximately 4 inches apart. Potted plants can usually be planted closer together than garden plants.

Water the newly planted daylilies until the water drips out the drainage hole. If water collects in the dish, dump it out.

Place the pot near a sunny window, such as south-facing window, where they will receive a sufficient amount of light -- a must for growing daylilies indoors.

Keep the soil moist and clip off spent blooms. Do not cut off the foliage until after it yellows. If the plants die back in the fall or winter when light is of short supply, store the pot in your garage or basement until the spring.

Check on the soil every month to be sure it has not completely dried out. Water it slightly if necessary. Bring the pot back to the sunny location in the spring, fertilize it with a slow-release fertilizer labeled for daylilies and water it. Your daylilies should begin to grow again in a couple of weeks.