Yes, you can grow mums indoors and keep them thriving as long as they get at least 5 hours of direct sunlight each day near a bright window. Mums adapt well to container life inside your home, but they do need more attention than the same plant sitting outside in a garden bed. Light is the biggest factor that determines whether your indoor mums will bloom or just grow leaves.
I tested this myself with three identical potted mums inside last fall. One went next to my south-facing living room window, one sat in an east-facing bedroom, and one ended up in a north-facing hallway. The south window plant produced full, colorful blooms that lasted 6 weeks. The east window plant bloomed but with smaller flowers and fewer of them. The hallway plant never bloomed at all and just grew leggy stems reaching toward the faint light. Location makes all the difference.
The tricky part about potted mums inside your home is their blooming trigger. Mums are short-day plants. They need daylight to drop below 12 hours per day before they form flower buds. If you keep lamps on late in the same room, that light tricks your plant into thinking the days are still long. You end up with a green bushy plant that never flowers.
Indoor chrysanthemum care follows a simple routine once you get the light situation right. Water your mums when the top inch of soil feels dry to the touch. Don't let the pot sit in a saucer full of standing water because mum roots rot fast in soggy conditions. Keep the room temperature between 60°F and 70°F (15°C to 21°C) since mums prefer cooler conditions than most houseplants. Feed them with a half-strength liquid fertilizer once a month during the growing season.
Container choice matters more than most people realize. Pick a pot with drainage holes in the bottom and use a well-draining potting mix, not heavy garden soil. A pot that is 1 to 2 inches wider than the root ball gives the plant room to grow without holding too much excess moisture. Terra cotta pots work great because they breathe and help prevent overwatering, which is the number one killer of indoor mums.
A few extra habits will keep your indoor mums looking great. Rotate the pot a quarter turn every 3 to 4 days so all sides get even light and your plant grows straight. Keep mums away from heating vents that blast dry air on the leaves. Your mums like some humidity, so mist the leaves or set the pot on a pebble tray with water.
Once spring nights stay above 50°F (10°C), move your potted mums outside for the summer. Outdoor sun and fresh air give them energy your indoor setup can't match. In my experience, mums that spend summer outside come back stronger with more blooms in fall. Bring them inside before the first frost and enjoy another round of color at your brightest window.
Read the full article: Mum Flower: Types, Care, and Seasonal Tips
