Your amaryllis in winter indoors needs three things: bright light near a window, water only when the soil dries out, and a cool room. Get these three factors right and your winter blooms will last for weeks instead of days.
Your daily winter amaryllis care routine is simpler than you might expect. Check the soil every few days by pressing your finger about an inch (2.5 cm) into the surface. If it feels dry, water at the base until it drains through the bottom. Rotate the pot a quarter turn every 2 to 3 days so the stalk grows straight up instead of bending toward the window. That's pretty much it for day-to-day maintenance.
I look forward to this part of winter every year. When I first grew an amaryllis, I was stunned by how fast the stalk rose up. It grew several inches in a single day. The fat buds at the top swell bigger each morning. Then one day you walk in and the first flower has cracked open. That moment makes all the months of leaf care and dormancy worth the wait.
Room temperature plays a bigger role in amaryllis blooming indoors than most people think. Cooler conditions around 60°F to 65°F (16°C to 18°C) slow down the metabolic rate of the flowers and help each bloom hold on much longer. A warmer room at 75°F (24°C) or above pushes the flowers to open and fade faster. If you can, move the pot to a cooler room at night to stretch the display even further.
Where you place the pot matters just as much as temperature. Pick a spot near a south-facing or west-facing window that gets strong light but avoid direct afternoon sun on the blooms. Keep the pot 6 to 12 inches (15 to 30 cm) away from the glass since winter windowpanes can get cold enough to damage the plant. Stay away from heating vents and fireplaces too because dry, hot air shrivels the petals fast.
Tall stalks sometimes need a little help staying upright, especially varieties that grow past 20 inches (51 cm). Push a thin bamboo stake into the soil near the edge of the pot and tie the stalk to it with soft twine. This keeps your amaryllis from toppling over when the heavy flowers open at the top. A weighty ceramic or stone pot also helps with stability.
The three most common winter mistakes are easy to avoid once you know them. Overwatering tops the list since heated indoor air tricks you into watering too often. Your plant doesn't need as much water as you think in winter. Placing it on a shelf far from the window robs it of light for strong stems. And keeping your thermostat at 72°F (22°C) or higher will cut bloom time nearly in half.
Give your amaryllis a bright, cool spot by the window and a simple watering routine, and those winter blooms will light up your home for 3 to 6 weeks straight. Few plants deliver such a big reward for such a small amount of winter care.
Read the full article: Amaryllis Plant: Complete Growing Guide
