You care for kalanchoe in winter by doing three things. Cut back your watering. Keep your plant warm above 45°F (7°C). And let the short days trigger reblooming for free. Winter is a rest period for your kalanchoe. But it's also the best time to set up spring flowers without extra effort from you.
I learned how much location matters when I tested two kalanchoe plants in different spots one winter. The plant near my drafty living room window dropped half its lower leaves within a month. Cold air leaking through the glass chilled it below its comfort zone every night. The other plant on an interior shelf in my hallway stayed green and even started forming tiny buds by late January. That test taught me to keep my kalanchoe away from cold glass during the winter months.
Your kalanchoe winter care routine starts with watering changes. Cut your frequency way back to every 14-21 days since your plant barely drinks during its rest period. The soil should dry out all the way between waterings. I check mine with the finger test every week but only water when the top inch feels bone dry. Overwatering in winter is the number one killer because cold, wet soil leads to root rot fast.
Stop all fertilizer from October through February. Your plant doesn't need food while it rests and the extra salts can damage the roots when growth slows down. You'll start feeding again in March when new leaves begin to push out and the days get longer. This break from fertilizer also helps your plant focus its energy on forming flower buds instead of putting out weak new growth.
Temperature is your second big focus. Clemson Extension says your kalanchoe needs night temps between 45-65°F (7-18°C) during winter. Most homes stay in this range without any changes from you. The main danger spots are right next to cold windows, near exterior doors that open often, and close to heating vents. Move your plant at least 12 inches from window glass and away from any heat source that blows dry air.
Here's the best part about winter for your kalanchoe. The natural short days between October and March give you free reblooming conditions. Your plant gets those 14-16 hours of darkness each night without you having to cover it or move it to a closet. Just make sure you don't leave lights on in the room where your kalanchoe sits during the evening hours. Even a lamp or TV screen can break the dark period and stop buds from forming.
Did you grow your kalanchoe outside during summer? Then overwintering kalanchoe means bringing it inside before your first frost. Watch your local forecast and move your plant indoors when nights start dropping below 50°F (10°C). Check for pests on the leaves and stems before you bring it in. A quick spray with water knocks off any hitchhikers that could spread to your other houseplants.
Light still matters in winter even though your plant is resting. Place your kalanchoe where it gets bright light during the day. A south or west-facing window works great as long as you keep the pot back from cold glass. Your plant needs that daytime light to power through its rest phase and build energy for the blooms ahead.
Your winter routine is simple once you set it up. Less water, no food, a warm spot away from drafts, and dark evenings. Follow this plan and you'll see bud clusters forming by late January or early February. By spring your kalanchoe will reward you with a fresh round of bright flowers that make the quiet winter months feel worth the wait.
Read the full article: Kalanchoe Plant Care Guide
