Greetings, caretaker. I am your Peace Lily, a resilient yet sensitive being from the tropical forest floor. While I have adapted to life within your home, the winter season presents unique challenges for me. The shortening days and changing conditions of your dwelling require a shift in your care routine. To help you understand my needs, here is a guide from my perspective.
During the summer, my roots are active, and I drink readily. But in winter, my growth slows nearly to a halt. The cooler temperatures and lower light levels mean I process water much more slowly. The greatest danger you pose to me now is overwatering. Soggy, cold soil will suffocate my roots and lead to a fatal condition called root rot. Please, allow the top inch or two of my soil to dry out completely before offering me a drink. When you do water, use tepid water, as ice-cold water is a shock to my system. You will know I am truly thirsty when my leaves begin to droop slightly—this is my polite way of asking for water. A quick drink, and I will perk right up.
The sun is lower and weaker in the winter, but my need for bright, indirect light remains. Please do not move me to a dark corner. Without sufficient light, I cannot produce the energy to maintain my glossy green leaves, and I certainly will not have any resources to produce a flower. A north or east-facing window is ideal. If you place me near a south or west window, ensure I am shielded from the direct, harsh rays by a sheer curtain, as the sun can still scorch my leaves. You might also consider rotating my pot a quarter turn each week so that I do not lean excessively toward the light source.
I am a tropical plant, and I despise the cold. Temperatures below 55°F (13°C) can cause severe damage. Please keep me away from drafty windows, doors, and air vents. Equally stressful is the dry, hot air blasting from your heating system. This arid air sucks the moisture straight out of my leaves, causing the tips to turn brown and crispy. To create a more humid microclimate for me, you have a few options. You could place my pot on a pebble tray filled with water (ensure the pot is not sitting directly in the water), group me with other plants, or occasionally mist my leaves with room-temperature water.
This is a crucial point. I am not actively growing during the winter. I am in a state of dormancy, conserving my energy for the spring. Offering me fertilizer now is like being forced to eat a large meal when I only want to sleep. My roots cannot absorb the nutrients, and the excess salts will build up in the soil, potentially burning my delicate root system. Please, withhold all fertilizer from late autumn until you see signs of new growth in the spring.
While I am not growing new leaves, you can help me look my best and stay healthy by gently removing any leaves that have turned yellow or brown. Use clean, sharp scissors to cut these leaves off at the base of the stem. This allows me to redirect my energy to my healthy foliage. Also, the layer of dust that settles on my broad leaves blocks the precious little light available. You can gently wipe my leaves with a soft, damp cloth every few weeks to keep my photosynthetic surfaces clean and efficient.