How to Care for Plants During Winter Dormancy
During winter dormancy, houseplants slow or pause growth and need minimal care. Learn what dormancy is, how to recognize it, and how to water, feed, and light dormant plants.
Dormancy is a plant's natural rest period, triggered by shorter days and cooler temperatures. For houseplants, true full dormancy is uncommon, but most tropicals enter a semi-dormant state in winter where growth slows dramatically or stops entirely while the plant conserves energy.
Understanding dormancy changes how you care for plants. A resting plant needs much less water, no fertilizer, and stable conditions. Treating a dormant plant as if it were actively growing is one of the most common causes of winter plant loss, especially from overwatering.
What dormancy looks like
Semi-dormant houseplants stop producing new leaves, and their existing growth holds steady without expanding. Some plants, like certain caladiums and tuberous species, die back to the soil completely and look dead, while others such as pothos and snake plants simply pause. This slowdown is normal and not a sign of illness.
Dormancy is driven mainly by day length and temperature. Plants kept under strong grow lights and warm, stable conditions year-round may barely slow at all, while those relying on natural light in a cool room will rest more deeply. Knowing which situation applies tells you how much to adjust care.
Watering and feeding a dormant plant
Water is the single most important adjustment. A dormant plant uses very little, so soil stays wet far longer and root rot becomes a serious risk. Water only when the soil has dried to the appropriate depth, which in winter may mean every 2-4 weeks for many plants and even longer for succulents.
Stop fertilizing entirely during dormancy. The plant cannot use the nutrients, and unused fertilizer salts accumulate in the soil where they can burn roots. Resume feeding only when you see fresh growth signaling the plant has woken up in spring.
Light, temperature, and patience
Give dormant plants as much light as you can to keep them stable, and keep them in a comfortable temperature range, typically 60-70 F for tropicals, away from cold drafts and hot vents. Some plants, like Christmas cactus and certain orchids, actually need a cool, dark dormancy to trigger blooming.
Above all, be patient. Dormant plants will not respond to extra water, fertilizer, or fussing, and trying to force growth usually backfires. Provide stable, low-key conditions and wait for the longer days of spring to bring them back to life.
Plants that need a true rest
A few popular plants depend on a distinct dormant period. Christmas cactus needs cool nights around 50-55 F and about 12-14 hours of uninterrupted darkness in fall to set buds. Tuberous and bulbous plants benefit from a dry, cool rest before they resprout.
For these plants, dormancy is not just tolerated but required, so resist the urge to keep them warm, bright, and well-watered all winter. Respecting their rest period is what produces healthy growth and flowers the following season.
- When in doubt, underwater rather than overwater a dormant plant; dry roots recover, rotted roots usually do not.
- Do not repot during dormancy unless you are treating root rot.
- A plant that dies back to the soil may not be dead; keep the soil barely moist and wait for spring.
- Resume normal care only when you see genuine new growth, not on a calendar date.
FAQ
Do houseplants really go dormant indoors?
Most tropicals enter a semi-dormant state in winter rather than true full dormancy. Growth slows or stops because of shorter days and cooler temperatures, even though the plant stays green. Plants under grow lights in warm rooms may barely slow at all.
Should I water a dormant plant?
Yes, but much less. A dormant plant uses very little water, so let the soil dry to the appropriate depth before watering, often every 2-4 weeks or longer. Overwatering during dormancy is a leading cause of root rot.
My plant looks dead in winter. Is it gone?
Not necessarily. Some plants die back to the soil during dormancy and look lifeless. Keep the soil barely moist, leave the roots undisturbed, and wait until spring; many will resprout when days lengthen.