Winter can be a challenging season for houseplants. As someone who has spent countless winters tending to my indoor jungle, I’ve learned that these green companions need extra care when the temperatures drop and the days grow shorter. It’s not just about keeping them alive—it’s about helping them thrive despite the harsh conditions. Over the years, I’ve developed a simple yet effective six-step guide to ensure my plants make it through winter unscathed. In this article, I’ll share my personal experiences, tips, and tricks to help you give your houseplants the love and attention they deserve during the colder months.
Whether you’re a seasoned plant parent or just starting out, these steps will equip you with everything you need to keep your leafy friends happy and healthy. So grab a cup of tea, cozy up, and let’s dive into the ultimate winter survival guide for your houseplants.
Step 1: Adjust Your Watering Routine
One of the biggest mistakes I made as a beginner was sticking to the same watering schedule year-round. What I didn’t realize is that houseplants’ water needs change dramatically in winter. With shorter days and lower light levels, plants grow more slowly, meaning they don’t absorb as much water. Overwatering is one of the leading causes of houseplant death during this season, and trust me—I’ve been there.
To avoid soggy soil and root rot, I now check the moisture level of the soil before watering. For most plants, I stick my finger about an inch into the pot—if it feels dry, it’s time to water. If it’s still damp, I wait a few more days. During winter, I find myself watering about half as often as I do in summer. Succulents and cacti, which store water in their leaves, may only need watering once every three to four weeks.
Another tip is to use room-temperature water. Cold water can shock the roots, especially in chilly winter conditions. And if you have hard tap water, consider switching to filtered or distilled water, as chemicals like chlorine and fluoride can build up in the soil and harm your plants over time.
Step 2: Boost Humidity Levels
Winter air tends to be dry, thanks to central heating systems and cold outdoor temperatures. This drop in humidity can wreak havoc on tropical plants like ferns, calatheas, and pothos, which prefer moist environments. I remember walking into my living room one winter morning to find crispy brown edges on my beloved monstera leaves—a clear sign that the air was too dry.
To combat low humidity, I rely on a few tried-and-true methods. First, I use a humidifier near my plants. It’s a game-changer, especially for those sensitive to dry air. If a humidifier isn’t an option, I place a tray filled with pebbles and water beneath the pots. As the water evaporates, it increases the humidity around the plants. Grouping plants together also helps, as they release moisture through transpiration, creating a mini rainforest effect.
Misting is another technique, though I’ve found it less effective unless done multiple times a day. If you choose to mist, use lukewarm water and avoid spraying directly onto the leaves, as standing water can lead to fungal issues.
Step 3: Optimize Light Exposure
With shorter daylight hours and weaker sunlight in winter, many houseplants struggle to get enough light. I noticed this firsthand when my fiddle-leaf fig started leaning toward the window and dropping leaves. To address this, I rearranged my plants to maximize their exposure to natural light.
South- and west-facing windows are ideal for sun-loving plants like succulents and citrus trees. For low-light plants like snake plants and ZZ plants, east- or north-facing windows work well. If your home lacks sufficient natural light, consider investing in grow lights. I added a couple of LED grow lights last winter, and they made a world of difference for my shadier corners.
Dusting the leaves regularly is another important step. Dust buildup can block sunlight and reduce photosynthesis. I gently wipe the leaves with a damp cloth every few weeks to keep them clean and shiny. For larger plants, I use a soft brush or even take them outside for a quick rinse (weather permitting).
Step 4: Protect Against Temperature Fluctuations
Houseplants are sensitive to sudden changes in temperature, and winter brings plenty of those. Drafty windows, radiators, and fireplaces can all stress your plants. One year, I placed a peace lily near a drafty door, and within days, its leaves turned yellow and droopy. Lesson learned!
To protect your plants, keep them away from cold drafts, open windows, and heat sources. Most houseplants prefer temperatures between 65°F and 75°F (18°C to 24°C). Avoid placing them too close to radiators or vents, as the hot, dry air can scorch their leaves and dry out the soil quickly. Similarly, keep them away from doors and windows that let in cold drafts.
If you notice any signs of temperature stress—such as wilting, leaf drop, or browning edges—relocate the plant to a more stable environment. Consistency is key to keeping your plants happy throughout the season.
Step 5: Hold Off on Fertilizing
During winter, most houseplants enter a dormant phase, meaning they stop actively growing. Feeding them during this time can lead to fertilizer burn, as their roots aren’t absorbing nutrients at the same rate. Early on, I made the mistake of continuing my regular fertilizing routine into December, only to see salt buildup in the soil and yellowing leaves.
To prevent this, I stop fertilizing altogether from late fall until early spring. Once the days start getting longer and the plants show signs of new growth (like fresh shoots or unfurling leaves), I resume feeding with a diluted liquid fertilizer. This approach gives my plants a break during their resting period while ensuring they have the nutrients they need when they wake up in spring.
Step 6: Inspect for Pests Regularly
Dry indoor air and reduced plant activity make winter a prime time for pests like spider mites, mealybugs, and fungus gnats. These tiny invaders can multiply quickly and cause significant damage if left unchecked. Last winter, I discovered a small cluster of spider mites on my calathea. Thankfully, I caught them early and was able to nip the problem in the bud.
To stay ahead of pests, I inspect my plants weekly, paying close attention to the undersides of leaves and the soil surface. If I spot any signs of trouble—such as webbing, sticky residue, or tiny bugs—I act immediately. For minor infestations, I wipe the leaves with a damp cloth or spray them with insecticidal soap. For more severe cases, I isolate the affected plant and treat it with neem oil or a targeted pesticide.
Prevention is just as important as treatment. Keeping the humidity up, avoiding overwatering, and cleaning the leaves regularly all help deter pests. I also quarantine any new plants for a week or two before introducing them to my collection, just to be safe.
By following these six steps, I’ve managed to keep my houseplants thriving through even the harshest winters. Each plant is unique, so don’t hesitate to adjust these guidelines based on your specific situation. Remember, caring for houseplants is as much about observation as it is about action. Pay attention to how your plants respond, and you’ll develop a deeper connection with them along the way.
Winter doesn’t have to be a stressful time for your indoor garden. With a little extra care and attention, you can create a cozy, nurturing environment that helps your plants flourish. So roll up your sleeves, embrace the challenge, and enjoy the satisfaction of watching your green companions thrive—even in the depths of winter.
