As an experienced florist with more than 10 years of expertise, I've learned that plants are incredibly sensitive to temperature drops, especially when they fall below 50degF (10degC). The moment you notice consistent cooler nights, it's time to bring your plants inside. Cold-sensitive plants like tropical varieties can suffer even if the temperature dips slightly. Always monitor local weather forecasts, and once the cold sets in, it's better to be proactive than reactive when it comes to protecting your plants. Indoors, the key is replicating a plant's ideal environment. Find a spot where they get ample sunlight, as most houseplants need 6-8 hours of light. Humidity drops in winter, so placing plants near a humidifier or misting them can prevent them from drying out. Watering should be reduced during winter because plants naturally slow down their growth. Overwatering can lead to root rot, so only water when the top inch of soil feels dry. One more tip-check the plants for pests before bringing them inside. Cold weather often makes plants weaker, which can make them more susceptible to infestations. A good cleaning with a mild soap solution or a blast of water will help ensure they stay pest-free indoors throughout the colder months.
As winter approaches, it is time to bring your plants inside when nighttime temperatures as many plants are sensitive to the cold. Frost sensitive plants like tropicals and succulents should be prioritized. Indoors that aim for bright, indirect sunlight and keep the temperature between 60-70degF. Water less frequently than in the growing season, allowing the soil to dry out slightly between watering to avoid root rot. Maintaining humidity can also help your plants adjust to indoor conditions.
I'm Pete Marsh, founder of Blue Oak Landscaping. With over 25 years experience in central Ohio, I'm equipped to answer questions on plant hardiness and overwintering. Most plants can tolerate light freezes, but once temperatures drop below 28 F, it's time to bring them in. Tropical plants like hibiscus are especially cold-sensitive and should come inside before the first frost. I generally recommend bringing plants in if overnight lows will be below 45 F. Once inside, most plants need a sunny spot, moderate temperatures around 65 F, and slightly moist soil. Do not overwater, since growth will slow down. As an example, for pothos I'd suggest watering around once every 1-2 weeks. Provide humidity with a pebble tray or humidifier. Some plants may drop leaves at first due to shock, but new growth will resume in spring. If plants were outside all season, inspect them for any pests before bringing in and treat if needed. With the proper light and humidity, most plants will thrive indoors over winter and be ready to move back outside once nighttime lows are consistently above 45 F in spring.
With over 25 years of experience in the landscape and garden industry, I'm often asked about seasonal transitions for plants. In Alberta, our climate poses unique challenges. The first sign it's time to bring plants inside is when nighttime temperatures start falling below 10degC consistently. This is particularly crucial for tropical indoor plants, which I've handled extensively at Classic Landscapes. Indoors, maintaining suitable growing conditions is vital for plant health. Our experience shows that most indoor plants thrive with ambient temperatures ranging from 12-18degC, as highlighted in our Cyclamen care guides. Light is crucial, so ensure plants have access to bright light, but keep them out of direct sunlight to prevent leaf burn. Watering schedules typically change; we've observed that watering needs decrease due to reduced evaporation and lower plant growth rates. Monitoring soil moisture becomes key, and I recommend watering from the bottom when the soil feels dry. Use high phosphorus fertilizer for plants like Cyclamen, especially when buds form, to encourage blooming throughout winter.
I've been in the landscaping business for over 30 years, operating D&G Landscaping in Tewksbury, MA, where we specialize in creating and maintaining sustainable outdoor spaces. Plants respond differently to changing weather conditions, and the key to knowing when to bring them inside for winter is understanding their specific needs for cold tolerance. For example, New England winters can be harsh, and I've seen certain petennials and herbs struggle after early frosts. At D&G, we recommend moving them indoors when temperatures consistently drop below 50 F to ensure they flourish come spring. Once inside, the environment becomes equally important. I advise positioning them near windows with ample sunlight or utilizing grow lights, which help mitigate the reduced daylight hours. The indoor air can be drier, especially with heating systems running, so consider misting your plants periodically or using a water-filled tray with pebbles beneath the pots to increase humidity. For watering, we observe a shift from weekly outdoor schedules to every two or three weeks indoors due to slowed growth and reduced evaporation. Address potential pest issues before transitioning your plants inside. At D&G, we perform thorough inspections and recommend treatments like a neem oil spray if needed. These steps, combined with patient care, allow plants to thrive indoors during winter, easing their transition back outside in the spring.
Director, Marketing and Operations at Champion Distinctive Landscaping Design and Care
Answered a year ago
As the Director of Marketing and Operations for Champion Distinctive Landscaping Design and Care in North Atlanta, I've spent significant time handling seasonal transitions for various landscaping projects. One key indicator for bringing plants indoors is when night temperatures hover around 50degF. This is particularly crucial for non-native plants or those not accustomed to local climate fluctuations, as they can be quite sensitive to unexpected cold snaps. Different plants require custom care: For example, during our Millbrook Community Park change, we needed to maintain a balance in soil moisture and light conditions. A general recommendation for indoor plants in winter is providing indirect sunlight and maintaining consistent temperatures between 60-75degF. Watering should be reduced as plant metabolism slows down. I tend to advise once-a-week watering for most houseplants, adjusted based on humidity levels. Additionally, I always stress the importance of checking for pests before transitioning them indoors. During my client consultations, implementing preventative measures early has significantly reduced issues later in the season. Using products with neem oil or insecticidal soap effectively minimizes pest-related problems through winter months. These steps ensure a healthier, less stressed transition into their new indoor environment.
In most cases, you will find the plant telling you just before the cold sets in. For instance, if the growth starts to drop or the leaves start curling in slightly, it's a good indication that it's not enjoying the cooler nights, long before the last frost is set. So, I pay attention to those subtle changes. In my experience, especially with tropical or pondside plants, they tend to communicate when they're done with the outdoors. As for indoor care, pay attention to the humidity. Most people just think about light and watering, but indoor air is much drier than outside, especially with heating systems running. So, I just like to put plants together so that it becomes an almost mini-humid space or even put some water in a shallow tray next to the plants to keep them humid. Watering also has to be controlled - in the winter plants don't have as much because they're not developing yet. I tend to dry the soil a little more than I do in summer but I don't let it completely dry out. It's just about finding that inside stability, where the plant feels like it is in an indoor safe space.
When the nighttime temperatures persistently fall below 50degF (10degC), it is time to move indoor plants. Most plants can't withstand the cold; they'll pout and eventually perish, especially tropical or subtropical varieties. Don't wait until the first freeze to take action because frost is their deadliest enemy. Now, the real work starts once the plants are transferred indoors. Like houseguests in the winter, plants need the ideal environment to keep them happy and comfortable. Keep them in a spot with bright, indirect light, away from drafts or heating vents. Overwatering is a common killer, as plants slow down their growth and don't need as much. In that instance, water only when the top inch of soil is dry, and cut back on the fertilizer until the spring season arrives. Indoor humidity can be tricky, so to keep the air surrounding your plants moist, try misting them instead or setting them on a tray filled with water and pebbles.