As autumn deepens and temperatures fall across the UK, our houseplants start to feel the change just like we do. Cooler air, lower light, and indoor heating can all affect their health. But with a few seasonal adjustments, you can help your plants stay happy and thriving right through winter.
Here’s how to prepare your indoor garden for the chilly months ahead.
🌿 1. Watch Out for Cold Draughts
Even hardy houseplants dislike cold draughts. Keep them away from open windows, front doors, or anywhere that gets a sudden chill. Plants like ferns and calatheas are especially sensitive to cold air — they prefer a consistent, cosy environment.
🌱 2. Adjust Watering
During autumn and winter, most plants grow more slowly and need less water. Let the top layer of soil dry out before watering again, and always check that pots have proper drainage. Overwatering is one of the most common causes of root rot during the colder months.
💡 3. Maximise Light
With shorter days and weaker sunlight, your plants will appreciate a little help. Move them closer to windows where they can soak up natural light, ensuring they are kept away from open windows. Rotate pots every few weeks so all sides get exposure, and clean dusty leaves to help them photosynthesise more efficiently.
🌸 4. Avoid Sudden Temperature Swings
Try not to place plants too close to radiators or heaters — the dry heat can cause crispy leaves and stress. Aim to keep rooms between 15–24°C where possible, and maintain even conditions.
💧 5. Boost Humidity
Indoor heating tends to dry out the air, which tropical plants hate. Grouping plants together, using a pebble tray with water, or misting occasionally can make a big difference. Alternatively, a small humidifier can help balance moisture in the air.
🌿 6. Pause Fertilising
Most houseplants take a rest during the cooler months, so they don’t need as many nutrients. Stop or reduce fertiliser until spring, when active growth returns.
🌱 Final Thought
With a few simple changes, your houseplants can breeze through autumn and winter without stress. Keep them warm, give them light, and go easy on the watering — and they’ll reward you with healthy growth when spring returns.