How to Winterize Your Houseplants

As temperatures drop, it’s time to bring your houseplants indoors for the season. Transitioning them properly helps prevent shock, pests, and other issues that can pop up when moving plants from outdoor to indoor conditions. Here’s how to keep your leafy friends cozy and healthy all winter long.

Step 1: Flush Out Hidden Pests

Look over your plants’ leaves—both tops and undersides—for signs of pests like spider mites or aphids. If you spot anything, wipe the leaves gently with a damp cloth or use an insecticidal soap to treat the issue before bringing them inside.

Before bringing your plants inside, it’s important to make sure no bugs are hitching a ride. Insects and their eggs can hide in the soil, and the last thing you want is a pest infestation indoors.

Try this gentle, plant-safe soil flush:

• Fill a gallon jug with water

• Add 1 capful of rubbing alcohol

• Add a few drops of mild dish soap

• Pour the solution slowly into the plant’s soil

  
  

This mix will encourage bugs to leave the soil without harming your plant—and help you avoid any surprise “bug babies” once your plant settles in for winter.

2. Replenish the top soil.

Over time, soil can become compacted or depleted of nutrients. Gently remove the top inch or two of soil and replace it with fresh, well-draining potting mix. This helps prep your plant for the next growing season and gives it a little boost before winter dormancy. Just be sure not to pack the soil too tightly - roots still need room to access air, water, and nutrients.

3. Pay Attention to Water and Light

Indoor conditions are different, especially once the heat kicks on. Your plant may dry out more quickly due to the warm, dry air. Keep an eye on the soil and adjust your watering schedule if needed. Also, be mindful of light levels:

• Place low-light plants in corners or away from windows

• Keep sun-loving plants near bright windows, but avoid cold drafts

  
  

Every plant will adjust a little differently—some may even go semi-dormant for winter, needing less care overall.

Step 4: Clean and Trim

Give your plant a little pre-winter spa treatment. Trim away any dead or damaged leaves, remove fallen debris from the soil, and wipe dust off the leaves so they can breathe (and photosynthesize) more efficiently. Wipe down the pots too—it's all part of the refresh!

Need Help with Your Houseplants This Winter?

Stop by our Providence flower shop to browse seasonal plants, potting supplies, and plant care essentials - or shop online for local plant delivery. Whether you're prepping your current collection or adding something new, we’re here to help you keep things green all year long.