10 Essential Tips for Bringing Plants Indoors for Winter in Ohio

If you’ve been growing tropical or non-hardy plants outdoors, it’s time to prepare them for their winter home inside. In southwest Ohio, we typically recommend beginning this process in mid-October, once temperatures consistently drop below 50–55°F. Some plants may already start to suffer damage in the high 40s, so don’t wait until the last minute. And remember — always keep an eye on early frost warnings!

Here are 10 expert tips from Berns Garden Center to make the transition easy: 

1. Acclimate to Lower Light 

Before moving your plants indoors, help them adjust to lower light levels. Place them in a shady outdoor location for 10–14 days. This step reduces the shock of going from bright outdoor sun to softer indoor light. 

2. Monitor for Cold Snaps 

A sudden cold night can cause damage quickly. If temperatures are expected to dip into the 40s, bring plants indoors or cover them temporarily. 

3. Wash Away Insects 

Give your plants a good rinse with the hose before moving them inside. A strong stream of water helps dislodge insects hiding on leaves and stems. Repeat this a couple of times for the best results. 

4. Use Preventive Sprays 

After rinsing, spray the leaves, stems, and soil surface with insecticidal soap or neem oil. At Berns, we also recommend a houseplant systemic insecticide for longer-lasting protection against hidden pests. Allow plants to dry thoroughly before bringing them inside. 

5. Inspect the Root Ball 

Check for hidden insects in the soil. Slide the plant gently from its pot and look closely at the root ball. For a deeper clean, submerge the pot in a tub of water for a few hours — any pests will float to the surface. Let the soil drain well afterward. 

6. Choose the Right Spot Indoors 

Place your plants in a bright indoor area away from heating vents or cold drafts. Use a saucer under each pot to catch excess water, but don’t let water sit there — it can cause root rot. 

7. Adjust Watering 

Use lukewarm water and water thoroughly, then allow the soil to dry slightly before watering again. Overwatering is one of the biggest causes of winter houseplant decline. 

8. Expect Some Leaf Drop 

Don’t panic if a few leaves yellow and fall. Lower indoor light often causes temporary leaf loss while plants adjust. New growth will return in spring. 

9. Reduce Fertilizing 

During winter’s shorter days, plants grow more slowly. Fertilize sparingly with a water-soluble fertilizer, then increase feeding again in spring. 

10. Give Plants an Occasional Rinse 

Every few weeks, treat your plants to a gentle rinse in the shower with lukewarm water. This keeps leaves clean, adds a bit of humidity, and helps wash away pests. 

Ohio Gardening Made Simple 

By preparing your plants before bringing them indoors, you’ll set them up for a healthy winter and a strong start next spring. 

Looking for supplies? Berns carries houseplant systemic insecticides, insecticidal soap, and neem oil to make the transition smooth and pest-free. 

Do you have a plant question? Our Garden Experts are here to help, visit us in Beavercreek or Middletown for advice tailored to your garden.