Overwintering Houseplants

Houseplants that have spent summer basking in the sun need a little TLC before coming inside for the winter.
Overwintering Houseplants

Overwintering Houseplants

Before the cold weather sets in, bring in any houseplants that have spent the summer basking in the sun.

Photo by: Image courtesy of Lynn Coulter

Image courtesy of Lynn Coulter

Before frost nips your garden, turning leaves and stems to mush, you’ll need to bring in any houseplants that have been enjoying the fresh air and sunshine outdoors. But a sudden change in light and humidity levels can shock your plants, causing them to drop foliage, wilt and even die. Before you move them inside, try these tips to ease the transition and keep them healthy:

  • A couple of weeks before the temperatures dip to 45 degrees F or below in your area, move your potted plants underneath a tree or onto a covered porch, so they can start adjusting to the reduced light they’ll get in your home. (Some tropicals can be damaged at 50 degrees F or below, so move them even earlier.) Another option: bring plants indoors while you still have your windows open.
  • Avoid repotting before moving your plants inside. Growth typically slows during the fall and winter, so save that chore for spring. If your plants are large, take cuttings to bring in and root instead. Otherwise, cut back tall, leggy stems.
  • If pests have gotten onto your plants—and they may be hiding under the leaves, even if you don’t see them--gently spray the plants with water from the garden hose, or put them under a gentle, tepid stream of water in the shower. You can also use an insecticidal or horticultural spray. If the plants are heavily infested or diseased, discard them. They probably won’t survive anyway, and you don’t want to bring in problems that may spread.
  • To flush out pests from containers, soak your potted plants in a bucket or tub of warm water mixed with a few drops of mild dishwashing liquid for about 15 minutes. Do not soak plants that prefer drier soils, like cacti or succulents, or plants that go dormant for the winter.
  • Clean the windows where your plants are going to sit. Accumulated grime can reduce the amount of light they get. Try to give them roughly as much light as they received outside.
  • Pick a spot for your plants away from furnace vents, heaters and drafts. Keep them away from doors that will be opened frequently.
  • If the light coming through your windows isn’t bright enough, supplement it with fluorescents or grow lights. Set timers to give your plants a rest period—that is, some darkness--every day.
  • Rotate plants growing under artificial lights. Light is usually more intense from the center of the bulbs than from the ends.
  • To raise the humidity around your plants, group them together, or keep them near the kitchen sink or in a steamy bathroom. You can use a cool vaporizer, too, or sit pots on trays or saucers filled with pebbles and some water. Just don’t let the bottom of the pots sit in the water. Constant moisture can cause plant roots to rot.
  • Remember that plants grow more slowly in reduced light, and over watering is a primary reason that houseplants die, so cut back on watering. Some plants won’t need fertilizing until they begin actively growing again in spring. 
  • When warm weather returns, acclimatize your plants by reversing the process of bringing them indoors. Let them spend a week or two in a shaded spot before exposing them to the sun and wind.

Next Up

Happy Houseplants

Learn how to avoid the most common problems that can afflict houseplants.

Houseplant Care: 8 Keys to Success

Learn how to keep your indoor plants looking good with these easy maintenance and care tips.

How to Repot Houseplants

Rejuvenate indoor and outdoor plants yearly with these step-by-step instructions.

Winter Houseplant Care

Winter is the perfect time to give your houseplants a little extra attention.

Resorting to Tropicals for Houseplants

Create your own tropical paradise with these exotic houseplants. However, in their native lands these tropical plants have jobs to do.

How to Care for a Fiddle Leaf Fig

Pruning, watering, repotting, oh my! Keep your finicky ficus alive and thriving with our ten easy-to-follow tips.

Boys With Plants: If You're an Insta Fan, You'll Love Their New Book

For those of us who could learn a thing or two about plant care, the dudes are here to help.

Consider the Microclimates of Your Home

Give your houseplants the light, temperature and humidity they need.

Grow Guide: Adaptable Houseplants and Cutting Back Your Garden This Winter

Get the answer to the question: "Are there any really good plants for indoors?"

How to Create Indoor Bonsai Gardens

Bring beautiful, living trees into your home when you practice the ancient art of Bonsai.

Go Shopping

Spruce up your outdoor space with products handpicked by HGTV editors.

What's New in Outdoors


House Hunters

7:30am | 6:30c

House Hunters

8:30am | 7:30c

House Hunters

10am | 9c

House Hunters

10:30am | 9:30c

House Hunters

11am | 10c

House Hunters

11:30am | 10:30c

Home Town

12pm | 11c

Home Town

1pm | 12c

Home Town

2pm | 1c

Home Town

3pm | 2c

Home Town

4pm | 3c

Home Town

5pm | 4c

Home Town

6pm | 5c

Home Town

7pm | 6c
On Tonight
On Tonight

Renovation, Inc.

8pm | 7c

Mexico Life

9:30pm | 8:30c

Caribbean Life

10:30pm | 9:30c

Selling the Big Easy

11:30pm | 10:30c

Mexico Life

12:30am | 11:30c

Caribbean Life

1:30am | 12:30c

Selling the Big Easy

2:30am | 1:30c

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.