My Cart
How to Overwinter Perennials in Pots
Introduction
As gardening enthusiasts, we often hear about the “rules” that dictate how to grow and care for our plants. But if you want to grow perennials or shrubs in pots and are not keen on keeping them around year after year? That’s okay! Gardening should be enjoyable and flexible, tailored to your needs and preferences. Whether you plan to discard your potted plants at the end of the season or try overwintering them, this guide will help you understand how to make the most of your potted garden.
Choosing Hardy Plants
Selecting the right plants is crucial if you want to keep your perennials or shrubs thriving in pots over the winter. A general rule of thumb is to choose two zones hardier plants than your local climate. Why? Because plants in pots are more exposed to the elements. Unlike plants in the ground, the soil in a pot freezes harder and thaws faster, which can lead to multiple freeze/thaw cycles—something that’s tough on plants. While you can risk overwintering plants that are only one zone hardier, your success will depend on how mild or harsh the winter is.
Selecting the Right Pot
Not all pots are created equal when it comes to enduring the winter. Containers made of clay, glazed ceramic, or porcelain are prone to cracking during freeze/thaw cycles. If you plan to leave your pots outside, opt for materials like plastic, composite, metal, or wood, which are better suited for winter conditions. Even with the right pot, remember that overwintering plants aren’t entirely carefree. Also, moisture levels should be monitored, and fertilization should be avoided while the plants are dormant.
Overwintering Techniques
For those plants that aren’t as hardy, or if you’re just playing it safe, there are several strategies you can use to help them survive the winter:
-
Unheated Garage:
- Place your pots in an unheated garage or another sheltered spot. The building’s protection will reduce the impact of freeze/thaw cycles. Make sure to water the plants occasionally so the soil doesn’t dry out completely.
-
Bury the Pot:
- Dig a hole in your garden, place the pot in it, and cover it with soil. This method helps the pot maintain the same temperature as the surrounding ground, protecting the roots from extreme cold.
-
Transplant to Ground:
- Transplant the plant into the ground for the winter and then repot it in the spring. This gives the plant the best chance of survival during the cold months.
Conclusion
Overwintering perennials and shrubs in pots doesn’t have to be a daunting task. By choosing the right plants and containers, and using some tried-and-true techniques, you can enjoy your garden year-round without worrying about losing your favorite plants to the cold. Remember, gardening is all about finding what works best for you—whether that means overwintering your plants or starting fresh each spring.
If you have any questions that weren’t answered or need more information, feel free to stop by and see us at either the Broad St. or Mechanicsville location. You can also give us a call or drop us an email at info@stranges.com. We’re here to help you grow better!
Connect with Strange’s:
Instagram: @StrangesRVA Facebook: @Strange’s Florist
Mechanicsville: 804-321-2200 West Broad: 804-360-2800
