Winter Storage for Large Pottery Containers and Clematis

Massachusetts winters can wreak havoc on large pottery pots left outdoors. The primary culprit isn't freezing alone—it's moisture combined with freeze-thaw cycles that causes clay to flake, chip, and crack. Meanwhile, clematis vines in containers face a different threat: their roots remain active in winter and cannot survive frozen soil.

Storing Empty Pottery Pots

1. Empty and dry the pots completely.
2. Turn upside down on a dry surface (not wet ground).
3. Cover with plastic and weigh down with a board to keep it secure.
4. Ensure the storage surface stays dry—moisture wicking up from the ground defeats the purpose.

Keeping pots bone-dry minimizes expansion/contraction damage.

Overwintering Container Clematis

Do not leave clematis outside. While top growth goes dormant, roots need unfrozen soil to absorb water and nutrients. Move the pot into an unheated garage or basement that stays above freezing. Water only if the soil becomes very dry, and check periodically for pests or disease. Return outdoors after the last frost.

Key Takeaways

• Dry storage preserves pottery; moisture + freeze/thaw destroys it.
• Clematis roots need winter protection—move containers to a frost-free area.
• Minimal watering during dormancy; resume normal care in spring.