Table of Contents
Ornamental grasses add texture and movement to gardens throughout the year. Successfully overwintering these plants ensures they remain healthy and vibrant for many seasons to come. Proper preparation and care are essential, especially in regions with harsh winters.
Understanding Your Ornamental Grasses
Different types of ornamental grasses have varying winter hardiness. Some, like feather reed grass (Calamagrostis x acutiflora), are hardy in colder climates, while others, such as pampas grass (Cortaderia selloana), may require extra protection. Knowing your specific grasses helps tailor your overwintering strategy.
General Overwintering Tips
- Cut back: In late fall, trim the grasses to about 4-6 inches above the ground. This prevents disease and makes handling easier.
- Clean up: Remove any dead or diseased foliage to promote healthy growth in spring.
- Mulch: Apply a thick layer of mulch, such as straw, leaves, or bark, around the base to insulate the roots.
- Watering: Ensure the plants are well-watered before the ground freezes to provide moisture during winter dormancy.
Protection Strategies for Different Climates
Cold Climates
In regions with severe winters, additional protection may be necessary. Wrap the grasses with burlap or frost cloth to shield them from harsh winds and extreme cold. Creating a mound of mulch around the base can also help insulate the roots.
Mild Climates
In milder zones, simple mulching and cutting back are often sufficient. Regular monitoring during winter ensures that plants are not exposed to excessive moisture or freezing temperatures.
Special Considerations for Certain Grasses
Some ornamental grasses, like pampas grass, may die back to the ground or need extra protection. For these, consider root pruning or lifting the plant to store indoors if you have space. Always research your specific grass variety for best practices.
Spring Cleanup and Care
As temperatures rise, remove mulch gradually to allow new growth to emerge. Prune any damaged or dead foliage and fertilize lightly to encourage healthy spring growth. With proper overwintering, your ornamental grasses will flourish again in the new season.