Pruning is not usually necessary for Japanese forest grass (Hakonechloa macra) in the fall. This ornamental grass has a graceful and delicate appearance, and its foliage adds a beautiful touch to shaded areas in the garden. However, there are some considerations and recommendations when it comes to managing this plant during the fall season.
Firstly, it is important to note that Japanese forest grass is a deciduous grass, which means it will naturally go dormant and its foliage will turn yellow and brown as the temperatures drop. This is a normal part of its growth cycle, and it is not necessary to cut back the grass solely for aesthetic reasons.
However, if you prefer a tidier appearance or if the dead foliage bothers you, it is perfectly acceptable to trim back the grass in the fall. You can use clean and sharp gardening shears to carefully cut off the dead leaves at the base of the plant. Be sure to remove only the dead foliage and not any living green leaves. This will help maintain the overall appearance of the plant and can also prevent any potential disease or pest issues that may arise from leaving decaying foliage in the garden.
When cutting back Japanese forest grass, it is important to avoid cutting too close to the crown of the plant. The crown is the area where the leaves emerge from the base of the plant, and cutting too close to this area can potentially harm the plant and affect its future growth. Aim to leave a few inches of the grass blades above the crown when trimming.
After cutting back the dead foliage, it is a good practice to remove and clean up any debris from the garden bed. This helps to minimize the risk of pests or diseases overwintering in the garden and ensures a clean and healthy environment for the plants.
Once the pruning and cleaning are complete, it is recommended to apply a layer of mulch around the base of the plant. Mulching helps to insulate the roots and protect them from extreme temperatures during the winter months. It also helps to retain moisture in the soil and suppress weed growth. Use a natural and organic mulch, such as shredded bark or compost, and apply it in a layer about 2-3 inches thick.
While Japanese forest grass does not require pruning in the fall, it is perfectly acceptable to trim back the dead foliage if desired. Take care not to cut too close to the crown of the plant and clean up any debris afterwards. Applying a layer of mulch can provide additional benefits for the plant’s health and winter protection.
