Zebra grass does go dormant. Dormancy is a natural process for many perennial grasses, including zebra grass (Miscanthus sinensis ‘Zebrinus’). During the dormant period, which typically occurs in the winter months, the above-ground foliage of the zebra grass will die back and turn brown. This is a normal part of the plant’s life cycle and is not a cause for concern.
Dormancy is an important survival strategy for plants, particularly those that are native to temperate climates. As the weather becomes colder and daylight hours decrease, plants enter a period of rest where their metabolic activities slow down. This allows them to conserve energy and resources during the harsh winter conditions.
For zebra grass, dormancy is triggered by several factors, including temperature and day length. As temperatures drop and the days become shorter, the plant receives signals to prepare for dormancy. It starts redirecting its energy from above-ground growth to below-ground storage structures, such as the roots and rhizomes. This enables the plant to survive during the winter months and regrow when conditions become favorable again.
During dormancy, the zebra grass may appear lifeless, with its foliage turning brown and drying out. This is a normal part of the plant’s adaptation to winter conditions. It’s important not to mistake dormancy for the plant being dead or dying. While the above-ground parts may look dead, the plant is actually conserving its energy and resources below the surface.
To support the dormancy period of zebra grass, it’s essential to provide proper care. This includes:
1. Pruning: Once the foliage of the zebra grass has turned brown and dried out, it can be pruned back to the ground. This helps tidy up the appearance of the plant and removes any potential disease or pest issues.
2. Mulching: Applying a layer of mulch around the base of the zebra grass can help protect the roots and rhizomes during the winter. Mulch acts as insulation, preventing extreme temperature fluctuations and reducing the risk of frost damage.
3. Watering: During the dormant period, zebra grass requires less water than during the active growing season. However, it’s important to ensure the plant’s root zone doesn’t completely dry out. Watering deeply once every few weeks, if there is insufficient rainfall, should be sufficient to keep the roots hydrated.
4. Fertilizing: It’s generally not necessary to fertilize zebra grass during its dormant period. The plant is not actively growing, and applying fertilizer could potentially stimulate new growth, which is not desirable during dormancy.
By providing the necessary care and allowing zebra grass to go through its natural dormancy cycle, you are helping to ensure the plant’s long-term health and vitality. Once winter has passed and spring arrives, the zebra grass will emerge from dormancy and start growing again, displaying its unique striped foliage and graceful plumes.
