Zebra grass and porcupine grass are two popular ornamental grasses that are often used in landscaping and gardening. While they may appear similar in color, there are several key differences between the two.
1. Growth Habit: One of the main differences between zebra grass and porcupine grass is their growth habit. Zebra grass (Miscanthus sinensis ‘Zebrinus’) tends to arch and flop, forming a vase-shaped clump. On the other hand, porcupine grass (Miscanthus sinensis ‘Strictus’), also known as Japanese silver grass, tends to stay more upright and vertical in its growth habit. It forms a dense, upright clump of foliage.
2. Foliage Appearance: Another notable difference is the appearance of their foliage. Zebra grass has distinctive horizontal yellow bands across its green leaves, resembling the stripes of a zebra. This gives the plant its common name. In contrast, porcupine grass has green leaves with vertical creamy-white stripes or bands. The stripes on porcupine grass are more pronounced and resemble the quills of a porcupine, hence its common name.
3. Size: In terms of size, both zebra grass and porcupine grass can reach similar heights when fully grown. They typically range from 4 to 7 feet tall, with a spread of 3 to 6 feet. However, the overall size can vary depending on the specific cultivar and growing conditions.
4. Maintenance: Both grasses are relatively low-maintenance once established. They are drought-tolerant and can adapt to a variety of soil conditions. However, zebra grass has a tendency to flop over and may require staking or trimming to maintain its upright form. Porcupine grass, on the other hand, tends to stay more upright on its own and doesn’t require as much maintenance.
5. Winter Interest: Both zebra grass and porcupine grass provide winter interest in the garden. Their foliage turns golden or tan in the fall and persists through the winter, adding texture and visual appeal to the landscape. The dried foliage can also be left standing throughout the winter and trimmed back in early spring before new growth emerges.
While zebra grass and porcupine grass may share similar colors and belong to the same genus (Miscanthus sinensis), they have distinct differences in their growth habit, foliage appearance, and maintenance requirements. Zebra grass tends to arch and flop, with horizontal yellow stripes on its green leaves. Porcupine grass stays more upright, with vertical creamy-white stripes on its green leaves. Both grasses provide winter interest and can be valuable additions to any garden or landscape design.
