The Chinese reed reaches an impressive size, not only for the height of the stalks but also for the circumference of the individual plants. What is less known is that the roots can also reach considerable proportions.
The roots of Chinese reed can reach up to two and a half meters deep into the ground
Maximum root depth
The maximum possible root depth of Chinese reed (bot. Miscanthus sinensis) is given as around 2.00 to 2.50 meters, as is the case with giant Chinese reed (bot. Miscanthus giganteus). However, this depth is only reached with the best soil and good nutrient supply. However, over time, the roots become very strong and relatively thick. Then the Chinese reed is difficult to remove from the garden.
Does Chinese reed need a root barrier?
There are different varieties of Chinese reed, most of which form clumps. But some also have longer root runners (rhizomes). A root barrier is definitely appropriate for these varieties. Clumping varieties don't need this restriction, but occasionally this restriction is worth considering. An example is the presence of vital conduits or pipes in the ground that could be damaged by root growth.
What do I have to consider when planting?
When planting, you should consider how big the Chinese reed will grow. Keep a sufficient distance to the neighboring plants and choose the location carefully. The sweet grass thrives particularly well in a sunny spot with slightly moist soil. If the reeds are growing next to a dry stone wall, the roots may grow between the stones and are difficult to control.
Read the description of your Chinese reed carefully, the exact botanical name is important. If your Chinese reed is one of the less rhizome-forming varieties or ones that form very large clumps, then you may think about a root barrier.
The essentials in brief:
- Root depth of 2.5 m possible
- Root growth dependent on soil and nutrient supply
- partly very strong root formation
- complete removal from the ground is often difficult
tips
The roots of the Chinese reed can be very robust and resilient.