Reynoutria is a high-maintenance plant that demands consistent attention. It requires rich, well-drained soil and regular pruning to control its rapid growth and prevent invasiveness. Ensure it gets full sun to partial shade for optimal growth. Special care should be taken to monitor and manage its aggressive spreading nature, as reynoutria can quickly overtake an area if not properly controlled.
Watering schedule: Every week
| Care Difficulty | Hard |
| Lifespan | Perennial |
| Watering Schedule | Every week |
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Hearing the name of japanese knotweed can strike fear in the heart of homeowners. When this aggressive and invasive weed is identified on a property, mortgage lenders sometimes deny loans or demand extensive chemical treatment. This is due to the fact that the root system of japanese knotweed is so extensive that once established, it can be nearly impossible to eradicate.
Giant knotweed (Reynoutria sachalinensis) is considered an invasive weed in most areas. In fact, some states in the US have made it illegal to plant or intentionally spread it. Long rhizomes allow it to reproduce rapidly, forming clonal colonies that crowd out other species. A chemical derived from giant knotweed has been used in biopesticides to protect growing plants from fungi.
The two-colored or 'variegated' leaves of Japanese knotweed 'Variegata' are the reason for its name. These pale leaves are quite different from the parent's green foliage and give this hybrid added ornamental appeal. Variegated japanese knotweed spreads quickly but can be controlled easily in containers.
Common issues for Reynoutria based on 10 million real cases
