The plant produces large quantities of viable seed – one source estimates that each inflorescence can be responsible for the production of from 3 – 7000 seeds, which can persist to make an enormous seed bank in the soil. It can also propagate itself by vegetative means, both by suckering from rootstocks and, more importantly, by layering, wherever branches touch the ground.
It can make dense stands within which light levels will not be sufficient for other plants to flourish; due to the presence of ‘free’ phenols and diterpenes (grayonoterpenes), the plant is unpalatable or possibly even toxic to mammals and probably invertebrates; these chemicals are present in the leaves, flowers and nectar. Phenols are most concentrated in the young emergent leaves and buds.
For Rhododendron Clearance In Yorkshire - call 01535 637654
Rhododendron's can be toxic to cats, dogs and rabbits.
What’s the problem?
- A killer of the countryside.
- Outcompetes native plants and destroys habitats.
- Invasive, spreading quickly across unmanaged landscapes.
- Loss of native wildlife.
- Rapidity of spread.
- Difficult to kill.
- Congregates in inaccessible areas making control challenging.
- Large root system.
- Difficult to eradicate due to its large root system and extensive seed bank – may take years.
- Unpalatable to herbivores.