Tell us what you think about our site... Frequently asked questions - Warwick District Council

What do you do about Japanese knotweed/Himalayan balsam/giant hogweed/ragwort? How do I control it?

The Royal Horticultural Society has some useful advice on controlling Japanese knotweed, Himalayan balsam, giant hogweed and ragwort

We endeavour to control Japanese knotweed, Himalayan balsam and giant hogweed on council land where possible.

Ragwort is poisonous to cattle and horses but is a very important food source for over 70 insect species, around 30 of which use ragwort as their only food source. As a result, we do not remove ragwort from council land unless it is grazed by horses or cattle or near to grazed land.