This Easter, gardeners can check for bad plants. Japanese knotweed is a big problem to get rid of.

There are four more bad plants to watch out for. They look normal but must be removed carefully.

These plants can cause asthma and damage houses.

A company that removes bad plants is warning people to watch out.

One weed grows very fast and stops other plants from growing.

This weed is in southern England and is banned in Scotland.

A tree from China is growing fast in the UK and smells very bad.

If not stopped, it can damage buildings and pipes.

Ragweed is bad for people with allergies. It makes a lot of pollen and can cause asthma.

Ragweed can trigger asthma.

The Devil's Trumpet is a pretty but very poisonous plant.

Some weeds are very dangerous.

The Devil's Trumpet is toxic and can cause serious health problems.

It should never be touched without protection.