Purple-loosestrife

Scientific Name: 
Lythrum salicaria

Purple-loosestrife can be found in wet habitats such as reedbeds, fens, marshes and riverbanks, where its impressive spikes of magenta flowers rise up among the grasses. Many tall stems can grow from a single root stock. It flowers between June and August when its nectar becomes a valuable food source for long-tongued insects like bees, moths and butterflies, including Brimstones, Red-tailed Bumblebees and Elephant Hawk-moths.

How to identify: 
Purple-loosestrife has tall, pink flower spikes and long green leaves in opposite pairs up the stem.
Where to find it: 
Widespread across the UK, but less common in Scotland.
How people can help: 

Human activity, including the drainage of land for agriculture and development, has resulted in the disappearance of many of the UK's wetlands. The Wildlife Trusts are working closely with planners, developers and farmers to ensure our wetlands are protected and managed for the benefit of the plants and animals they hold, including Purple-loosestrife. We have a vision of a 'Living Landscape': a network of habitats and wildlife corridors across town and country, which are good for both wildlife and people. You can support this greener vision for the future by joining your local Wildlife Trust.

Statistics: 
Height: up to 1.5m
Conservation status: 
Common.
Did you know?: 
Introduced into North America in the 19th century, Purple-loosestrife is now an invasive weed, forming impenetrable stands which are unsuitable as cover for native animals and shade out native plants.
Seasons: 
Summer
When to see
Start date: 
June
End date: 
August
Image: 
Purple-loosestrife - Les Binns