Belongs to: flowers

Purple loosestrife Lythrum salicaria

Best time to see: Jun to Aug

Key facts

Tall, red-purple whorled spikes in late summer

In damp places, and especially by rivers and ponds; like many wetland plants much less common than it used to be

An invasive plant in parts of North America


The flowers are used in an infusion to treat enteritis and other problems of the intestine

  • Main photo

Photo © Tony Gunton