Rosebay willowherb | The Wildlife Trusts (2024)

A tall plant, Rosebay willowherb is a successful coloniser; it can form dense stands of bright pink flower spikes on disturbed ground, such as woodland clearings, verges and waste ground.

About

The tall, pink flower spikes of Rosebay willowherb can often be seen crowding together in thick stands in open spaces, such as woodland clearings, roadside verges, grassland and waste ground. A successful coloniser, Rosebay willowherb has grown in number from a scarce woodland plant to a ubiquitous flower. This expansion occurred as a result of two World Wars clearing huge areas of forest and burning the ground in both town and countryside - just the right conditions for this plant to thrive in. One of its common names in the South East, 'Bombweed', alludes to this takeover.

How to identify

Rosebay willowherb is a tall plant with pink flowers rising up a flower spike. It has lance-like leaves that are arranged in spiral formation up its stem.

Distribution

Widespread.

Did you know?

Rosebay willowherb is able to colonise new areas because of its specially adapted seeds - fitted with tiny, cottony 'parachutes' they are able to disperse across long distances on the slightest breeze. Each plant can produce up to 80,000 seeds and the heat from fires and bonfires can help to germinate them, hence another common name of 'Fireweed'.

How people can help

Although they might not look especially wildlife-friendly, our roadside verges, railway cuttings and waste grounds can provide valuable habitats for all kinds of plants and animals. The Wildlife Trusts are involved in many projects to make these places as beneficial for wildlife as possible. We have a vision of a Living Landscape: a network of habitats stretching across town and country that allow wildlife to move about freely and people to enjoy the benefits of nature. Support this greener vision for the future by joining your local Wildlife Trust.

Rosebay willowherb | The Wildlife Trusts (2024)

FAQs

Should I remove willowherb? ›

Due to the fact that this plant spreads through its root system, any fragment of root or rhizome left behind could cause a new plant to grow. Alongside this, due to the highly invasive nature of these plants, they should not be disposed of off-site so would need to be destroyed on-site.

What are the benefits of rosebay willowherb? ›

Rosebay willowherb is said to have more vitamin C than rosehips (which has up to 8 times more vitamin C than lemons), as well as contain magnesium and B vitamins and is supportive to the function of the heart and the immune system as well as being caffeine-free. So it's not just a men's tea!

Is rosebay willowherb poisonous? ›

It also has large pale-green lance-shaped leaves. This plant is deadly poisonous, containing the toxin digitalis, which can lead to serious gastrointestinal pain and heart failure if ingested.

How does rosebay willowherb spread? ›

Seeds have a plume of hairs and are wind dispersed. It has been estimated that 20 to 50% of seeds may be carried 100 m by the wind and some could potentially travel over 100 km. Rosebay willowherb also spreads by the horizontal roots on which adventitious buds develop.

Is Willowherb poisonous to dogs? ›

🐶 Purpleleaf Willowherb is not toxic to dogs, but caution is advised. 🚨 Watch for vomiting, diarrhea, drooling if your dog nibbles on plants. 🌿 Prevent plant snacking with training and physical barriers.

What is the difference between Willowherb and rosebay willowherb? ›

However, the leaves of Rosebay Willowherb are much thinner and the flowers of other Willowherbs and Purple Loosestrife lack the visible, skinny purple sepals through the spoon-shaped petals. Use in herbal medicine Has been used to treat inflammatory bowel disorders and constipation.

What is Willowherb used for? ›

Willow herb is antispasmodic, astringent, demulcent, emollient, laxative and a tonic. A tea made from the leaves and roots is a folk remedy for gastro-intestinal and bronchial complaints. In Germany and Austria the plant is used to treat prostate problems.

Can you eat rosebay willowherb flowers? ›

After pollination, seed pods develop that split revealing a white “fluff”, within which the seeds are carried on the wind. The young shoots can be steamed and eaten like asparagus, and the leaves can be added to salads. However, raw leaves can be bitter. The flowers can also be added to salads and are less bitter.

What does Willowherb do for skin? ›

Soothing Effects: Due to its natural calming properties, Willowherb is often used in skincare products designed to alleviate redness, itchiness, and discomfort. It can be particularly useful for individuals with sensitive skin prone to reactions.

What is another name for Rosebay Willowherb? ›

Chamaenerion angustifolium is a perennial herbaceous flowering plant in the willowherb family Onagraceae. It is known in North America as fireweed and in the British Isles as rosebay willowherb. It is also known by the synonyms Chamerion angustifolium and Epilobium angustifolium.

What is the difference between Fireweed and willowherb? ›

Tall willowherb (Epilobium brachycarpum), also known as panicled willowherb, is a close lookalike at first glance. But its leaves are shorter and more dense, and the long edges often seem to roll up toward the center, whereas fireweed's leaves tend to be flatter.

What is small flowered willow herb good for? ›

Small flowered willow herb is also a remedial herb for anyone suffering any kidney ailment, including cystitis, bladder problems or bed-wetting.

What can you do with Willowherb? ›

The very young shoots can be treated like asparagus and served with butter and lemon, the older leaves get very bitter. Young leaves can be added to salads. The soft inner part of the stem can be easily removed and used as a thickener for soups or stews. The flowers can be used to brighten a salad.

What does Willowherb do? ›

Helps skin rebound from dullness

Often one of the first plants to bloom after forest fires, Willowherb is incredibly resilient and used in skincare to help skin rebound from dullness.

What is the benefit of American Willowherb? ›

Its leaves and stems contain compounds that have anti-inflammatory and antioxidant properties, making it a valuable plant for medicinal purposes. Traditional cultures in North America have used American Willowherb for the treatment of respiratory problems and skin irritations, among other conditions.

Is American Willowherb invasive? ›

Willowherbs are native broadleaf plants but usually require a disturbance to establish. Although considered desirable members of natural habitats, they can be weedy in managed urban and agricultural sites.

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