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Yellow Loosestrife

Lysimachia vulgaris

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Contents

Plant Profile

Flowering Months:
JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC
Order:
Ericales
Family:
Primulaceae (Primrose)
Type:
Flower
Life Cycle:
Perennial
Maximum Size:
120 centimetres tall
Habitats:
Ditches, fens, grassland, marshes, riverbanks, riversides, swamps, waterside, wetland, woodland.

Flower:
Yellow, 5 petals
 
Yellow Loosestrife bears clusters of bright yellow, star-shaped flowers with five pointed petals, blooming from June to August. The flowers are typically arranged in loose terminal spikes or panicles at the tops of tall stems. Each bloom has reddish or orange markings at the base of the petals, which can help distinguish it from other yellow-flowered wetland plants. Though visually striking, these flowers produce little nectar and are mostly pollinated by specialist bees such as Macropis europaea, which collect oil from the plant instead of nectar.
Fruit:
After flowering, the plant produces small, dry, round seed capsules containing numerous tiny seeds. These capsules are not particularly prominent and often go unnoticed unless closely inspected. Seeds are dispersed locally, and the plant also spreads readily by underground rhizomes.
Leaves:
The leaves of Yellow Loosestrife are lanceolate to oval and arranged in opposite pairs or whorls of three to four along the stem. They are untoothed, softly hairy, and pale green with a slight sheen. The leaf veins are prominent, and the foliage often gives the plant a bushy appearance, especially when growing in damp meadows or by streams.
Fragrance:
The flowers of Yellow Loosestrife are lightly fragrant, though the scent is subtle and often only detectable in warm conditions or when the plant is handled. The fragrance is mild and pleasant, helping attract its specialist bee pollinators rather than humans.
Other Names:
Common Loosestrife, Garden Loosestrife, Willow Herb, Willow Weed, Willow Wort.
Frequency (UK):
Common  

Similar Species

Other Information

Summary

Lysimachia vulgaris, also known as garden loosestrife or yellow loosestrife, is a herbaceous perennial plant that is native to Europe and Asia. It is known for its bright yellow flowers that bloom in the summer and its leaves that are lanceolate. It prefers moist soil and can be found in wetland areas such as marshes, swamps, and along the edges of streams and ponds. It can also be grown in gardens and is considered an attractive plant for its bright yellow flowers. It is not considered an invasive species, unlike Lysimachia punctata and Lythrum salicaria which can outcompete native plants and reduce biodiversity in wetlands.

Blog

Yellow Loosestrife, also known as Lysimachia vulgaris, is a beautiful and vibrant flowering plant that is native to Europe and Asia. It is a member of the Primulaceae family and is commonly found growing in wetlands, marshes, and along the banks of streams and ponds.

Appearance

Yellow Loosestrife is a tall and upright plant that can grow up to 4 feet tall. It has lance-shaped leaves that are arranged in opposite pairs along the stem. The leaves are glossy and green, with a slightly hairy texture.

The flowers of Yellow Loosestrife are stunning, with bright yellow petals that are arranged in long, dense spikes. Each flower is about 1 inch in diameter and has five petals that are fused together at the base. The flowers bloom in mid-summer and continue through early fall, attracting pollinators such as bees and butterflies.

Uses

Yellow Loosestrife has a long history of medicinal use, dating back to ancient Greece. The plant was believed to have diuretic and astringent properties, and was used to treat a variety of ailments including kidney and liver disorders, diarrhea, and hemorrhoids.

In addition to its medicinal properties, Yellow Loosestrife is also a popular ornamental plant. Its bright and showy flowers make it a great choice for adding color and interest to a garden. It is also a good choice for planting in wet areas, as it can tolerate waterlogged soil.

Cultivation

Yellow Loosestrife is a relatively easy plant to grow, and is suitable for both beginner and experienced gardeners. It prefers moist, well-drained soil and full sun to partial shade. The plant can be propagated from seed or by division, and should be divided every few years to keep it healthy and vigorous.

While Yellow Loosestrife is a beautiful plant, it can be invasive in some areas. It is important to check with your local extension office or garden center before planting, to ensure that it is not considered a noxious weed in your area.

Ecological Importance

Yellow Loosestrife is an important plant for many wetland ecosystems. Its roots help to stabilize soil, prevent erosion, and improve water quality by filtering out excess nutrients and pollutants. The plant also provides food and habitat for a variety of wildlife, including bees, butterflies, and other pollinators.

Invasive Species

While Yellow Loosestrife is a beautiful and beneficial plant, it has also been identified as an invasive species in some parts of North America. When introduced to non-native habitats, Yellow Loosestrife can outcompete native plants and disrupt local ecosystems. It is important to be aware of the potential for Yellow Loosestrife to become invasive, and to take steps to control its spread if necessary.

Other Uses

In addition to its medicinal and ornamental uses, Yellow Loosestrife has also been used for dyeing fabric. The plant produces a yellow dye that was historically used to color clothing and textiles.

In some parts of Europe, Yellow Loosestrife is also used as a culinary herb. The leaves and flowers can be added to salads, soups, and other dishes for their slightly bitter flavor and nutritional benefits.

Final Thoughts

Yellow Loosestrife is a beautiful and versatile plant that has a long history of use and cultivation. Whether you are looking to add color and interest to your garden, improve the health of a wetland ecosystem, or explore the medicinal or culinary uses of the plant, Yellow Loosestrife is a fascinating and worthwhile plant to learn more about.

More Information...

Yellow Loosestrife has also been used in traditional medicine for its anti-inflammatory, diuretic, and astringent properties. It was used to treat a variety of conditions such as urinary tract infections, liver and kidney problems, digestive disorders, and skin conditions like eczema and psoriasis.

Some studies have also shown that Yellow Loosestrife contains compounds that have potential anti-cancer properties. The plant contains flavonoids, which are known to have antioxidant and anti-inflammatory effects that can help protect against cancer.

Yellow Loosestrife can also be used as a natural insecticide. The plant produces a chemical called lythraceous acid that has been shown to repel and kill insect pests such as aphids and spider mites.

In addition to its practical uses, Yellow Loosestrife has also played a role in folklore and mythology. In ancient Greece, the plant was named after Lysimachus, a king who was said to have used the plant to cure his horses of an illness. In Celtic mythology, Yellow Loosestrife was associated with the goddess Brigid, who was said to have used the plant to heal wounds.

Overall, Yellow Loosestrife is a fascinating and versatile plant with a rich history and a variety of uses. Whether you are interested in its medicinal properties, ecological benefits, or simply its beauty, Yellow Loosestrife is a plant that is worth exploring further. However, it is important to be aware of its potential to become invasive in certain areas and to take appropriate measures to prevent its spread.


Video

Yellow Loosestrife filmed in Adlington, Lancashire on the 7th July 2022.

 

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Distribution Map

Reproduced by kind permission of the BSBI.

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