You may well have heard of Himalayan Balsam (Impatiens glandulifera) as it increasingly features in our press. Himalayan balsam (Inpatiens glandulifera) is a large annually growing plant that is native to the Himalayan mountains.Due to human introduction, it has now spread across much of the Northern Hemisphere. About. Colonising rail and river banks, wastelands and woodlands, Himalayan balsam was introduced to the British Isles in 1839 by Victorian plant hunters who were keen on its beautiful pink flowers and exploding seed pods. Take care when applying weedkillers near ornamental plants. The main method of non-chemical control, and usually the most appropriate, is pulling or cutting the plants before they flower and set seed. It is a list of products currently available to the home gardener. Plants can grow up to 3m tall, making this the tallest annual species growing wild in the UK. What is Himalayan Balsam? The species is particularly frequent along the banks of watercourses, where it often forms continuous stands. Hedgerow Type. This non native plant, introduced by the Victorians, is quickly becoming more common due to its seed dispersal and as it can grow from seed to two and a half metres in one season can crowd out native plants. It is a non-native, highly invasive weed that damages the habitats it finds itself in by crowding out our native species. Himalayan balsam ( Impatiens glandulifera) is an invasive plant introduced to Britain in the mid 19th Century by Victorian gardeners. Himalayan Balsam (Impatiens glanulifera) is an attractive looking flower, with a stout, hollow stem, trumpet shaped pink/white flowers and elliptical shaped green leaves. Its aggressive seed dispersal, coupled with high nectar production which attracts pollinators, often allow it to outcompete native plants. Glyphosate is most effective when weed growth is vigorous. Roundup Fast Action, Westland Resolva Pro Xtra Tough Weedkiller, SBM Job done General Purpose Weedkiller or Doff Maxi Strength Glyphosate Weedkiller). Himalayan balsam (Impatiens glandulifera) has quickly become one of the UK s most invasive weed species, colonising river banks, waste ground and damp woodlands. Level crossings . We would recommend you also look elsewhere for further information, possibly not covered on these pages. Land managers often give up when faced with controlling Himalayan balsam over a large area due to the inaccessible places where the plant grows. Introduced to the UK in 1839, Himalayan balsam is now a naturalised plant, found especially on riverbanks and in waste places where it has become a problem weed. It escaped into the wild and is now recorded throughout the UK, particularly along the banks of watercourses. Growing and spreading rapidly, it successfully competes with native plant species for space, light, nutrients and pollinators, and … It prefers moist soils but will grow anywhere. If you […] Top updates. Cover them with plastic sheeting while spraying, and only remove it once the spray has dried on the weed foliage. The Royal Horticultural Society is the UK’s leading gardening charity. It may take a couple of seasons to obtain good control of Himalayan balsam, as additional weed seedlings germinate after the parent plants are killed off. Inclusion of a weedkiller product does not indicate a recommendation or endorsement by the RHS. Himalayan balsam grows in dense clumps and is a herbaceous annual plant, which is easily identifiable when mature. Commonly found along riverbanks and streams, around ponds and lakes, in wet woodlands and in ditches and damp meadows. If you've ever wandered along a riverbank, pond or lake, we guarantee you will have seen it at least once! Weeds: non-chemical control, Join Chemical control Users must be aware of the risks involved when using chemicals to control any plant especially as it tends to grows near water. 0 ← Back. It prefers moist soils but will grow pretty much anywhere. Himalayan Balsam was introduced to the UK in 1839 as a greenhouse and warm garden plant and, within a few years had escaped into the wild. Himalayan balsam grows and spreads quickly on river banks, waste ground and damp woodlands. These seeds are stored in fruit capsules at the top of the plant, which when mature or prodded explode, spreading them far into the air and over a wide area (up to seven metres). Himalayan Balsam is not toxic to humans, although some people may be allergic to its pollen. Himalayan Balsam can spread extremely rapidly thanks to the huge amount of seeds it can produce. As such, it is an offence to plant or otherwise allow it to grow in the wild. times, National Association of Agricultural and Amenity Contractors, Chemicals: using spot and broad-scale weedkillers, RHS Registered Charity no. This plant is the least harmful of our three main invasive species. The flowers are followed by seed pods that open explosively when ripe. Choose a weedkiller that is most appropriate for the purpose by reading the label carefully before buying or using. Himalayan balsam is native to the foothills of the Himalayas, India and Pakistan, and was first released into the UK in 1839 as an ornamental garden plant. Himalayan balsam can be controlled with a weedkiller based on glyphosate (e.g. Please contact the site manager if you have contributions or questions. Q6: Why is Himalayan balsam an invasive species? Weedkillers for gardeners (Adobe Acrobat pdf document outlining weedkillers available to gardeners; see sections 3 and 4), Chemicals: using a sprayer Himalayan Balsam was added to Schedule 9 of the Wildlife and Countryside Act 1981 in April 2009 in Wales and England. It is fast-growing and spreads quickly, invading wet habitat at the expense of other, native flowers. How to identify: it grows up to 2-3m in height; it has red-tinged stems and green leaves; purplish pink flowers from June to October. Himalayan balsam grows up to 3 metres high with a hollow and bamboo-like … The plants grow densely and stop the growth of other plants and grasses. Himalayan balsam (Impatiens glandulifera) is an introduced summer annual that has naturalised in the UK, mainly along riverbanks and ditches. We aim to make this as useful as possible for people to go out an make a difference locally, and we need all the help we can get. 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