The Himalayan Balsam is a very adaptable survivor, to the rear of my border in amongst the Atlantic Delpiniums, (which I've removed the flower stems from as they are over and done with,) there are maybe a hundred HB's, but they are only max 18 inches tall and single stemmed, yet over in the wet ground with the montbretia (now there's a plant you cant get rid of) and the various flavours of mints and aqualigia … Himalayan Balsam regrows annually from the seeds which are viable for 2 years therefore any control ... Leaves Green large narrow leaves with serrate edges. The shallow roots allow the plant to be pulled up right up to June when it flowers. Within ten years, however, Himalayan balsam had escaped from the confines of cultivation and begun to spread along the river systems of England.[17]. Impatiens glandulifera Royle", "Himalayan balsam, Impatiens glandulifera Geraniales: Balsaminaceae", "The potential influence of the invasive plant, Impatiens glandulifera (Himalayan Balsam), on the ecohydromorphic functioning of inland river systems", "The influence of an invasive plant species on the pollination success and reproductive output of three riparian plant species", "Identification Guide for Alberta Invasive Plants", "CABI releases rust fungus to control invasive weed, Himalayan balsam", Centre for Ecology and Hydrology: Centre for Aquatic Plant Management, Identifying and removing Himalayan Balsam, The UK Environment Agency's guide to managing invasive non-native plants, https://en.wikipedia.org/w/index.php?title=Impatiens_glandulifera&oldid=993155731, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 December 2020, at 02:13. Differences. Guidance notes for the use of herbicides in or near water. [5], The plant was rated in first place for per day nectar production per flower in a UK plants survey conducted by the AgriLand project which is supported by the UK Insect Pollinators Initiative. Stems are hollow. Webb, D.A., Parnell, J. and Doogue, D. 1996. The green seed pods, seeds, young leaves and shoots are all edible. Plants must be cut below the lowest node to avoid reflowering. Impatiens glandulifera is a large annual plant native to the Himalayas. It is illegal to move soil which contains its seeds and accidentally spreading them and its … As an annual it has a very shallow root system, barely adequate for its tremendous height. For the uniform cover, see. The first indications that this would be a potentially invasive plant were the county Floras showing Himalayan Balsam tracing the line of waterways through the counties. Below the leaf stems the plant has glands that produce a sticky, sweet-smelling, nectar. The seeds of Himalayan Balsam are viable for up to two years and are commonly transported in waterways. The crushed foliage has a strong musty smell. Himalayan balsam also promotes river bank erosion due to the plant dying back over winter, leaving the bank unprotected from flooding. Himalayan Balsam (Impatiens glanulifera) is an attractive looking flower, with a stout, hollow stem, trumpet shaped pink/white flowers and elliptical shaped green leaves. Plants have a thick, much branched, purple to reddish tinged stems. Riparian habitat is suboptimal for I. glandulifera, and spring or autumn flooding destroys seeds and plants. Because of the colour and type of the stem it has occasionally been mistaken by the uninitiated for Japanese knotweed. 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 produces seedpods which explode when ripe spreading the seeds up to … Despite its large size its root system is fairly shallow, only to about fifteen centimetres deep. It prefers moist soils but will grow anywhere. In terms of the negative pollinator effect with Himalayan balsam, there is evidence to suggest the opposite, that there is what they call an adjacent benefit, so that other native riparian riverside species that are flowering at the same time receive more visits rather than less when they’re kind of in the same area as Himalayan balsam, Himalayan being super popular with honeybees and … Spraying needs to occur before the plant starts to flower but after the seed leaves have disappeared – from April to June to ensure that all the plants available for germination can be controlled. How to get rid of Himalayan Balsam. The aeciospores are spread by wind and rain, and infect the leaves of Himalayan balsam. Characteristics of Himalayan Balsam Himalayan Balsam is a large plant, normally reaching 1 to 2 metres in height, although in some cases it can grow as tall as 2.5 metres. [20], The Royal Horticultural Society and the Centre for Ecology and Hydrology recommend that pulling and cutting is the main method of non-chemical control, and usually the most appropriate. The genus name Impatiens, meaning "impatient", refers to its method of seed dispersal. Its aggressive seed dispersal, coupled with high nectar production which attracts pollinators, often allow it to outcompete native plants. Due to its seasonal nature, Himalayan balsam can leave entire stretches of riverbanks bare during the winter, leaving the area more susceptible to land erosion. The aeciospores enter the leaf through the stomata in a film of water, produced by dew or rain, and develop within the leaf feeding on the internal cells. Himalayan balsam tolerates low light levels and also shades out other vegetation, so gradually impoverishing habitats by killing off other plants. © 2020 Agrovista UK Ltd - Pitchcare.com is a trading name of Agrovista UK Ltd, a company registered in England and Wales. Himalayan balsam is an annual plant (it completes its lifecycle within one year), which grows to 2m tall with rough, reddish stems, shiny oval leaves about 15cm long with a red vein, and bright purple-pink flowers from June-September. During flood events the river banks are then vulnerable to floodwater because of the lack of perennial plants. If all goes well, the project will have it financing its own eradication. Stem Hollow, sappy, and brittle stems. The species name glandulifera comes from the Latin words glándula meaning 'small gland', and ferre meaning 'to bear', referring to the plant's glands. Be used in jellies and wines edges and are used in jellies and wines its own eradication or autumn destroys. 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