A shrub or bush is a small-to-medium-sized perennial woody plant . Unlike herbaceous plants , shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple stems and shorter height , less than 6–10 m (20–33 ft) tall. Small shrubs, less than 2 m (6.6 ft) tall are sometimes termed as subshrubs . Many botanical groups have species that are shrubs, and others that are trees and herbaceous plants instead.
43-609: 158; see text Honeysuckles are arching shrubs or twining vines in the genus Lonicera ( / l ɒ ˈ n ɪ s ər ə / ) of the family Caprifoliaceae . It includes 158 species native to northern latitudes in North America, Eurasia , and North Africa. Widely known species include Lonicera periclymenum (common honeysuckle or woodbine), Lonicera japonica (Japanese honeysuckle, white honeysuckle, or Chinese honeysuckle) and Lonicera sempervirens (coral honeysuckle, trumpet honeysuckle, or woodbine honeysuckle). L. japonica
86-466: A " stool ", removes everything but vital parts of the plant, resulting in long new stems known as "canes". Other shrubs respond better to selective pruning to dead or unhealthy, or otherwise unattractive parts to reveal their structure and character. Shrubs in common garden practice are generally considered broad-leaved plants , though some smaller conifers such as mountain pine and common juniper are also shrubby in structure. Species that grow into
129-549: A Renaissance botanist. Most species of Lonicera are hardy twining climbers, with a minority of shrubby habit . Some species (including Lonicera hildebrandiana from the Himalayan foothills and L. etrusca from the Mediterranean) are tender and can be grown outside only in subtropical zones. The leaves are opposite, simple oval, 1–10 cm (0.39–3.94 in) long; most are deciduous but some are evergreen . Many of
172-541: A basis for continued learning or training. As for Level 2, there are theoretical- and practical-based qualifications at Level 3 and a Diploma that combines both. The Master of Horticulture (RHS) Award is the society's most prestigious professional horticultural qualification. It is of degree level and it is intended for horticultural professionals. The course allows for flexible study over a period of three years or more. The RHS Campaign for School Gardening provides online inspiration, resources and advice to its members. With
215-432: A foundation for further RHS practical qualifications at Levels 2 and 3. It is aimed at anyone who has an interest in plants and gardening. Level 2 qualifications provide a basis for entry into professional horticulture, support career development for existing horticultural workers or can provide a foundation for further learning or training. There are separate theoretical- and practical-based qualifications at this Level and
258-666: A monthly publication. The RHS also publishes both The Plant Review and The Orchid Review four times a year, and Hanburyana , an annual publication dedicated to horticultural taxonomy since 2006. Since the establishment of International Registration Authorities for plants in 1955 the RHS has acted as Registrar for certain groups of cultivated plants. It is now Registrar for nine categories – conifers , clematis , daffodils , dahlias , delphiniums , dianthus , lilies , orchids and rhododendrons . It publishes The International Orchid Register, an extensive listing of orchid hybrids, and
301-529: A rapidly increasing number of digital images. Although most of the images have been supplied by photographers commissioned by the RHS, the archive includes a substantial number of slides from the Harry Smith Collection and Plant Heritage National Plant Collection holders. The libraries in each of the gardens are open to all visitors. RHS members can borrow books from the Lindley London, as well as
344-456: A reasonable length beforehand. Many trees can grow in multiple stemmed forms also while being tall enough to be trees, such as oak or ash . An area of cultivated shrubs in a park or a garden is known as a shrubbery . When clipped as topiary , suitable species or varieties of shrubs develop dense foliage and many small leafy branches growing close together. Many shrubs respond well to renewal pruning , in which hard cutting back to
387-512: A shrubby habit may be either deciduous or evergreen . In botany and ecology , a shrub is more specifically used to describe the particular physical canopy structure or plant life-form of woody plants which are less than 8 metres (26 ft) high and usually multiple stems arising at or near the surface of the ground. For example, a descriptive system widely adopted in Australia is based on structural characteristics based on life-form, plus
430-399: A small number of shrubs have culinary usage. Apart from the several berry -bearing species (using the culinary rather than botanical definition), few are eaten directly, and they are generally too small for much timber use unlike trees. Those that are used include several perfumed species such as lavender and rose , and a wide range of plants with medicinal uses. Tea and coffee are on
473-404: A vast educational programme. It also supports training for professional and amateur gardeners. As of 2023 the president was Keith Weed and the director general was Clare Matterson CBE. The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood ) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members
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#1732859597144516-504: Is a highly invasive species considered a significant pest in parts of North America, Europe, South America, Australia, and Africa. Some species are highly fragrant and colorful, so are cultivated as ornamental garden plants. In North America, hummingbirds are attracted to the flowers, especially L. sempervirens and L. ciliosa (orange honeysuckle). Honeysuckle derives its name from the edible sweet nectar obtainable from its tubular flowers. The name Lonicera stems from Adam Lonicer ,
559-519: Is the natural landscape dominated by various shrubs; there are many distinct types around the world, including fynbos , maquis , shrub-steppe , shrub swamp and moorland . In gardens and parks, an area largely dedicated to shrubs (now somewhat less fashionable than a century ago) is called a shrubbery , shrub border or shrub garden. There are many garden cultivars of shrubs, bred for flowering, for example rhododendrons , and sometimes even leaf colour or shape. Compared to trees and herbaceous plants,
602-412: Is the principal award made to garden plants by the society after a period of assessment by the appropriate committees of the society. Awards are made annually after plant trials. Older books may contain references to the following awards, which were based mainly on flower or fruit quality (but which are not referred to in current (2014) RHS websites and reports): The society published its proceedings as
645-687: The Miocene of Asia. Shrub Some define a shrub as less than 6 m (20 ft) and a tree as over 6 m. Others use 10 m (33 ft) as the cutoff point for classification. Many trees do not reach this mature height because of hostile, less than ideal growing conditions, and resemble shrub-sized plants. Others in such species have the potential to grow taller in ideal conditions. For longevity, most shrubs are classified between perennials and trees. Some only last about five years in good conditions. Others, usually larger and more woody, live beyond 70. On average, they die after eight years. Shrubland
688-721: The Transactions of the Horticultural Society of London from 1807 to 1848. The society has also published a journal since 1846. Initially known as the Journal of the Horticultural Society of London (1846–1855), then Proceedings of the Horticultural Society of London (1859–1860) and Proceedings of the Royal Horticultural Society (1861–1869). This was continued as Journal of the Royal Horticultural Society (1866–1975). Since 1975 it has been entitled The Garden as
731-617: The Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show , Hampton Court Palace Flower Show , Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and
774-529: The Northern Horticultural Society's trial ground and display garden since they bought it in 1949. In 2013, more than 1.63 million people visited the four gardens. In 2015 the RHS announced plans for a fifth garden at Worsley New Hall , Greater Manchester, under the name RHS Garden Bridgewater . The garden opened in May 2021. The RHS is well known for its annual flower shows which take place across
817-630: The RHS (as it had now become) developed a new garden at South Kensington on land leased from the Royal Commission for the Exhibition of 1851 (the Science Museum , Imperial College and the Royal College of Music now occupy the site), but it was closed in 1882. The Chiswick garden was maintained until 1903–1904, by which time Sir Thomas Hanbury had bought the garden at Wisley and presented it to
860-521: The RHS Level 2 Diploma in the Principles and Practices of Horticulture combines the theoretical- and practical-based qualifications. Level 3 qualifications allow specialisation in the candidate's area of interest. They can offer proficiency for those looking for employment in horticulture, they can support further career and professional development for those already working in the field, or they can provide
903-416: The RHS. RHS Garden Wisley is thus the society's oldest garden. Rosemoor came next, presented by Lady Anne Berry in 1988. Hyde Hall was given to the RHS in 1993 by its owners Dick and Helen Robinson. Dick Robinson was also the owner of the Harry Smith Collection which was based at Hyde Hall. Then came Harlow Carr, acquired by the merger of the Northern Horticultural Society with the RHS in 2001. It had been
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#1732859597144946-513: The Secretary of the new society. Banks proposed his friend Thomas Andrew Knight for membership. The proposal was accepted, despite Knight's ongoing feud with Forsyth over a plaster for healing tree wounds which Forsyth was developing. Knight was president of the society from 1811 to 1838, and developed the society's aims and objectives to include a programme of practical research into fruit-breeding. In 2009 more than 363,000 people were members of
989-656: The UK. The most famous of these shows is the RHS Chelsea Flower Show , visited by people from across the world. This was followed by the Hampton Court Palace Flower Show (which the RHS took over in 1993) and RHS Tatton Park Flower Show in Cheshire (since 1999). In 2024 the line up expanded to include the Malvern Spring Festival, Garden Hyde Hall Flower Show, Garden Rosemoor Flower Show and
1032-703: The United States in 1806, and it was widely cultivated by the 1860s. It was first discovered in Canada in Ontario forests in 1976, and became invasive by 2007. L. japonica was introduced in Australia between 1820 and 1840. Several species of honeysuckle have become invasive when introduced outside their native range, particularly in North America, Europe, South America, Australia, and Africa. Invasive species include L. japonica , L. maackii , L. morrowii , L. tatarica , and
1075-609: The Victoria Medal of Honour). As of 2022 there were also the Harlow Carr Medal (for significant contribution to horticulture in the north of England), Reginald Cory Memorial Cup (for introducing new hybrid plants developed from existing garden plants), Community Award (for long-term contribution to community gardening ) and the Roy Lancaster Award (for exceptional contribution by those under 35 years old). Medals issued by
1118-497: The berries are mildly poisonous , but in a few (notably Lonicera caerulea ) they are edible and grown for home use and commerce. Most honeysuckle berries are attractive to wildlife, which has led to species such as L. japonica and L. maackii spreading invasively outside of their home ranges. Many species of Lonicera are eaten by the larvae of some Lepidoptera species—see a list of Lepidoptera that feed on honeysuckles. The spread of L. japonica in North America began in
1161-503: The dense, small-leaved L. nitida are used as low, narrow hedges. The following hybrids have gained the Royal Horticultural Society 's Award of Garden Merit : Other cultivars are dealt with under their species names. The honeysuckle species L. japonica is grown as a commercial crop for traditional Chinese medicine use. Honeysuckle is also used to scent Chinese teas in a process similar to Jasmine tea . This
1204-671: The first RHS Urban Show The society is also closely involved with BBC Gardeners' World Live held annually at the Birmingham National Exhibition Centre . The RHS is custodian of the Lindley Library , housed within its headquarters at 80 Vincent Square , London, and in branches at each of its four gardens. The library is based upon the book collection of John Lindley . The RHS Herbarium has its own image library (collection) consisting of more than 3,300 original watercolours, approximately 30,000 colour slides and
1247-470: The height and amount of foliage cover of the tallest layer or dominant species . For shrubs that are 2–8 metres (6.6–26.2 ft) high, the following structural forms are categorized: For shrubs less than 2 metres (6.6 ft) high, the following structural forms are categorized: Those marked with * can also develop into tree form if in ideal conditions. Royal Horticultural Society The Royal Horticultural Society ( RHS ), founded in 1804 as
1290-573: The help of teachers, volunteers and other school-gardening champions, they support millions of students in the UK, giving them the opportunity to grow plants, food and develop life skills. The society honours certain British persons who are deemed by its council to be deserving of special recognition in the field of horticulture with the Victoria Medal of Honour , established in 1897. There are only 63 holders of this medal at any time, one for every year of
1333-441: The hybrid between the last two, L. × bella . Honeysuckles are valued as garden plants, for their ability to cover unsightly walls and outbuildings, their profuse tubular flowers in early summer, and the intense fragrance of many varieties. The hardy climbing types need their roots in shade, and their flowering tops in sunlight or very light shade. Varieties need to be chosen with care, as they can become substantial. Cultivars of
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1376-951: The libraries at Wisley Garden and Harlow Carr Garden . In 2002, the RHS took over the administration of the Britain in Bloom competition from the Tidy Britain Group (formerly and subsequently Keep Britain Tidy ). In 2010, the society launched 'It's your neighbourhood', a campaign to encourage people to get involved in horticulture for the benefit of their community. In 2014, 'Britain in Bloom' celebrated its 50th anniversary. The RHS runs formal courses for professional and amateur gardeners and horticulturalists and also validates qualifications gained elsewhere (e.g. at Kew Botanic Gardens ). The RHS Level 1 Award in Practical Horticulture aims to develop essential horticultural skills and to provide
1419-457: The opportunity to present papers on their horticultural activities and discoveries, to encourage discussion of them, and to publish the results. The society would also award prizes for gardening achievements. Wedgwood discussed the idea with his friends, but it was four years before the first meeting, of seven men, took place, on 7 March 1804 at Hatchards bookshop in Piccadilly , London. Wedgwood
1462-543: The plant world into trees, shrubs and herbs. Small, low shrubs, generally less than 2 m (6.6 ft) tall, such as lavender , periwinkle and most small garden varieties of rose , are often termed as subshrubs . Most definitions characterize shrubs as possessing multiple stems with no main trunk below. This is because the stems have branched below ground level. There are exceptions to this, with some shrubs having main trunks, but these tend to be very short and divide into multiple stems close to ground level without
1505-555: The reign of Queen Victoria . Since 2023, the society has handed out the Elizabeth Medal of Honour , for which there could be only 70 holders at any time, one for every year of the reign of Queen Elizabeth II . Thus, neither of the aforementioned medals are awarded every year Other awards bestowed by the society include the Associate of Honour (established in 1930) where the number does not exceed 100 at any time (unless they also hold
1548-590: The society earlier in its history have included the Banksian, Knightian and Lindley medals, named after early officers of the society, as well as Honorary Fellowships. The Veitch Memorial Medal , named after James Veitch , is awarded annually to persons of any nationality who have made an outstanding contribution to the advancement and improvement of the science and practice of horticulture. The society awards Gold, Silver-gilt, Silver and Bronze medals to exhibitors at its Flower Shows. The Award of Garden Merit , or AGM,
1591-1034: The society, and the number increased to more than 414,000 in 2013 and to 525,105 by 2019. Membership and fellowship of the society were previously decided by election, but are now by financial contribution. Fellows are supporters "contributing a suggested £5,000 per annum" (as of 2022). Members and Fellows of the Royal Horticultural Society are entitled to use the post-nominal letters MRHS and FRHS , respectively. The Royal Horticultural Society's five major gardens in England are: Wisley Garden , near Wisley in Surrey ; Rosemoor Garden in Devon ; Hyde Hall in Essex ; Harlow Carr in Harrogate , North Yorkshire and RHS Garden, Bridgewater in Worsley , Greater Manchester . The society's first garden
1634-503: The sour taste and tartness. Some 51 of the same compounds in berries are found in flowers, although the proportions of these compounds varied among cultivars studied. Many insects in the order Lepidoptera visit honeysuckles as a food source. An example of this is the moth Deilephila elpenor . This nocturnal species of moth is especially attracted to honeysuckles, and they visit the flowers at night to feed on their nectar. 158 species are accepted. Several fossil species are known from
1677-509: The species have sweetly scented, bilaterally symmetrical flowers that produce a sweet, edible nectar , and most flowers are borne in clusters of two (leading to the common name of "twinberry" for certain North American species). Both shrubby and vining sorts have strongly fibrous stems which have been used for binding and textiles. The fruit is a red, blue or black spherical or elongated berry containing several seeds; in most species
1720-525: The tree-shrub boundary; they are normally harvested from shrub-sized plants, but these would be large enough to become small trees if left to grow instead. Shrubs are perennial woody plants, and therefore have persistent woody stems above ground (compare with succulent stems of herbaceous plants ). Usually, shrubs are distinguished from trees by their height and multiple stems. Some shrubs are deciduous (e.g. hawthorn ) and others evergreen (e.g. holly ). Ancient Greek philosopher Theophrastus divided
1763-528: Was chairman; also present were William Townsend Aiton (successor to his father, William Aiton , as Superintendent of Kew Gardens ), Sir Joseph Banks (President of the Royal Society ), James Dickson (a nurseryman), William Forsyth (Superintendent of the gardens of St. James's Palace and Kensington Palace ), Charles Francis Greville (a Lord of the Admiralty ) and Richard Anthony Salisbury , who became
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1806-580: Was in Kensington , from 1818 to 1822. In 1820 the society leased some of Hugh Ronalds ' nursery ground at Little Ealing to set up an experimental garden, but the next year part of the Duke of Devonshire 's estate at Chiswick was obtained. In 1823 it employed Joseph Paxton there. From 1827 the society held fêtes at the Chiswick garden, and from 1833, shows with competitive classes for flowers and vegetables. In 1861
1849-473: Was popularized in the Qing dynasty . Component analyses of berries from 27 different cultivars and 3 genotypes of edible honeysuckle ( Lonicera caerulea var. kamtschatica ) showed the presence of iridoids , anthocyanins , flavonols , flavanonols , flavones , flavan-3-ols , and phenolic acids . While sugars determine the level of sweetness in the berries, organic acids and polyphenols are responsible for
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