The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity.
Dryas octopetala, the mountain avens, eightpetal mountain-avens, white dryas or white dryad, is an Arctic–alpine flowering plant in the family Rosaceae. It is a small prostrate evergreen subshrub forming large colonies. The specific epithet octopetala derives from Greek octo 'eight' and petalon 'petal', referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However, flowers with up to 16 petals also occur naturally.
Petunia is a genus of 20 species of flowering plants of South American origin. The popular flower of the same name derived its epithet from the French, which took the word pétun, 'tobacco', from a Tupi–Guarani language. A tender perennial, most of the varieties seen in gardens are hybrids.
Geum, commonly called avens, is a genus of about 50 species of rhizomatous perennial herbaceous plants in the rose family and its subfamily Rosoideae, widespread across Europe, Asia, North and South America, Africa, and New Zealand. They are closely related to Potentilla and Fragaria. From a basal rosette of leaves, they produce flowers on wiry stalks, in shades of white, red, yellow, and orange, in midsummer. Geum species are evergreen except where winter temperatures drop below 0 °F (−18 °C). The cultivars 'Lady Stratheden', and 'Mrs J. Bradshaw' have gained the Royal Horticultural Society's Award of Garden Merit.
Alstroemeria, commonly called the Peruvian lily or lily of the Incas, is a genus of flowering plants in the family Alstroemeriaceae. They are all native to South America, although some have become naturalized in the United States, Mexico, Australia, New Zealand, Madeira and the Canary Islands. Almost all of the species are restricted to one of two distinct centers of diversity; one in central Chile, the other in eastern Brazil. Species of Alstroemeria from Chile are winter-growing plants, while those of Brazil are summer growing. All are long-lived perennials except A. graminea, a diminutive annual from the Atacama Desert of Chile.
Fritillaria meleagris is a Eurasian species of flowering plant in the lily family Liliaceae. Its common names include snake's head fritillary, snake's head, chess flower, frog-cup, guinea-hen flower, guinea flower, leper lily, Lazarus bell, chequered lily, chequered daffodil, drooping tulip or, in the British Isles, simply fritillary. The plant is a bulbous perennial native to the flood river plains of Europe where it grows in abundance.
Dryas is a genus of perennial cushion-forming evergreen dwarf shrubs in the family Rosaceae, native to the arctic and alpine regions of Europe, Asia and North America. The genus is named after the dryads, the tree nymphs of ancient Greek mythology. The classification of Dryas within the Rosaceae has been unclear. The genus was formerly placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae.
Saxifraga is the largest genus in the family Saxifragaceae, containing about 473 species of holarctic perennial plants, known as saxifrages or rockfoils. The Latin word saxifraga means literally "stone-breaker", from Latin saxum + frangere. It is usually thought to indicate a medicinal use for treatment of urinary calculi, rather than breaking rocks apart.
Amaryllis belladonna, the Jersey lily, belladonna-lily, naked-lady-lily, or March lily, is a plant species native to Cape Province in South Africa but widely cultivated as an ornamental. It is reportedly naturalized in many places: Corsica, Portugal, the Azores, Madeira, the Canary Islands, the Scilly Isles of Great Britain, the Democratic Republic of the Congo, Ascension Island, Australia, New Zealand, Mexico, Cuba, Haiti, the Dominican Republic, Chile, California, Texas, Louisiana, Mississippi, Michigan and the Juan Fernández Islands.
Tagetes patula, the French marigold, is a species of flowering plant in the family Asteraceae, native to Mexico and Guatemala with several naturalised populations in many other countries. It is widely cultivated as an easily grown bedding plant, with thousands of different cultivars in brilliant shades of yellow and orange.
Hedychium is a genus of flowering plants in the ginger family Zingiberaceae, native to lightly wooded habitats in Asia. There are approximately 70-80 known species, native to India, Southeast Asia, and Madagascar. Some species have become widely naturalized in other lands, and considered invasive in some places.
Streptocarpus is an Afrotropical genus of flowering plants in the family Gesneriaceae. The genus is native to Afromontane biotopes from central, eastern and southern Africa, including Madagascar and the Comoro Islands. The flowers are five-petalled, salverform tubes, almost orchid-like in appearance, and hover or arch over the plant, while the pointed, elongate fruit is of a helical form similar to that of the "tusk" of a narwhal. In the wild, species can be found growing on shaded rocky hillsides or cliffs, on the ground, in rock crevices, and almost anywhere the seed can germinate and grow. For the home, there are now many hybrids of various colours and forms available.
The Victoria Medal of Honour (VMH) is awarded to British horticulturists resident in the United Kingdom whom the Royal Horticultural Society Council considers deserving of special honour by the Society.
Sanguisorba officinalis, commonly known as great burnet, is a plant in the family Rosaceae, subfamily Rosoideae. It is native throughout the cooler regions of the Northern Hemisphere in Europe, northern Asia, and northern North America.
Geum triflorum, commonly known as prairie smoke, old man's whiskers, torchflower, three-sisters, long-plumed purple avens, lion's beard, or three-flowered avens, is a spring-blooming perennial herbaceous plant of the Rosaceae family. It is a hemiboreal continental climate species that is widespread in colder and drier environments of western North America, although it does occur in isolated populations as far east as New York and Ontario. It is particularly known for the long feathery plumes on the seed heads that have inspired many of the regional common names and aid in wind dispersal of its seeds.
Geum coccineum is a species of flowering plant in the genus Geum, in the rose family Rosaceae. Native to the mountains of the Balkans and northern Turkey, it is also grown ornamentally for its bright red flowers.
Jovellana violacea, also known as the violet teacup flower or violet slipper flower, is a perennial species of flowering plant in the family Calceolariaceae. It is native to Chile.
Geum reptans, the creeping avens, is a species of flowering plant in the genus Geum of the family Rosaceae native to some mountains of Central and Southeastern Europe. A long-lived perennial that reproduces both sexually and clonally, it has high phenotypic variation, but these variable traits do not appear to be adaptations to local conditions.
Calceolaria crenatiflora is a species of flowering plant in the pocketbook plant genus Calceolaria, family Calceolariaceae. It is native to central and southern Chile and southern Argentina. It has gained the Royal Horticultural Society's Award of Garden Merit as a warm temperate greenhouse ornamental. Along with Calceolaria corymbosa and Calceolaria cana it has contributed to the Calceolaria Herbeohybrida Group of cultivars.
