Lawson owned a plant nursery in Edinburgh, Scotland and his name is most often associated with the Lawson’s cypress, Cupressus lawsonii. In addition, the specific epithets lawsonianus or lawsonii are named after him.

Famous French nurseryman whose nursery at Nancy was famous for hybridizing a wide range of landscape plants. Some of his most famous work came with developing cultivars of Syringa (lilacs) and Philadelphus (mockorange). Plants named in his honor included Philadelphus lemoinei, Malus lemoinei, Deutzia lemoinei, and Platycerium lemoinei.

One of the leaders of the Lewis and Clark Expedition which explored the western part of the United States under President Thomas Jefferson. The genus, Lewisia, was named for him and he named a genus of annual flowers, Clarkia, after his co-leader on the famous expedition, William Clark.

They also found the plants Mahonia aquifolium (Oregon grape holly), Gaillardia (blanket flower) and Symphoricarpos albus  (snowberry) on their journey and brought them back to the East coast of the United States.

Plants associated with Lewis include Mimulus lewisii and Philadelphus lewisii.

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Belgian botanist for whom the genus, Libertia, was named. Libertia is a genus of monocotyledenous plants in the family Iridaceae.

Roman architect and man of many interests who designed the garden at Tivoli in Denmark and the Ovation Fountain, for Cardinal d'Este, between 1550 and the 1580s.

Linnaeus was a Swedish Professor of Medicine and Botany at Upsala University. His major claim to fame is that he put the final touches on a method for naming living organisms that is known as binomial nomenclature.

In this system, every plant or animal is known by a simple, two word name consisting of a genus and species designation. For example, a red oak is known throughout the world by the Latinized term, Quercus rubra.

Prior to the acceptance of binomial nomenclature by the wider scientific community, plants or animals were usually given very long, multiple word names that consisted of descriptive phrases. These were very confusing and difficult for all but the top experts to remember.

Linnaeus published may works in Latin and often used his name rendered in that language as Carolus Linnæus  or after 1761 Carolus a Linné. His most definitive writings included Genera Plantarum and Species Plantarum.

He was in the habit of naming plants in honor of former students and fellow botanists including Baron Claus Alstroemer, Rev. Adam Buddle, Anders Dahl, Pehr Kalm, Olaus Rudbeckius, Daniel Solander, and Carl Pieter Thunberg.

His garden at Uppsala is a living monument to his work and is now open to the public. It was created by Olof Rudbeck, the elder around 1655 and reflects the French Style of landscape design. There are about 1,300 species of plant in the garden that were known to have been cultivated by Linnaeus. They are arranged according to his own system of nomenclature.

Born in the house on the grounds of his wonderful garden, Great Dixter, in Northiam, East Sussex, England, Lloyd studied horticulture at Wye College at the University of London. He was a world  famous gardener, writer and lecturer. Lloyd was awarded the Victoria Medal of Honour by the Royal Horticultural Society in 1979.

Plants associated with Christopher Lloyd or Great Dixter include Gazania 'Christopher Lloyd' and Ranunculus ficaria 'Brazen Hussy'.

His books include:

The Mixed Border (1957) Shrubs & Trees for Small Gardens (1965) Clematis (1965, revised 1989) Hardy Perennials (1967) Gardening on Chalk and Lime (1969) The Well-Tempered Garden (1970) Foliage Plants (1973, revised 1985) The Adventurous Gardener (1983) The Well-Chosen Garden (1984) The Year at Great Dixter (1987)

Cottage Garden (1990) Garden Flowers from Seed (1992) Christopher Lloyd’s Flower Garden (1993) In my Garden (1993) Planting Your Garden (1993) Other People’s Gardens (1995) Gardener Cook (1997) Dear Friend and Gardener (1998) Christopher Lloyd’s Garden Year (1999) Christopher Lloyd’s Garden Flowers (2000)

The Lobbs are considered the first plant explorers who went in search of new plants primarily for commercial purposes. Thomas Lobb was noted for exploring the Far East while William Lobb made trips into North America. Prior to their expeditions, most others were funded by public gardens or scientific organizations. Their employer and trip sponsor was the Veitch Nursery of Cornwall, England.

Plants associated with them include Araucaria araucana (monkey puzzle tree), Berberis darwinii, Crinodendron hookerianum, Cryptomeria japonica, Hydrangea lobbii, Luma apiculata, Ribes lobbii, Rosa 'William Lobb', Sequoiadendron giganteum and Tropaeolum speciosum.

Flemish botanist who moved to England where he became official botanist to King James I.

The plant genus, Lobelia, and the botanical family, Lobeliaceae, are named after him.

Plants associated with him include Ulmus x hollandica 'Lobel' and Acer lobelii.

A pupil of John Rose and for a time, gardener to Henry Compton, Bishop of London, at Fulham Palace. He visited the Palace of Versailles when he was in the service of the Earl of Portland and later, in collaboration with Henry Wise, laid out similar formal design gardens at many English estates.

In King James II's reign, London and Moses Cook (gardener to the Earl of Essex), Lucre (gardener to the Queen Dowager at Somerset House), and Field (gardener to the Earl of Bedford), joined in founding the celebrated Brompton Nurseries.

George London is most associated with the design of Petworth, Blenheim Palace, Chatsworth, Studley Royal (Yorkshire) and Newby Hall (Yorkshire).

German physician and botanist for whom the genus, Lonicera (honeysuckles) was named.

 

Journalist and "encyclopedist" who compiled the first complete record of hardy trees in  a book called Arboretum et Fructicetum Britannicum in 1822. The huge book was shortened in 1842 to a mere 1,200 pages and published as Trees and Shrubs of Great Britain.

He is said to have coined the expression 'gardenesque style' in which the characteristics of individual trees, shrubs and perennials are emphasized rather than being planted in large masses. Each plant is given enough space to grow to its natural size without being encumbered by surrounding plants in the landscape.

Note: According to the Internet Encyclopedia of Philosophy, “Encyclopedists” is the name usually applied to the group of French philosophers and men of letters who collaborated in the production of the famous Encyclopedie, or were in sympathy with its principles...The intention was to provide a complete alphabetical treatment of the whole field of human knowledge from the standpoint of the “Enlightenment”.

Lutyens was a famed English architect who designed both private country houses and public buildings. He was an associate of Gertrude Jekyll and worked with her to design the house and gardens at Bois des Moutiers near Dieppe, France, the gardens at Hestercombe in Somerset, Castle Drogo in Devon, Knebworth House in Hertfordshire and many other houses and gardens around England. He was also associated with the design of Great Dixter garden.

Scottish gardener and botanist who had the specific epithet, lyonii, named for him. Plants with this name include Chelone lyonii, Pentachaeta lyonii, Prunus lyonii and Epigeneium lyonii.

Email comment from David: "Three of the plant names you list under John Lyon were not named for him. Chelone lyonii is named for him as are Calycocarpum lyonii, Leiophyllum lyonii, Oxalis lyonii, Rosa carolina lyonii and the genus Lyonia.

Note: Pentachaeta lyonii, Prunus lyonii and Epigeneia lyonii were all named for William Scrugham Lyon who collected in Southern California and the Philippines.