William Baylor Hartland

William Baylor Hartland (1836–1912) was a plantsman from Ireland.

Family WB Hartland's grandfather, Richard Hartland (1745–1821), came to Ireland from the Kew Botanic Gardens in 1776 to become the gardener to the Earl of Kingston at Mitchelstown where he remained until 1785. Richard Hartland established a nursery at Belview, Mallow, in 1787.

Each of Richard Hartland's three sons operated nurseries in County Cork: Arthur Hartland established a nursery at Turner's Cross, Richard Hartland Jr the Lough Nursery, and William Hartland (d.1843) operated the Mallow business. The latter relocated the business to Cork in 1810.

In turn, William Hartland's two sons, William Baylor Hartland (1836–1912) and Henry Albert Hartland (1840–1893) became respectively a plantsman and artist. His bulb farm was approximately . Hartland sent flowers from his farm to various markets, including the one at Covent Garden. He also maintained the "Old Established Garden Seed Ware-House" at 24 Patrick Street, Cork. The early catalogues were whimsical, and did not always find favour with the horticultural establishment. His niece, Gertrude Hartland, illustrated many of his catalogues, including the influential Floral Album of Daffodils (1890) and later editions. The catalog for 1907-8 includes a list of old Irish apples entitled 'old lamps for new lamps'.

In 1890, Hartland located an old species now known as 'Ard Cairn Russet', a late keeping apple, and sent samples to the Royal Horticultural Society. He also collected tulips from Irish gardens and introduced the 'Mrs. Moon' variety. Outside of gardening, Hartland is known for producing a colourful tourist guide after a trip to the west of Ireland. He is also remembered by the naming of the Hartland's Avenue/Road area of Cork City in Lough Parish, the location of one of his nurseries.