The following is a list of

tulip Tulips (''Tulipa'') are a genus of spring-blooming perennial herbaceous bulbiferous geophytes (having bulbs as storage organs). The flowers are usually large, showy and brightly coloured, generally red, pink, yellow, or white (usually in warm ...

species and cultivars which have gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as 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 (Nor ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

. They are

bulbous In botany, a bulb is structurally a short stem with fleshy leaves or leaf basesBell, A.D. 1997. ''Plant form: an illustrated guide to flowering plant morphology''. Oxford University Press, Oxford, U.K. that function as food storage organs durin ...

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widel ...

s, originally from sunny, open habitats in Europe and Asia. Thousands of cultivars are available in a huge range of sizes, shapes and colours (other than pure blue). They are usually sold as bulbs to be planted in autumn and winter for flowering in mid- to late spring. They are frequently treated as bedding plants, accompanied by other seasonal favourites such as wallflowers and

forget-me-nots ''Myosotis'' ( ) is a genus of flowering plants in the family Boraginaceae. The name comes from the Ancient Greek "mouse's ear", which the foliage is thought to resemble. In the northern hemisphere they are colloquially known as forget-me-not ...

, flowering for one season before being discarded. However, in favoured locations they can be left in the ground to re-appear the following and subsequent years. Like many other bulbous plants they require a hot, dry dormant period in the summer.

Groups

Tulips are divided into 15 distinct groups:- #Single early - cup-shaped flowers to in diameter, often margined with contrasting colour; early to mid-spring #Double early - fully double bowl-shaped flowers to in diameter, often margined with contrasting colour; mid-spring #Triumph - single flowers to in diameter; mid- to late spring #Darwin hybrid - single flowers to in diameter; mid- to late spring #Single late - cup-shaped flowers to in diameter, includes the old cottage and Darwin groups; late spring #Lily-flowered - long, narrow blooms with flared, pointed petals; late spring #Fringed - edges of petals are fringed with a different colour; late spring #Viridiflora - flowers striped with green, or entirely green; late spring #Rembrandt - "broken" colours (striped or feathered) caused by a virus; late spring #Parrot - unevenly striped with irregularly cut edges; late spring #Double late - peony-shaped fully double flowers; late spring #Kaufmanniana - '' T. kaufmanniana'' and its hybrids, multi-coloured; early to mid-spring #Fosteriana - '' T. fosteriana'' and its hybrids; mid-spring #Greigii - '' T. greigii'' and its hybrids; early to mid-spring #Miscellaneous - all species and hybrids not included elsewhere; the smaller species require sharp drainage and are best grown in an

alpine garden An alpine garden (or alpinarium, alpinum) is a domestic or botanical garden, or more often a part of a larger garden, specializing in the collection and cultivation of alpine plants growing naturally at high altitudes around the world, such as in ...

Listing

References

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Tulips Tulips (''Tulipa'') are a genus of spring-blooming perennial herbaceous bulbiferous geophytes (having bulbs as storage organs). The flowers are usually large, showy and brightly coloured, generally red, pink, yellow, or white (usually in warm ...