The following is a list of tulip species and cultivars which have gained the Royal Horticultural Society's Award of Garden Merit.^[1] They are bulbous perennials, 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, 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.^[2]

Tulips are divided into 15 distinct groups:-

1. Single early - cup-shaped flowers to 7 cm (3 in) in diameter, often margined with contrasting colour; early to mid-spring
2. Double early - fully double bowl-shaped flowers to 8 cm (3 in) in diameter, often margined with contrasting colour; mid-spring
3. Triumph - single flowers to 6 cm (2 in) in diameter; mid- to late spring
4. Darwin hybrid - single flowers to 7 cm (3 in) in diameter; mid- to late spring
5. Single late - cup-shaped flowers to 7 cm (3 in) in diameter, includes the old cottage and Darwin groups; late spring
6. Lily-flowered - long, narrow blooms with flared, pointed petals; late spring
7. Fringed - edges of petals are fringed with a different colour; late spring
8. Viridiflora - flowers striped with green, or entirely green; late spring
9. Rembrandt - "broken" colours (striped or feathered) caused by a virus; late spring
10. Parrot - unevenly striped with irregularly cut edges; late spring
11. Double late - peony-shaped fully double flowers; late spring
12. Kaufmanniana - T. kaufmanniana and its hybrids, multi-coloured; early to mid-spring
13. Fosteriana - T. fosteriana and its hybrids; mid-spring
14. Greigii - T. greigii and its hybrids; early to mid-spring
15. Miscellaneous - all species and hybrids not included elsewhere; the smaller species require sharp drainage and are best grown in an alpine garden

name	species	division	colour	height (cm)	ref	image
Ad Rem		Darwin	orange-red	60	[3]
Ali Baba		greigii	red	25	[4]
Ancilla		Kaufmanniana	white/red	20	[5]
Angélique		double late	pink (pale)/green	30	[6]
Angel's Wish		single late	white	50	[7]
Apricot Beauty		single early	pink (apricot)	35	[8]
Apricot Parrot		parrot	pink (apricot)	60	[9]
Artist		viridiflora	salmon/purple/green	50	[10]
Aucher's Tulip	Tulipa aucheriana	miscellaneous	rose-pink	25	[11]
Ballade		lily-flowered	pink/white	50	[12]
Ballerina		lily-flowered	orange/red	60	[13]
Barcelona		triumph	pink	45	[14]
Batalinii Group	Tulipa linifolia	miscellaneous	yellow (pale)	20	[15]
Beau Monde		triumph	pink/white	45	[16]
Belle du Monde		single late	pink (pale)	65	[17]
Black Parrot		parrot	maroon (dark)	50	[18]
Blue Heron		fringed	violet/mauve	60	[19]
Bright Gem	Tulipa linifolia	miscellaneous	yellow/orange	20	[20]
Burning Heart		Darwin	cream/red	100	[21]
Calgary		triumph	white	25	[22]
Calgary Flames		triumph	white/yellow	25	[23]
Canasta		fringed	red/white	40	[24]
Candela		Fosteriana	yellow	35	[25]
Cape Town		single early	yellow/red	45	[26]
Capri		Darwin hybrid	red	50	[27]
Carnaval de Nice		double late	white/red	40	[28]
Casa Grande		Greigii	red	50	[29]
China Pink		lily-flowered	pink (rose)	50	[30]
China Town		viridiflora	pink/green	30	[31]
Corsage		greigii	orange	25	[32]
Cynthia	Tulipa clusiana	miscellaneous	cream/pink	25	[33]
Daydream		Darwin hybrid	orange	50	[34]
Don Quichotte		triumph	cerise pink	45	[35]
Dordogne		single late	orange/pink	65	[36]
Dreamland		single late	pink/white	60	[37]
Drumline		double late	rose/white	50	[38]
Early Harvest		Kaufmanniana	red/yellow	25	[39]
Esperanto		viridiflora	red/cream/pink	25	[40]
Exotic Sun		fringed	yellow double	45	[41]
Fancy Frills		fringed	pink/white	45	[42]
Fantasy		parrot	pink (salmon)	50	[43]
Fidelio		triumph	pink/yellow	40	[44]
Fringed Beauty		fringed	orange/yellow	35	[45]
Fusilier	Tulipa praestans	miscellaneous	red (scarlet)	30	[46]
Gavota		triumph	yellow/maroon	50	[47]
Gerbrand Kieft		double late	pink/green	40	[48]
Halcro		single late	pink (carmine)	50	[49]
Honky Tonk	Tulipa linifolia	miscellaneous	yellow (pale)	25	[50]
Ivory Floradale		Darwin hybrid	white (ivory)	60	[51]
Juan		fosteriana	orange/yellow	25	[52]
Kiev		greigii	yellow/red	30	[53]
Kingsblood		single late	red	60	[54]
Lady Jane	Tulipa clusiana	miscellaneous	pink/white	25	[55]
Lilac Wonder	Tulipa saxatilis	miscellaneous	pink (pale)/yellow	25	[56]
Little Beauty		miscellaneous	pink/purple/red	12	[57]
Little Princess		miscellaneous	orange/yellow/black	12.5	[58]
Maureen		single late	yellow (pale)	60	[59]
Menton		single late	pink/orange	73	[60]
Monte Carlo		double early	yellow	30	[61]
Moonlight Girl		lily-flowered	yellow/white	55	[62]
Mother's Love		Greigii	red/yellow	25	[63]
Ollioules		Darwin hybrid	pink (flesh)	40	[64]
Olympic Flame		Darwin hybrid	yellow/red	50	[65]
Orange Emperor		fosteriana	orange	45	[66]
Orange Princess		double late	orange	30	[67]
Oranje Nassau		double early	orange/red	35	[68]
Oranjezon		Darwin hybrid	orange	55	[69]
Oratorio		Greigii	orange/pink	20	[70]
Oxford		Darwin hybrid	orange (scarlet)/yellow	60	[71]
Parade		Darwin hybrid	red (scarlet)	50	[72]
Paul Scherer		triumph	purple	50	[73]
Peppermintstick	Tulipa clusiana	miscellaneous	pink/white	30	[74]
Pink Impression		Darwin hybrid	pink (deep)	55	[75]
Plaisir		Greigii	red/yellow	15	[76]
Prinses Irene		Triumph	orange/purple	35	[77]
Purissima		Fosteriana	white (cream)	35	[78]
Red Georgette		single late	red	40	[79]
Red Hat		fringed	red	50	[80]
Red Impression		Darwin hybrid	red	60	[81]
Red Princess		double late	red	35	[82]
Red Riding Hood		Greigii	red (scarlet)	20	[83]
Red Shine		lily-flowered	red (ruby)	60	[84]
Reputation		triumph	red/white	45	[85]
Seadov		triumph	red	30	[86]
Sensual Touch		fringed	orange	40	[87]
Showwinner		Kaufmanniana	red (scarlet)	20	[88]
Sorbet		single late	white/red	60	[89]
Spring Green		viridiflora	white/green	40	[90]
Spryng		triumph	red	30	[91]
Starlight	Tulipa bifloriformis	miscellaneous	yellow (pale)	5	[92]
Stockholm		double early	red	30	[93]
Stresa		Kaufmanniana	red/yellow	25	[94]
Strong Gold		triumph	yellow	45	[95]
Tangerine Beauty	Tulipa vvedenskyi	miscellaneous	orange/yellow	20	[96]
Temple of Beauty		single late	pink (deep, salmon)	60	[97]
Timeless		triumph	red/white	45	[98]
Tinka		miscellaneous	yellow/red	25	[99]
Toronto		Greigii	red (coral)	20	[100]
Trinket		Greigii	red/cream	20	[101]
	Tulipa altaica	miscellaneous	yellow	25	[102]
	Tulipa clusiana var chrysantha	miscellaneous	yellow	5	[103]
	Tulipa kolpakowskiana	miscellaneous	yellow/green	20	[104]
	Tulipa linifolia	miscellaneous	red (scarlet)	20	[105]
	Tulipa sprengeri	miscellaneous	red	50	[106]
	Tulipa tarda	miscellaneous	white/yellow	15	[107]
	Tulipa turkestanica	miscellaneous	white/yellow	30	[108]
	Tulipa urumiensis	miscellaneous	yellow	20	[109]
United States		Greigii	yellow/red	25	[110]
Vincent van Gogh		fringed	purple	50	[111]
White Triumphator		lily-flowered	white	60	[112]
World Expression		single late	yellow/red	55	[113]
Yellow Baby		double early	yellow	20	[114]
Zampa		greigii	cream/yellow/red	20	[115]