Genus: Tulip

Tulipa

Photo/Illustration: 
Jennifer Benner
Tulip (Tulipa)
TEW-lih-pah
Liliaceae
Tulips originate in regions with cold winters and dry summers. (They require a cold treatment in order to bloom.) They are invaluable for early spring color in bedding schemes, parterres, cottage gardens, and mixed borders. Smaller species are suitable for rock gardens. Many only last and bloom reliably for one season (best treated as annuals, or lifted six weeks after blooming, dried, with only the largest bulbs replanted), but some of the species will naturalize. Many are suitable for forcing. Tulips are grouped into 15 divisions: Single Early, Double Early, Triumph, Darwin Hybrid, Single Late, Lily-flowered, Fringed, Viridiflora, Rembrandt, Parrot, Double Late, Daufmanniana, Fosteriana, Greigii, and Miscellaneous.
Noteworthy characteristics:  These beloved bulbs offer a definite sign that winter is history, and spring is here to stay. Their vessel-like blooms take many forms—single, double, peony, fringed, and lily—and are offered in every color of the rainbow. Their diversity is enhanced by the varied patterning of colors; they can be margined, flamed from the base, striped, or chameleon.
Care:  Grow in fertile, well-drained soil in full or afternoon sun. Plant to a depth of two and a half times the height of the bulb. In regions warmer than Zone 8, bulbs will need a cold treatment (40° to 45°F for 8 to 10 weeks).
Propagation: 

Sow seed of species in a cold frame or cold greenhouse in the fall. Divide offshoots in summer and replant.

Problems: 

Bulb and root rot, gray mold, slugs, snails, aphids, nematodes, voles.

Species, varieties and clutivars for genus Tulipa

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'Finola' Tulip
Tulipa 'Finola'
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'Princess Irene' Tulip
Tulipa
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'Salmon Parrot' Tulip
Tulipa 'Salmon Parrot'
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'Zurel' Tulip
Tulipa
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Cool Out
Tulip blends
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Jacques and Jill
Tulip blends
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Mixed Company
Tulipa
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Saffron
Tulip blends
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See View Plait
Tulip blends
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Spangle
Tulip blends
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Sven Ska
Tulip
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Thanks and Praise
Tulip blends
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Tulip
Tulipa 'Carnaval de Nice'
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Tulip
Tulipa 'Charmeur'
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Tulip
Tulipa 'Esperanto'
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Tulip
Tulipa 'Garant'
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Tulip
Tulipa 'New Design'
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Tulip
Tulipa 'Silverstream'
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Tulip
Tulipa batalinii 'Bright Gem'
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Tulip
Tulipa greigii 'Calypso'
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Tulip
Tulipa greigii 'Oratorio'
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Tulip
Tulipa greigii 'Red Riding Hood'
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Tulip
Tulipa linifolia
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Tulip
Tulipa praestans 'Unicum'