Basic Types and Varieties
Not only 150 species but over 3,000 different varieties.
Tulips are classified into Divisions by type:
Division 1: Single Early. Medium size blossoms with a classic tulip shape. Short, sturdy stems with an overall height of 10-14”. Often fragrant. Flair, Purple Prince, Bestseller, Apricot Beauty
Division 2: Double Early. Extra petals give these flowers a full look. Shorter than most other tulips, most are about 12” tall. Lovely cut flowers. Abba, Monsella, Foxtrot, Monte Orange
Division 3: Triumph. This class offers the widest range of tulip colors. Triumphs are midseason bloomers and stand 15 to 20”. Barcelona, Bastogne, Jimmy, Princess Irene, Ronaldo
Division 4: Darwin Hybrid. Strong plants with large flowers. Bulbs often return and bloom for several years. Mid-Spring. 22” tall. Ad Rem, Apricot Impression, Banja Luka, Pink Impression
Division 5: Single Late. Tall, egg-shaped flowers are large and long-lasting. Regal presence in the landscape. Heat tolerant. 22” tall. La Courtine, Menton, Dordogne, Violet Beauty
Division 6: Lily-Flowered. Long, narrow cups with pointed petals that flare out at the top. Excellent for cutting. 12-20” tall. Elegant Lady, Marilyn, Merlot, Pieter de Leur, Sapporo
Division 7: Fringed. The top edge of each petal is whiskered and often slightly paler in color. Bloom time is mid to late spring. Overall height 20”. Carousel, Fancy Frills, Lambada, Red Wing
Division 8: Viridiflora. Streaks of green give these tulips a distinctive look. Most cultivars bloom mid to late spring. Long-lasting cut flowers. 20” tall. Groenland, Spring Green, Flaming Spring Green, Artist
Division 9: Rembrandt. Petals display exotic markings and color breaks. Resemble the tulips in 17th-century paintings. 20-24” tall. Rembrandt Mix
Division 10: Parrot. Ruffled, puckered and fringed petals twist as they mature. Excellent cut flowers. Heights vary from 14-22”. Black Parrot, Estella Rijnveld, Silver Parrot, Texas Flame
Division 11: Double Late. Plush, peony-like flowers are long-lasting in the garden or in a vase. Many cultivars are fragrant. 15-22” tall. Angelique, Carnaval De Nice, Upstar, Yellow Pomponette
Division 12: Kaufmanniana. Early bloomers with a tall, narrow cup and pointed petals. Blossoms open out flat in the sun. 8-10” tall. Johann Strauss, Scarlet Baby, Stresa, Heart’s Delight
Division 13: Fosteriana. Also known as Emperor tulips. Big flowers are 4-5” tall and open wide on sunny days. Early spring. 18” tall. Albert Heijn, Orange Emperor, Purissima, Red Emperor
Division 14: Greigii. Decorative foliage adds to the appeal of these flowers. Some cultivars have two to four flowers per stem. 12” tall. Mary Ann, Quebec, Red Riding Hood, Toronto
Division 15: Species. Wild or wild-like cultivars with relatively small flowers on slender stems. Good naturalizers. 4-10” tall. Lilac Wonder, Lady Jane, Peppermint Stick
Division 16: Multiflowering. Sometimes called “bouquet” tulips. Three to five flowers per stem extends bloom time and impact. 14-20” tall. Candy Club, Flaming Club, Happy Family
When purchasing tulip bulbs make sure that they are large, firm and heavy. Store the bulbs in a cool, dark place until planting time.
Remember that it is time to plant tulips in mid to late fall when you are raking leaves and doing other fall clean up chores . Soil temperature should be 55°F or cooler. Choose a planting location with full to part day sun, where the soil is well drained and easy to dig (never soggy). Loosen the soil to a depth of 10”.
Tulips look best when they are planted in informal groups of 12 or more bulbs. Space the bulbs approximately 3 to 4” on center and plant them 6 to 7” deep. Use a garden trowel to plant individual bulbs or remove the soil from the planting area, place the bulbs and then refill the hole.
Tulips are at their best the first spring after planting. For this reason, the bulbs are usually treated as annuals and dug out when they finish blooming. Under ideal growing conditions (sharply drained soil, cold winters, cool springs, hot, dry summers) some tulips will return to bloom again another year. The best candidates are Darwin hybrids and Species tulips. To encourage re-blooming, cut off the spent flowers as soon as they fade and allow the foliage to continue growing until it is yellow and dry.
"The National Garden Bureau recognizes and thanks, Kathleen LaLiberte from Longfield Gardens as author and contributor to this fact sheet."