Planting Instructions for Tulips
Here you can find the specific planting and growing instructions for all different Tulip species:
Here you can find the online Tulip Picture Book:
Single Early Tulips
Flowering period: early
Average plant height: 20-30 cm
Spacing between bulbs: 5-10 cm
Landscape uses: beds, borders, rock gardens and for forcing
Single early tulips have sturdy flowers with a very distinct shape. They are constructed of six petals that are usually pointed at the tip. These tulips are very suited to flower containers, beds and borders. Quite a few cultivars (marked here with an asterisk) are just perfect for forcing into flower indoors.
Single Late Tulips
Flowering period: late
Average plant height: 75 cm
Spacing between bulbs: 7.5 cm
Landscape uses: parks, beds, perennial beds, and as cut flowers
The Single late tulips and the Darwin hybrids deserve the title for being the tallest tulips in the entire assortment. Single late tulips can be found in almost any colour known to tulips, including some extremely unusual bicoloured varieties. Single late tulips make first-class cut flowers.
Viridiflora Tulips
Flowering period: late
Average plant height: 40-60 cm
Spacing between bulbs: 5 cm
Landscape uses: beds, borders and as cut flowers
The tulips in this group are closely related to Single late tulips and have also inherited several of their other characteristics. The flower shape is like that of the Lily-flowered tulips. What makes these tulips so fascinating is that their petal colour includes green. Another of Viridiflora's assets is that its flowers remain beautiful a long time - a good three weeks. They work well as cut flowers.
Fosteriana Tulips 
Flowering period: early
Average plant height: 25-30 cm
Spacing between bulbs: 10 cm
Landscape uses: parks, beds, borders and rock gardens
Naturalising is possible with these tulips
Double Late Tulips
Flowering period: late
Average plant height: 30-40 cm
Spacing between bulbs: 7.5 cm
Landscape uses: beds, borders and cut flowers
The flowers, which are always large and double,
can easily reach a span of 10 cm across. Since the flowers can be damaged in extreme weather conditions (rain and wind), it is advisable to plant them in a sheltered location. Double late tulips perform exceptionally well in regions having cold winters and late springs. Certain cultivars are suitable for forcing indoors.
