Varieties, there are several diverent varieties of tulips. Tulips are aranged in diverent groups. Underneed you can click to those groups and what kind of tulips are in that group. This information is lokated on the website of VWS Export BV which is a dutch exporter of flowerbulbs.
|Double Early||Kaufmanniana||Single Early|
|Double Late||Lily Flowering||Single Late|