Many varieties have a green spot at the base of their petals. Parrot tulips are sensitive to poor weather and should be planted in a protected spot. Late season flowering Single Late Tulips incorporates the former Darwin, cottage, and breeder tulips. Along with the Darwin hybrid tulips, they are the some of the tallest tulips. Flowers are borne on stems up to 30 inches tall.
Flowers are available in a wide range of colors.
Double Late Tulips are often referred to as peony-flowered tulips. The many-petaled flowers are borne on 12 to 20 inch stems. Plant double late tulips in protected locations as the large flowers can be damaged by rain and strong winds. Viridiflora Tulips produce long-lasting flowers which have prominent green markings on their petals. The unusual flower characteristics make it a novelty item in the garden.