Conflicting information. Trying to get this straight! Some miscellaneous paragraphs and the links.
Greigii tulips are famous for their decorative purple mottled leaves. Superior bulbs for rockgardens, containers, low borders and naturalizing under trees. The bulbs prefer to be left in the ground. They like well-drained soil and some sun on their heads during the spring.
http://dutchgrown.com/wholesal...
Tulips need to be pre-chilled to bloom well in Zones 7b-10. They should be placed in the refrigerator (NOT freezer) in October for 8-10 weeks, then planted in December when the weather cools down. Without chilling, plants will be stunted and the flowers will open down in the leaves. Once you take the bulbs out of the fridge, plant them right away. Don't let the bulbs sit in the sun while you are digging.
http://www.colorblends.com/sou...
The tulips shown below seem to handle the cooling process and southern heat pretty well. Some species tulips can return for several years - namely Sylvestris, Bakeri, Clusiana Lady Jane, Clusiana Tubergen's Gem and linifolia.
http://www.colorblends.com/sou...
Notice it says Bakeri is one that does well in the south, then you open up the Bakeri-Liac-Wonder and it says prechill in zones 7-10.
http://www.colorblends.com/Per... (needs to be pre-chilled)
https://store.brentandbeckysbu... -Darwin, division 4. No prechill mentioned and good up to zone 9!!
https://store.brentandbeckysbu... Another Darwin, division 4.
https://store.brentandbeckysbu... All division 4