Tulips naturalize very well in some parts of the country, poorly in others.
The back yard of my current home was planted to tulips before I lived here,
but I saw them blooming when the purchase was closing. They were relatively
sparse. After 3 years of intense cultivation of the garden, and the addition
of many perennials (during which I suppose I probably dug up and divided
some bulbs accidentally), the back yard is a forest of tulips every spring.
Our climate is similar to Turkey's - a sort of cold, modified Mediterranean
type of climate. (Cold snowy winters, hot dry summers). So I suppose tulips
feel right at home here.