Well nobody's responding so, although I have no knowledge of your climate, I'll make a few comments. Firstly, scalloped tulips won't be any different from any other tulips so whenever they are planted in your area it will be the same. Secondly, if you don't have a cold winter you might need to chill the bulbs. Where I live this is unnecessary so I can't help you with that. Finally, tulip bulbs are planted late in the year but before the ground freezes, if it does freeze where you live. In my climate we plant them late October or November.

This is a slightly odd question for May. Do you have the bulbs now? If so how old are they? And how have they been stored?