It all depends on where you live and what kind of pink Dogwood tree you grow. Without that information, all you're gonna get is vague, general info.

Thanks i live in zone 8 a and my tree is about 5 ft tall
and it is a cornus florida rubra thanks again !

My Zone 8 here near Seattle is a lot slower than Zone 8 in Texas. I do know the dogwoods are blooming in Arkansas now, so it won't be long for you.