Plant tulip bulbs once the soil has reached 60 degrees, several weeks before the first frost. Consult a USDA hardiness zone chart for your specific zone number and when you should plant bulbs for your local. County Living magazine suggests planting bulbs 4 to 6 inches apart, and about three times their depth. Cooler regions should plant tulips a little bit deeper to protect them from the harsh temperatures.
Exact spring bloom time will depend upon the weather, your area of the country, and the exact type of tulip you have planted. Plant the bulbs at the same exact depth to ensure that all the bulbs bloom at the same time.
The University of Arkansas suggests planting pink tulips next to other cool-colored blooms so that the colors don't clash. For instance, don't plant pink tulips next to orange azaleas that flower at the same time.