According to the US Hardiness Zone Calculator, Denham Springs, LA is located in Hardiness Zone 8.
Plant tulip bulbs once the soil reaches 60 degrees Fahrenheit or lower, normally between November to early December. Select a location that will receive full sun and has good drainage.
Bulbs grow best after a cool dormant period. The National Gardening Association suggests refrigerating tulip bulbs six to eight weeks prior to planting in the ground for hardiness zones 8 through 10
Water well after planting, and then not again until sprouts shoot up from the ground.
For an attractive tulip display, the National Gardening Association suggests planting five tulip bulbs per square foot.