Spring bulbs need good drainage and sun. Two or three handfuls of sharp gravel in the bottom of each planting hole will keep moisture from collecting around the bulbs and deter moles and voles from digging them. In the spring remove all but 2 inches of winter mulch. This will give them a chance to reach for the sun. After the flowers fade, cut off flower stems and seed heads but don’t remove the leaves until they have turned brown. Bulbs like to remain dry while dormant so avoid, if possible, watering the area where bulbs are planted. Fall is the time to fertilize your bulbs with 10-10-10 fertilizer. Scratch it into the top 2 inches of the soil. Although bone meal is usually recommended it invites animals to dig up your plants and new bulbs.