Bluebell (Hyacinthoides hispanica, formerly Scilla campanulata) is a flowering perennial that blooms with blue flowers on 10- to 12-inch stalks in mid-spring. The blooming period is short--only two to three weeks. Native to Spain and Portugal, bluebells are drought tolerant and add a stunning touch to a woodland garden. Bluebells are generally started from bulbs as seed can take up to four years to flower. Plant your bluebell bulbs in the fall in USDA hardiness zones 4 to 8.
Choose a planting location for the bluebells in full sun or partial shade.
Loosen the soil to a depth of 8 inches. A long-handled gardening fork works well for this task.
Add 3 inches of well-rotted manure to the soil and mix to a depth of 8 inches.
Plant the bulbs according to their size. Smaller bulbs should be planted 3 inches deep while large bulbs should be placed 5 inches deep. Space the bulbs 3 to 12 inches apart, depending upon the effect you are trying to create.
Water after planting only if the soil is dry. While the bluebell is flowering you will need to keep the soil moist at all times. When flowering has finished, stop watering completely to allow the bulbs to dry.
Cut the foliage as it begins to yellow and die. Use sharp pruning shears and cut it to the ground.
Cover the bed with 2-inch layer of well-rotted manure and cover that with a 3- to 4-inch layer of mulch in the fall.