The bluebell flower can grow from bulb or start from seed. Propagate from bulbs in the fall. Good spacing is vital for comfortable growth, so space them about 1 foot apart. If you choose to start from seeds, do it indoors. It is best to do so in the spring. Leave 8 inches of space in between planted rows. Germination should occur within 2 months. You can then transplant into a site of your choice in the garden. Bluebells thrive in sunny areas. However, they also appreciate some shade. Choose a site that has fertile, well-drained soils such as sandy loams or clay loams. Ideal acidity range should fall between 6.0 and 7.0 pH. Under the right conditions bluebells spread fast. The flowers are fairly easy to maintain. Below are some care tips that will give you healthy and attractive bluebells.
Water adequately when you plant and during the early growth phase. Give 1 inch of water weekly. If rainfall is adequate you need not give as much supplemental water. Bluebells love moist ground so be sure to water frequently. Soils should be moist but not soggy. Let the soils dry out a bit before you give more water to not only encourage healthy growth, but also assure you of abundant flowering.
Once flowering has occurred, cut back on watering. This will give the flowers an opportunity to dry out which is vital for proper health. Do not give excessive water as this will kill the plants.
Maintain 3 inches of organic mulch in the summer and winter. This will help to keep the roots cool which is vital to proper growth. Step up to 4 inches during the winter to protect the root system adequately. Use an organic mulch such as chopped leaves, straw or shredded bark. This will add to soil nutrient levels once decomposition sets in.
When planting, give a fertilizer that is rich in phosphorous. This will encourage proper root development. Give again once in the late spring, summer and fall. Skip fertilizer application in the winter. Once the plants are established, give an organic fertilizer like fish emulsion. Apply every 2 weeks during the growing season to help sustain healthy growth and ensure abundant blooming.
Adequate water is essential during the hot summer months. If you fall back on watering, the plants are likely to wilt. The intense sunlight can also cause the plant to wilt, or to develop leaf scorch.
Take some protective measures to to keep your flowers well-sheltered. Erect a screen around them. You can also cover with burlap or some similar material that will allow good air circulation. Intense light is also frequently a problem during the winter. Take the same protective measures as during the summer. Maintain a 4-inch cover of organic mulch in the winter. It will help retain soil moisture. It also reduces frost heaving associated with the frequent freeze-thaw processes.