How to Grow Vibrant Spring Bulbs This Fall

By Blake Jackson

As winter comes to an end, spring-flowering bulbs bring some of the first bright colors to the landscape. Gardeners who want a strong display next spring should begin planning and planting during the fall, according to Bruce Spangenberg, Horticulture Outreach Specialist with the UW-Madison Division of Extension.

Spring bulbs are equipped with the stored energy they need to survive winter and begin growing when temperatures rise. During the previous growing season, their leaves captured sunlight and converted it into energy that was stored within the plant.

Gardeners should remember this after flowering: Allowing the foliage to remain until it naturally dies back helps replenish the bulb for future growth and flowering.

Tulips, daffodils, snowdrops, and hyacinths are examples of true bulbs, while crocuses grow from structures called corms. Although these plants differ in structure, they all contain a dormant living plant, stored nutrients, and protective tissue.

When shopping for bulbs, select firm, healthy specimens without visible damage, discoloration, soft spots, or signs of disease. Smaller bulbs can be healthy but may need additional time before producing flowers.

The planting site also plays a major role in long-term success. Proper drainage is especially important because bulbs can deteriorate when they remain in saturated soil.

Gardeners working with heavy clay can incorporate organic materials such as compost or well-rotted manure into the soil. Sandy locations may also benefit from organic matter because it can improve moisture retention.

Sunlight is another important consideration. Bulbs need enough light not only to flower but also to support the foliage that remains afterward.

Areas beneath deciduous trees can work well for early-blooming varieties because the trees may not have fully leafed out when the bulbs flower. However, locations that remain heavily shaded can cause bulbs to weaken over time.

Fall planting can also attract squirrels, which may dig up newly planted bulbs. Placing poultry wire just beneath the soil surface can discourage digging while still allowing shoots to grow through the openings in spring.

Finally, research different bulb varieties and their expected bloom periods. Selecting plants with staggered flowering times can create a colorful landscape that lasts throughout the spring season.

Photo Credit: pexels-tom-van-dyck