Now that the spring-blooming bulbs have enriched our gardens and faded away, it is time to prepare next spring’s display.
Spring-blooming bulbs should be lifted, divided and replanted every three or four years, so if your existing bulbs could stay in place for another year or two, you can take time off—or attend to other garden priorities that are waiting for attention.
If your garden is still a Spring Bulb Free Zone, or if you wish to bring new or additional bulbs into the picture, now is the time. Let’s review.
The Daffodil (Narcissus) is the most popular spring-blooming bulb. A multitude of great choices is available. The American Daffodil Society advises that there are between 40 and 200 different Daffodil species, subspecies or varieties of species and over 25,000 registered cultivars (named hybrids). These are divided among the thirteen divisions of the official classification system. Visit the ADS website, http://daffodilusa.org/, for full information on the divisions, which are the many delightful forms of the blossom. That website also has good advice on growing this garden favorite.
Visit Wikipedia (search for Narcissus) for fascinating (I think) information on sixteen selected species of Narcissus.
Another very popular spring-blooming bulb is the Tulip, which needs a chill period to grow well. The Monterey Bay area has insufficient cold days for Tulips, so plant pre-chilled bulbs. Most mail-order suppliers offer pre-chilled bulbs, and will ship them at planting time. Order early to be sure to get pre-chilled bulbs of the cultivars you prefer.
There are many beautiful spring-blooming bulbs beyond these favorites, so try other popular choices: Hyacinth, Crocus, Grape Hyacinth, Allium, Siberian Squill, Crown Imperial, Snowdrop, Anemone, and Freesia.
Planting spring-blooming bulbs begins with choosing a location that has full exposure to the sun and is well drained. Build a berm or raised bed to ensure good drainage. If your soil is heavy with clay content, dig in a generous, three or four inch deep layer of organic compost. Bulbs that will remain in place for the next bloom season also will benefit from a top dressing of a good compost material.
Plant the bulbs deeply: three times the height of the bulb. This works out to four-to-six inches to the bottom of the hole for a typical daffodil. Water them in and place mulch on the surface to retain moisture and discourage weeds.
Garden centers are beginning stock spring-blooming bulbs now. As always, the selection is broader when ordering from a catalog or on the Internet.
In next week’s column, we’ll consider opportunities for creative landscaping with spring bulbs.
More – Mail order sources for bulbs