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Bulb Planting 101

A four part series of articles providing information on all aspects of bulb planting and care.

Container gardening with flower bulbs

Figure 1 - Container gardening with flower bulbs

With fall on the way, it is time to consider planting bulb flowers that we want for spring blooming. Flower bulbs are one of the best flower investments for the cost, properly cared for they will provide spring color in your garden for years to come.

Flowering plants grown from bulbs work in small container gardens on balconies or patios, as shown in Figure 1, and they work in vast open spaces, as shown in Figure 2.

A swath of flower bulbs makes a path through a wooded area

Figure 2 - A swath of flowering bulbs makes a path through a wooded area

Tulips

Figure 3 - Tulips

Holland is synonymous with tulip bulbs, having created hundred's of hybrid plants over the last few hundred years. Many of these hybrids have been produced to allow bulbs to be planted in an ever increasing host of geographic climates. They are hardier, less prone to disease and are a reliable perennial plant.

Planting and cultivating flowering bulbs is as easy if not easier than planting flowering seed plants.

The keys to successful bulb cultivation are simple:

  1. Plant in the correct season.
  2. Soil needs to be properly drained and loose

Flower bulbs bloom and expand naturally. Maintain the soil and moisture and you will have a beautiful garden each and every year.

Table 1 provides a planting schedule for flowering bulbs. By planting a sequence of spring, summer and fall, flower bulbs at the appropriate time, you can enjoy their blooms practically year around.

Table 1 - Flowering Bulb Planting Schedule

Season

Bulb Species

Comments

Fall

Bulbs that flower in spring:

  • tulips
  • narcissus
  • daffodils
  • scilla
  • hardy cyclamen
  • lilies
  • crocus
  • eranthis (winter aconites)
  • erythronium
  • fritillaria
  • hyacinths
  • snowdrops

In all regions, store potted bulbs in refrigerator for forcing indoors.

Fall (California & milder areas of US Southwest)

  • ranunculus
  • freesias
  • anemones
  • paperwhites

Store tulips, crocus and hyacinths in refrigerator for 6-8 weeks before planting.

Winter

 

In all regions, remove sprouted bulbs from refrigerator for indoor forcing.

Winter (California)

 

Plant pre-chilled, hardy bulbs outdoors.

Spring

Bulbs that flower in summer:

  • achimenes
  • gladioli
  • alliums
  • calla lilies
  • tuberous begonias
  • ixia,
  • crocosmia,
  • dahlias,
  • cannas
 

Late Summer

Bulbs that are late in blooming:

  • fall crocus
  • fall & winter cyclamen