Vol. 43

Title:
Flower Bulb Growing and Forcing

Authors:
John Roozen and Richard Roozen

pp: 280-281

Abstract:
Although commercial bulb growing has been attempted at various times in most parts of the world, major production has become centered in certain temperate countries with comparatively mild climates. Generally, these countries lie in the north temperate zone, between lat. 30° and 55°. In these areas, extremes of winter and summer are tempered by winds from oceans or other large bodies of water. In the United States, Washington State leads in the production of bulbous iris, tulips, and daffodils. Available precipitation records indicate that the Skagit Valley, located in the northwestern part of the state, more closely fulfills the natural curing requirements of the main bulb types than does any other major growing area. Skagit Valley also has an abundance of Puget silt loam and Puget clay loam soils. Drainage is a major factor in bulb production and is a critical factor when selecting fields. Crop rotation with large acreage agronomic crops like green peas and grains to break the disease

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