Iris xiphium
Dutch Iris
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Dutch Iris (Iris xiphium) - Description
Iris xiphium, commonly known as the Spanish Iris, is an iris native to Spain and Portugal. It is bulbous and bears handsome blue and yellow flowers, though they are not so large as those of I. xiphiodes. This species is also known as the Small Bulbous-rooted Iris. The Spanish Iris is favoured by florists for its striking colour combinations.
Dutch Iris (Iris xiphium) - Blooming
All bear flowers with 6 petals. Three, called standards, point up or out. And three, called falls, point out or down. Generally flowers are borne in small clusters and buds open in succession along the stalk.
Dutch Iris (Iris xiphium) - Growth
A vast genus or both perennials and bulbs, 300 species and thousands of cultivars. Foliage is sword shaped, strap shaped, or grassy. Some rhizomatous species spread widely, other form clumps.
Dutch Iris (Iris xiphium) - Planting
Varies by type. Beware of planting rhizomes too deeply or covered with too much mulch, as they may rot. Plant bearded irises from mid-summer to early fall.
Dutch Iris (Iris xiphium) - Pest
The most serious problem is bacterial soft rot, which you will recognize from mushy, foul-smelling rhizomes. To prevent, do not use manure or excess nitrogen, especially with poor drainage. If soft rot occurs, dig up and destroy the effected portions of rhizome
Dutch Iris (Iris xiphium) - Interesting facts
Iris, the Greek goddess of the rainbow, gives her name to these flowers. History records their cultivation as far back as 1500 BC in Egypt.
Dutch Iris (Iris xiphium) - Soil and irrigation
Bearded irises prefer average to rich, well-drained soil. Whereas bog irises need permanently damp soil or even to be placed at a pond margin.
