Q iris-douglasiana

* Douglas Iris – Iris douglasiana (EYE-ris doug-LAS-ee-AN-uh) Family: Iridaceae (Iris Family) Native to: Western CA, OR & WA. In CA south to Santa Barbara Co.; open, grassy slopes and flats near coast; bluffs; often within sight of ocean. Growth characteristics: Perennial from rhizomes mature height: 1-2 ft mature width: 2-3 ft. Sword or grass-like leaves from base in winter/spring. Dies back in drought, freezing temperatures. Reproduce by seed or from rhizomes. Leaves and roots are toxic if eaten. Blooms/fruits: Blooms Mar-May. Flowers usually purple, borne on stalks above leaves. Horticultural cultivars & hybrids range in color from white, pink, lavender to dark purple. Many cultivars with colors varying from white to pink and lavender/purple. Very attractive & showy. Uses in the garden: naturalized areas; in a mixed ground cover; around ponds/pools. Great for sides of water gardens or vernal meadows. Under trees with light shade or north and east exposures. Attractive flowers make this a spring favorite in mixed flower beds or in containers. Sensible substitute for: non-native Iris. Attracts: pollinators, hummingbirds, birds (eat seeds) Requirements: Element Requirement Sun Full sun to partial shade (morning sun or filtered shade best in most gardens) Soil Any well-drained soil, but prefers light-medium; any pH is fine, including alkali Water Average; can survive with no summer water Fertilizer None needed Other Tolerates maritime conditions Management: Relatively easy. Can multiply into a sizeable clump, which needs dividing. Other than that, tolerates less than perfect conditions very well. Propagation: from seed: collect seed in summer, keep dry. Plant in fall in pots. Germination 2-3 months or longer. By division of rhizomes: Divide in fall/winter after new roots established. Provide water and some shade until established. Easy. Plant/seed sources (see list for source numbers): 1, 3, 5, 7-10, 13, 14, 16, 20, 24 1/19/15 * CA native but not western Los Angeles County © Project SOUND

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Transcript of Q iris-douglasiana

* Douglas Iris – Iris douglasiana (EYE-ris doug-LAS-ee-AN-uh)

Family: Iridaceae (Iris Family)

Native to: Western CA, OR & WA. In CA south to Santa Barbara Co.; open, grassy slopes and flats near

coast; bluffs; often within sight of ocean.

Growth characteristics: Perennial from rhizomes mature height: 1-2 ft mature width: 2-3 ft.

Sword or grass-like leaves from base in winter/spring. Dies back in drought, freezing temperatures.

Reproduce by seed or from rhizomes. Leaves and roots are toxic if eaten.

Blooms/fruits: Blooms Mar-May. Flowers usually purple, borne on stalks above leaves. Horticultural

cultivars & hybrids range in color from white, pink, lavender to dark purple. Many cultivars with colors

varying from white to pink and lavender/purple. Very attractive & showy.

Uses in the garden: naturalized areas; in a mixed ground cover; around ponds/pools. Great for sides of

water gardens or vernal meadows. Under trees with light shade or north and east exposures. Attractive flowers make this a spring favorite in mixed flower beds or in containers.

Sensible substitute for: non-native Iris.

Attracts: pollinators, hummingbirds, birds (eat seeds)

Requirements:

Element Requirement

Sun Full sun to partial shade (morning sun or filtered shade best in most gardens)

Soil Any well-drained soil, but prefers light-medium; any pH is fine, including alkali

Water Average; can survive with no summer water

Fertilizer None needed

Other Tolerates maritime conditions

Management: Relatively easy. Can multiply into a sizeable clump, which needs dividing. Other than

that, tolerates less than perfect conditions very well.

Propagation: from seed: collect seed in summer, keep dry. Plant in fall in pots. Germination 2-3

months or longer. By division of rhizomes: Divide in fall/winter after new roots established. Provide

water and some shade until established. Easy. Plant/seed sources (see list for source numbers): 1, 3, 5, 7-10, 13, 14, 16, 20, 24 1/19/15 * CA native but not western Los Angeles County © Project SOUND