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Long Tubed Iris
( Iris macrosiphon )
Iris macrosiphon
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Long Tubed Iris (Iris macrosiphon)
15 Nurseries Carry This Plant
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Iris macrosiphon
(Long Tubed Iris) is a flowering plant in the Iridaceae (Iris) family, endemic to California in the Cascade Range Foothills, north and central Sierra Nevada Foothills, Inner North Coast Ranges, and San Francisco Bay Area, where it occurs in sunny grasslands, meadows, and open woodlands. The typical iris leaves are very slender, arching, strap-like, 2.5-5 millimeter wide, and blue-green in color. The flower is highly variable, from golden yellow to cream or pale lavender to deep blue-purple, generally with darker veins. In the wild it is usually found in clumps of the same general color. The flower stems are usually short (less than 25 centimeter) when in the sun and bear 2 flowers. It blooms in spring. It may go deciduous if subjected to summer heat or dryness.
Plant Description
Plant Type
Perennial herb
Size
1 - 2 ft tall
1 ft wide
Growth Rate
Moderate
Dormancy
Summer Semi-Deciduous, Winter Deciduous
Flower Color
Blue, Cream, Lavender, Pink, Purple, White, Yellow
Flowering Season
Spring
Wildlife Supported
A variety of insects are attracted to the flowers
Butterflies & moths hosted ( 2
likely
* )
SHOW ALL
*
American Ear Moth
Amphipoea americana
Amphipoea americana
*
Verbena Bud Moth
Endothenia hebesana
Endothenia hebesana
Landscaping Information
Sun
Full Sun, Part Shade
Moisture
Low
Summer Irrigation
Max 2x / month once established
Nurseries
Carried by 15
Ease of Care
Moderately Easy
Cold Tolerance
Tolerates cold to 15° F
Soil Drainage
Medium
Soil Description
Prefers damp loamy soil with plenty of organic matter. Soil PH: 6.0 - 8.0
Common uses
Deer Resistant
Companion Plants
Use as an understory with most native trees of northern California
Propagation
?
For propagating by seed: No treatment. Sow in early fall outdoors.
Sunset Zones
?
6*, 7, 8, 9, 14*, 15*, 16*, 17*, 18
Natural Setting
Site Type
Open slopes of northern California as part of woodland, forest, grassland or meadow
Climate
Annual Precipitation: 18.0" - 154.7", Summer Precipitation: 0.20" - 5.95", Coldest Month: 10.8" - 52.0", Hottest Month: 34.1" - 77.6", Humidity: 0.12" - 24.64", Elevation: 7" - 14090"
Alternative Names
Common Names
: Bowltube Iris, Ground Iris, Long-tubed Iris
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Long Tubed Iris
Iris macrosiphon
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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