Millard Canyon Rose Gardens
$14.00–$26.75Distance unavailable · 2418 N Lincoln Ave, Altadena, CA 91001
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trefle.io · CC-BY-SA
Iridaceae
Iris bracteata
Iris bracteata
Also known as Iris tenax subsp. bracteata, Limniris bracteata
Zones 3–9Sun Partial SunWater ModerateCare High
Flowering Plants · Native Plants · Iris · Native Iris · Pacific Northwest · California Native · Oregon Native · Rhizome · Woodland Perennial · Rare Iris · Drought Summer · Iridaceae
Pet-safeAttracts pollinators
In stock at 2 nurseriesStock updated 9/6/2026
Siskiyou iris is a rare Pacific Northwest native that thrives in gritty, well-drained, slightly acidic soil under dappled light. It prefers dry summers and cool, moist winters, mimicking its natural habitat on rocky slopes in Oregon and California. Avoid heavy clay soils and overwatering, which can quickly cause rhizome rot.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water moderately, keeping soil evenly moist but never waterlogged; reduce watering significantly in summer dormancy · Every 7-14 days during growing season
- Maintenance
- High
- Soil
- sandy loam
- Soil pH
- 6–8
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
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Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 3 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yellow
- Foliage
- Yellow · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- California, Oregon
- Attracts
- Bees, Butterflies, Hummingbirds
Sources: trefle, usda
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Rosecrans Rose Growers
$10.75–$14.50Distance unavailable · 1927 W Rosecrans Ave, Gardena, CA 90249
RetailPickupDeliveryDelivery min $250
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