Tag Archives: perennials

Oregon Native: False Lily of the Valley

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Plant Name:  Maiathemum dilatatum
Common name:  False Lily of the Valley
Plant Type:  Perennial
Plant Height:  2” – 4”
Plant Width:  1’8”
Bloom Time:  May – July
Flower Color: White with Red Berries
Exposure:  Shade
Soil Requirements:  Moist, Wet.
Water Need:  Medium to High
Firewise: Yes
Attributes: Pollinated by Insects; Evergreen; Hosted by Butterflies & Moths.
Uses: Ground Cover.
Note:  Spreads by Underground Roots; Can Become Invasive.
Native to:  Western North America
Oregon Native:   YES
USDA Hardiness Zone:  5a – 9b

Report by: Viki Ashford and Carlotta Lucas
Photo by: Qwert1234, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

Oregon Native: Iris chrysophylla

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Plant Name:  Iris chrysophylla
Common name:  Yellow Leaf Iris
Plant Type:  Perennial
Plant Height:  1.2” – 8.4”
Plant Width:  Narrow
Bloom Time: April – June
Flower Color: Creamy White to Pale Yellow
Exposure:  Sun to Part Shade
Soil Requirements:  Acidic Soil with Good Drainage
Water Need: Low
Attributes: Deer Resistant; Drought Tolerant; Attracts Beneficial Insects.
Fire Resistance: Score 10 (Good). Plant 10 ft of structures.
Uses: Native Landscapes, Rock Gardens, Perennial beds, Pollinator Gardens, Wildlife Habitats
Note:  Divide & Transplant in October
Native to:  NW California & Western Oregon
Oregon Native:  YES
 USDA Hardiness Zone: 4 – 9

Report by: Viki Ashford and Carlotta Lucas

Photo from: Klamath Siskiyou Seeds https://klamathsiskiyouseeds.com/product/iris-chrysophylla-yellowleaf-iris/

Western Pasque Flower

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Plant Name:  Anemone occidentalis
Common name:  Western Pasque Flower
Plant type: Perennial Herb
Height:  4” – 2.5’
Bloom Time: May to August
Flower Color:  White with Purplish Tinge; Silky Plumed Seed head Follows.
Exposure: Full Sun
Soil Requirements:  Well-Drained Scree (loose rocky debris)
Water Needs:  Medium
Attributes:  Long Lasting Unique Seed Head. Firewise: Good Fire Resistances
Note:  Poisonous Parts
Uses: Rock Garden; Moist Meadow. Alpine Plantings,
Native to: Western North America
Oregon Native: YES
USDA Hardiness Zone: 4-8

Seed Heads

Report by: Viki Ashford, AGC Member & Master Gardener

Flower Photo by: Eric Yarnell, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Seed Heads Photo (Mt. Rainer, WA) by: Carlotta Lucas, AGC Member

Oregon Native:Spaeralcea munroana (Orange Globe Mallow)

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Plant Name:  Spaeralcea munroana
Common name:  Orange Globe Mallow, Desert Mallow
Plant Type:  Perennial Subshrub
Plant Height:  8’ – 32’
Plant Width:  24”
Bloom Time:  May to August
Flower Color:  Pale Orange to Brick Red.
Exposure: Full Sun
Soil Requirements:  Tolerates Rocky, Sandy Soil or Clay with Fast Drainage.
Water Need:  Extremely Low.
Attributes: Attracts Bees; Deer Resistant
Note:  Cut Back to Ground Yearly; Susceptible to Fungal Rust Pathogen.
Uses: Rock Gardens; Along Driveways & Walkways; Container Planting; Bee & Butterfly Gardens.
Native to:  Western North America
Oregon Native: YES
USDA Hardiness Zone: 4 – 9

Report by: Viki Ashford, AGC Member

Photo by: Matt Lavin / CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0)

Oregon Native Plant: Rudbeckia hirta

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Plant Name:  Rudbeckia hirta
Common name:  Black-eyed Susan
Plant Type:  Annual or Short-Lived Herbaceous Perennial
Plant Height: 2’ – 3’
Spread:  1’ – 2’
Bloom Time: June to September
Flower Color: Yellow to Orange-Yellow Rays with Dark Brown Centers
Exposure: Full Sun
Soil Requirements:  Well Drained; Moist & Organically Rich.
Water Needs: Medium;
Attributes:  Showy Flowers; Attracts Butterflies; Deer Tolerant; Drought Tolerant; Birds enjoy Ripe Seeds; Pollen & Nectar Source for Bees & Butterflies. 
Note: Usually a short lived perennial; deadhead to encourage additional blooms; at end of season let freely self seed; Susceptible to Powdery Mildew. 
Uses: Borders; Cottage Gardens; Wild Gardens; Mass Plantings.
Native to:  Most of North America
Oregon Native:   YES
USDA Hardiness Zone: 3 – 7

Report Viki Ashford

Photo by: Carlotta Lucas