Oregon Native Plant: Achillea millefolium (Common Yarrow)

Plant Name:  Achillea millefolium
Common name:  Common Yarrow
Plant Type:  Perennial
Plant Height:  3’
Spread: 2-3′
Bloom Time: April – September
Flower Color:  Yellowish White
Exposure: Sun to Part Shade
Soil Requirements:  Dry
Water Needs: Medium
Attributes:  Use in Fresh or Dried Arrangements with pleasing Fragrance; Value to native bees. Attracts butterflies.
Note:  A complex of both native and introduced plants and their hybrids.
Uses:  In fresh or dried arrangements; pleasant fragrance.
Native to:  North America
Oregon Native:  YES
USDA Hardiness Zone: 3 – 9

Report submitted by: Viki Ashford

Photo by: (c) Steve Guttman, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/24013640@N02/3683708823

Horticulture Report: Agastache foeniculum

Plant Name:  Agastache foeniculum
Common name: Anise Hyssop
Plant Type: Herbaceous Perennial
Plant Height:  2’ – 4’
Spread:  1.5’ – 3’
Bloom Time: June – September
Flower Color:  Lavender to Purple
Exposure:  Full Sun to Part Shade
Soil Requirements: Well-Drained
Water Needs:  Dry to Medium
Attributes:  Deer Resistant; Drought Tolerant; Attracts Butterflies & Hummingbirds; Fragrant; Good Nectar Plant for Bees
Note:  Deadhead spent flowers to promote additional bloom.  Spreads by rhizomes & easily self-seeds.
Watch for Rust, Powdery Mildew, & Leaf Spot.
Uses: Herb; Naturalized Gardens; Good Cut or Dried Flower; Back of the Border Gardens.
Native to:  Northern North America
Oregon Native:  Native to Washington, but NOT Oregon
USDA Hardiness Zone:  4 -8

Report Submitted by: Viki Ashford

Oregon Native: Monarda didyma (Scarlet Bee Balm)

Plant Name:  Monarda didyma
Common name: Scarlet Bee Balm
Plant Type:  Perennial
Plant Height: 2’ – 4’
Spread: 2’ – 3’
Bloom Time:  May – October.
Flower Color:  Scarlet Red
Exposure:  Sun to Part Shade.
Soil Requirements: Rich, Moist, Acidic.
Water Needs:  Medium
Attributes: Attracts Hummingbirds, Bees, Butterflies; Nectar Source, Deer Resistant; Good Cut Flower;
Note: Susceptible to Powdery Mildew; in the Mint Family; Deadhead Flowers to Prolong Summer Bloom.
Uses:  Perennial Border; Cottage Garden; Native Plant Garden; Bird & Butterfly Garden.
Native to:   Eastern North America & Oregon & Washington
Oregon Native:  YES
USDA Hardiness Zone: 4 – 9

Report by: Viki Ashford, Master Gardener & AGC Member

Horticulture Report: Agastache hyssop

Plant Name:  Agastache hyssop ‘Black Adder’
(A cross between A. foeniculum & A. rugosum
Common name: Black Adder Giant Anise Hyssop
Plant Type: Herbaceous Perennial
Plant Height:  2’ – 3’
Spread:  1.5’ – 2’
Bloom Time: June – Frost
Flower Color:  Smokey Red Violet Flowers Emerge from Nearly Black Buds.
Exposure:  Full Sun to Part Shade
Soil Requirements: Well-Drained
Water Needs: Medium
Attributes: Tolerates Deer; Fragrant; Attracts Bees, Hummingbirds, & Butterflies.
Note:  Deadhead Spent Flowers to Promote Additional Bloom.  Leave Leaf & Flower Stems for Protection Over Winter.  Crown/Root Rot may occur in poor draining soils. 
Uses: Long-Blooming for Summer Border; Butterfly or Cottage Gardens; Good Cut Flower.
Native to:  North America
Oregon Native:  NO
USDA Hardiness Zone:  6 – 9

Submitted by: Viki Ashford

Oregon Native: Collomia grandiflora

Plant Name:  Collomia grandiflora
Common name: Large Flower Collomia
Plant Type:  Annual Herb
Plant Height:  4” – 3’
Bloom Time: April – June
Flower Color:  Yellow Salmon to White with Blue Pollen
Exposure:  Part Shade to Full Sun
Soil Requirements: Dry
Water Needs:  Low to No Water.
Attributes: Pollen for Bees.
Note:  Flowers are eaten by deer.  Powdery mildew is possible.
Uses: Cut Flower; Native Garden; Wildflower gardening; Pollinator Garden.
Native to:  Western North America
Oregon Native:  YES
USDA Hardiness Zone:  6a – 9b

Report by: Viki Ashford

Horticulture Report: Smilacina racemosa

Plant Name: Smilacina racemosa
Common name: False Solomon’s Seal
Plant type: Perennial, Wildflower
Height: 3’
Spread: 2’
Bloom Time:Mid Spring
Flower: Color White
Exposure: Light to Deep Shade
Soil Requirements: Deep, humus-rich, acid soils
Water Needs: Average to Moist
Attributes: Attracts Bee/Butterfly; Fragrant Flowers followed by Red Berries, Birds and small mammals eat these berries, Easy care, Drought Tolerant, Graceful arching stems
Uses: Woodland Gardens; Native Gardens
Native to: Pacific Northwest
Oregon Native: YES
USDA Hardiness Zone: 4 – 9

born1945_Wikimedia Commons CC 2.0

Report Submitted by: Viki Ashford