Horticulture Report: Asarum caudatum, aka: Western Wild Ginger

Native Firewise Plant

Photo Credit: Robert Flogaus-Faust, CC BY-SA 3.0, via Wikimedia Commons

Plant Name:  Asarum caudatum

Common name: Western Wild Ginger

Plant type: Evergreen Herbaceous Perennial

Height: 1’

Spread:  6” – 1’6”
Bloom Time:  Spring

Flower Color: Brown Purple to Green Yellow

Exposure:  Full Shade

Soil Requirements: Good Drainage; High Organic Matter; Acidic

Water Needs:  Regular Water

Photo Credit: Walter Siegmund, CC BY-SA 3.0, via Wikimedia Commons

Attributes:  Ginger Aroma when Leaves Rubbed; Winter Interest;    Showy Flowers; Attracts Ants as Pollinators

Note:  Spreads by Rhizomes; Flowers are Unique Shape, but Hidden under Leaves

Uses:  Containers; Groundcover; Lawn Alternative; Rock Gardens;    Borders

Firewise:  YES

Native to: Western North America

Oregon Native: YES

USDA Hardiness Zone: 7 – 10

 

 

Report by: Viki Ashford, AGC Member

Native Shrubs for Southern Oregon

RED-FLOWERING CURRANT, (BLOOD CURRANT)

Ribes sanguineum Purch

Mid-height deciduous shrub, 3–9-feet with many upright stems from the base. Gray-green leaves. Blooms emerge before foliage with pendant red/pink flower clusters bloom in late winter. Shrub produces blue/black berries with waxy bloom in the summer.

This plant is a rapid grower and is drought tolerant. There is a selection of varieties flowering currants available in shades of red, pink, and white.

Habitat: Dry open woods, Forest edge, Slopes

Flowers attract hummingbirds, Berries attract birds.

PACIFIC, OR WESTERN, NINEBARK

Physocarpus capitatus (Pursh) Kuntze

Mid-height, multi-stemmed deciduous shrub to 8′-10’. Leaves resemble a maple tree leaves. Produces small white flowers in dense 2–3″ clusters in late spring. Plant turns a rose-brown color in the fall. Older stems have shredding bark.

Habitat: Best used in moist locations, along creeks & streams.

Ninebark Varieties:

Summer Wine – Bright red leaves when emerging, turning dark purple. Upright arching branches. Height 5.5 feet, same width. Exposure: Sun, part shade. USDA Hardiness Zone 2

Little Devil – Red stems with green and Red glossy leaves – Height 3.5 feet, same width. Exposure: Sun, part shade. USDA Hardiness Zone 2

Diablo : Dusky dark purple leaves turn red in autumn. Upright and arching shape. Height 8-10 ft, same width. Exposure: sun, part shade. USDA Hardiness Zone 2

Dart Gold: Bright gold new leaves, sometimes tinged with red. Chartreuse color in the shadowed center of the plant. Grows in an upright fountain shape. Grows to 5-ft , same width. Exposure: part shade. USDA Hardiness Zone 2

Amer Jubilee: New leaves are a glowing orange and gold, with touches of purple. Growth is upright rounded shape. Height 5.5ft, Width 4 to 5 feet. Exposure: Sun, part shade. USDA Hardiness Zone 2

by Carlotta Lucas, AGC Member

Western Wild Ginger

Plant Name:  Asarum caudatum
Common name:  Western Wild Ginger
Plant Type:  Herbaceous Perennial
Plant Height:  .25’ – .5’
Plant Width:  .5’ – 1.5’
Bloom Time: April – June
Flower Color: Purplish Brown
Exposure:  Part Shade to Full Shade
Soil Requirements: Well Drained, Wet Soil.
Water Need:  Medium to Wet
Attributes: Deer Resistant; Tolerates Heavy Shade with Wet Soil; Attracts Butterflies; Larval Host.
Uses: Ground Cover; Rain Garden; Edging.
Note:  Spreads by Rhizomes; Blooms are near the Ground, Hidden by Foliage; May Harbor Slugs & Snails.
Native to:  British Columbia & Western States
Oregon Native:  YES
USDA Hardiness Zone: 7 – 10

Article by: Viki Ashford

Photo Credit: (Wikipedia) Walter Siegmund, CC BY-SA 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>

Oregon Native: Blackcap Raspberry

Plant Name:  Rubus leucodermis
Common name: Whitebark Raspberry or Blackcap Raspberry
Plant Type:  Deciduous Shrub-Vine, Arching or Trailing
Plant Height: 1’ – 6.6’
Spread: 3’
Bloom Time: Spring; Fruit Ripens July – Aug
Flower Color: White
Exposure: Sun to Part Shade
Soil Requirements:  Tolerant of Sand, Loam, & Clay.
Water Needs:  Moderate to High
Attributes: Host to some Butterflies & Moths.
Note: Thorny Shoots; Crown is Perennial, Canes are Biennal; First Year Stems (Primocanes) are non-flowering; Flowers form on 2ne Year Lateral Stems (Floricanes).
Uses: Bird Gardens; Fruit Gardens.
Native to:  Western North America
Oregon Native: YES
USDA Hardiness Zone: To Zone 5

Report by: Viki Ashford, AGC Member, Master Gardener

Photo by: Aleazrocha / Public domain https://commons.wikimedia.org/wiki/File:Rubusleucodermis2.jpg

Oregon Native: Tufted Hairgrass

Plant Name:  Deschampsia cespitosa
Common name:  Tufted Hairgrass
Plant Type:  Ornamental Grass
Plant Height:  2’ – 3’
Spread:  1’ – 2’
Bloom Time: July – September
Flower Color:  Tones of Gold, Silver, Purple, Green
Exposure:  Part Shade
Soil Requirements: Average, Medium, Moist, Well-Drained Soil;
Water Needs: Medium
Attributes:  Showy Flowers; Attracts Birds; Winter Interest; Airy Panicles of Variably-Color form a cloud that is attractive when backlit; Deer Resistant.
Note:  Cut Foliage to Ground in Late Winter
Uses: Ground Cover; Rock Gardens; Mixes well with Shade Loving Perennials; Butterfly Gardens, Woodland Gardens.
Native to:  Most of North America
Oregon Native:   YES
USDA Hardiness Zone:  4 – 9

Report by: Viki Ashford

Native plant: Veratrum californicum

White false hellebore (Veratrum californicum) can be identified from the similar green false hellebore (Veratrum viride) by its spreading to ascending panicle branches and white flowers. The latter species has drooping panicle branches in the inflorescence and creamy green flowers. White-false hellebore can be found in vernally moist meadows in the mountains across central and eastern Oregon as well as in lower elevation meadows west of the Cascades and along the Pacific coast.

Common Name: Corn Lily
Water Use: High
Light Requirement: Sun to semi- shade, will not tolerate full shade
Moisture: Moist – Wet
Soil: Loam (medium); Clay (heavy); Sandy (light) if it stays wet.
Attributes: Bold showy plant; White flowers on tall stocks
Note: Cut back when leaves turn brown
Uses:  Native Gardens; Wetlands; Wildflower; Woodland;
Native: Western North America (elevations 3,500ft – 11,000 ft)

Warning: Veratrum californicum has poisonous leaves and roots. The roots are 5 to 10 times as poisonous as leaves or stem, so take special care when handling. Veratrum califoricum causes severe birth defects and death in sheep and in various rodent species.  There are also incidents of llamas, alpacas, goats and cows being affected. Deer and gophers do not bother this plant.

Veratrum californicum Photo by: Klamath Siskiyou Seeds

Article by: Lucretia Weems and Carlotta Lucas