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

Organic & Native: What, Why & How

January 2023 Presentation by:  Kristina Lefever, AGC Member & President Pollinator Project Rogue Valley

https://www.pollinatorprojectroguevalley.org/

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Horticulture Report: Dutchman’s Pipe

Plant Name:  Aristolochia californica

Common name:  Dutchman’s Pipe

Plant type:  Deciduous Vine

Height:  10- 15 (up to 20 feet), plant requires a trellis, or other vertical support.

Bloom Time:  Later winter/Early Spring  

Flower Color:  Flowers are pale Green with dark maroon veins. Flowers are shaped like curved pipes with a flared bowl.

Exposure:  Part Shade

Soil Requirements: Tolerates most soils   

Water Needs:  Somewhat drought tolerant, but likes moisture areas; in nature is grows in moist wooded areas, alongside creeks and streams.

Attributes: Heart-shaped leaves on woody stems. Musty odious flowers attract carrion-feeding flies & gnats for pollination; insects eventually escape after plant attaches pollen to them. Plant is host for native Pipevine Swallowtail Butterfly (Battus philenor). Aristolochia californica is the only food source of the Pipevine Swallowtail!  Dutchman ’s Pipe provides habitat for other beneficial insects.

Firewise:  Unable to determine

Native to: Sacramento Valley, Northern Sierra Nevada foothills, San Francisco Bay Area, Northern Inner California Coast Ranges, Southeastern Klamath Mountains

USDA Hardiness Zone: 8 -10

Report by: Carlotta Lucas, AGC Member

Photo of Flowers By: peganum from Small Dole, England – Aristolochia californica, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=47474436

Photo of Pipevine Swallowtail caterpillar by: Joanie Kintscher, AGC Member & Past President

Fire-Resistant Plant: Greenleaf Manzanita

Plant Name:  Arctostaphylos patula
Common name:  Greenleaf Manzanita
Plant type: Shrub
Height: 3.3’ – 7’
Spread: 6’ –  9’
Bloom Time:  Winter – Spring
Flower Color: White, Pink
Exposure: Full Sun to Part Shade
Soil Requirements: Fast Draining; Slightly Acidic.
Water Needs: Low; Deep Moisture.
Attributes:   Insects Attracted to Flowers Including Native Bees; Birds Attracted to Fruits; Hosts Butterflies & Moths; Nectar Source.
Firewise: YES; One of the Few Manzanitas That Are Fire-Resistant.
Note:  Slow Growing;  Tolerates Very Cold Temperatures.
Uses:  Hedges; Bird & Hummingbird Gardens; Bee Gardens; Erosion Control.
Native to: Sierra Nevadas/North Coast Range California/Oregon/Washington; Parts of Arizona/Colorado.
Oregon Native:   YES
USDA Hardiness Zone:  5b – 9b

Article by: Viki Ashford, AGC Member, Master Gardener

Photo courtesy of Pat Breen, Oregon State University

Firewise Plant: Prairie Coneflower

Plant Name:  Ratibida columnifera
Common name:  Prairie Coneflower or Mexican Hat
Plant Type:  Herbaceous Perennial
Plant Height: 18” – 24”
Plant Width:  12” – 24”
Bloom Time: July – October
Flower Color:  Yellow or Red with Distinct Tall Center.
Exposure:  Full Sun
Soil Requirements: Dry to Moist Well-Drained; Loamy/Sandy.
Water Needs: Medium
Fire Resistant:  YES; Zone 2 – Plant 40’+ from House.
Attributes: Drought Tolerant; Deer Resistant; Long Bloom Season; Nectar for Bees, Butterflies, Insects; Seeds for Birds.
Uses: Sunny Borders; Rock Gardens; Native Plant Gardens; Containers.
Native to: Most of North America, but NOT Oregon
Oregon Native:   NO
USDA Hardiness Zone:  4 – 9

 

 

Report by: Viki Ashford, AGC Member/Master Gardener

Photo courtesy of: Stickpen, Public domain, via Wikimedia Commons

Horticulture Report: Columbine

 Plant Name:  Aquilegia species

Common name:  Columbine

Plant Type:  Perennial

Plant Height:  10” – 36”

Plant Width:  10” – 12”

Bloom Time: May – July

Flower Color: Multicolor

Exposure: Full Sun to Partial Shade

Soil Requirements: Clay, Loam, Sand

Water Needs:  Average

Fire Resistant: YES; Zone 8 = Plant 30’+ from house. 

Attributes: Good Cut Flower; Showy; Deer Resistant; Attracts Bees, Butterflies, Hummingbirds; Many Colorful Hybrid Varieties.

Uses: Borders; Containers; Rock Gardens; Cottage Gardens; Native Gardens.

Note:  Remove spent flowers to prolong blooming; Self-seeds Prolifically; Prone to Powdery Mildew & Leaf Miners.

Native to: Northern Hemisphere

Oregon Native:  YES

 USDA Hardiness Zone: 3 – 9

Report by: Viki Ashford, AGC Board Member

Photos by: Carlotta Lucas, AGC Board Member