Horticulture Report: Asclepias speciosa  (Showy Milkweed) 

Oregon Native & Firewise Plant
Plant Name:  Asclepias speciosa

Common name: Showy Milkweed
Plant type: Deciduous Herbaceous Perennial
Height: 6’
Spread:  4’
Bloom Time:  May – September
Flower Color: Pink, White, Purple
Exposure:  Full Sun
Soil Requirements: Dry, Well Drained
Water Needs:  Medium; Drought Tolerant
Attributes:  Attracts Hummingbirds, Monarch Butterflies, Birds; Adult Monarchs feed on Flower Nectar and Caterpillars Eat Leaves; Deer Resistant; Monarch Larval Host
Note: Spread by Underground Rhizomes
Uses:  Butterfly Garden; Borders; Rock Gardens; Native Gardens
Firewise:  YES
Native to: Midwest to West USA, & Canada
Oregon Native: YES
USDA Hardiness Zone: 3 – 9

Report by: Viki Ashford

Photo Credit: Vicki Watkins USA, CC BY 2.0, via Wikimedia Commons

Horticulture Report: Arctostaphylos nevadensis

Oregon Native & Firewise
Plant Name:  Arctostaphylos nevadensis       

                Pinemat Manzanita

Common name: Pinemat Manzanita
Plant type: Evergreen Shrub
Height: 1’ – 2’
Spread:   3’ – 5’
Bloom Time:  Spring, Summer, Winter
Flower Color: White
Exposure: Partial Shade
Soil Requirements: Acidic Soil; Fast Draining
Water Needs: Low; Don’t Irrigate Once Established

Attributes:  Supports Bees, Birds, Butterflies, Caterpillars, Hummingbirds; Pollen & Nectar for Native Bees; Nectar for Hummingbirds
Note:  Not easily established at low elevations
Uses:  Soil Stabilization; Ground Cover; Lawn Alternative; Rock Garden    

Arctostaphylos nevadensis

Firewise:  YES
Native to: Western North America
Oregon Native: YES
USDA Hardiness Zone: 5b – 9a

Report by: Viki Ashford, AGC Member

Photos from Oregon State University https://landscapeplants.oregonstate.edu/plants/arctostaphylos-nevadensis

AGC Garden of the Month: April 2025

Garden of the Month:  825 Creek Stone Way

At the end of a cul-de-sac in Mountain Meadows is a charming and whimsical garden. The sign out front says Donna’s  garden, and in the Spring,it is full of flowers and the occasional bunny.  Donna Ritchie moved to Ashland in 2000 with her husband Dean.  Originally, their home was on the slope towards the North of town, but in 2012, after Dean’s death, Donna moved to her current home at 825 Creek Stone Way in the Mountain Meadows community.

Donna, a retired English teacher, has always loved “pretty things.”  When she first moved in, the garden was quite bland, with just a few shrubs in the front.  Over time, Donna, with Denise Moffat, her garden helper, has planted lots of colorful perennials and bulbs.  Even after our major snowfall in February, the front garden in late February was full of color.  Primroses, miniature daffodils, crocus and violas were blooming aside the path and in shiny blue pots near the front porch.  One of the most interesting plants, a dwarf iris, is an early bloomer.  These irises, called Iris reticulata, are dark purple, with designs on their falls. 

Beside colorful flowering perennials, and lavenders that bloom later, Donna has added a collection of bunnies, which perch here and there in the garden and on the porch.  Donna says these are “bunnies”, not rabbits, because rabbits are what folks eat! These charming bunnies range in size from as large as a small child to as small as a mouse.  Folks coming by to view the flowers should see if they can find the smaller bunnies, hidden amongst the plants.

Donna’s garden is irrigated during the hot months by drip irrigation and micro sprays.  Plants in pots need to be hand watered. Donna is grateful for the rain, and even the snow, which has kept her plants watered this Spring.

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

Horticulture Report: Indian Hemp Dogbane

Native Firewise Plant-

Plant Name:  Apocynum cannabinum

Common name: Indian Hemp Dogbane

Plant type: Herbaceous Perennial

Height: 3’ – 7’

Spread:   1.5’ – 2.5’
Bloom Time:  July – August

Flower Color:  Cream/White
Exposure: Sun to Partial Shade

Soil Requirements: Moist Sandy to Gravelly

Water Needs: Low to Moderate

Attributes:  Pollinated by Bees, Bumblebees, Butterflies, Flies, Beetles, Wasps, & Moths; Flowers are Hermaphrodite; Supports Bats, Butterflies, Caterpillars; Drought Tolerant

Note: All parts of the plant are Poisonous; it Contains a milky latex which may cause Skin Blisters; Invasive via spreading roots;

Uses:  Rain Gardens; Woodland Gardens; Butterfly Garden; Native Plant Garden; Erosion Control

Native to: NE United States & Canada

Oregon Native: YES

USDA Hardiness Zone: 4 – 9

Report by: Viki Ashford, AGC Member

Photo Credit: Thayne Tuason, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia

Horticulture Report: Antennaria microphylla

Native & Firewise Plant

<a href="https://commons.wikimedia.org/wiki/File:Antennaria_microphylla_(3997484407).jpg">Matt Lavin from Bozeman, Montana, USA</a>, <a href="https://creativecommons.org/licenses/by-sa/2.0">CC BY-SA 2.0</a>, via Wikimedia Commons

Antennaria microphylla,           Little Leaf Pussytoes

Plant Name: Antennaria microphylla

Common name: Little Leaf Pussytoes

Plant type: Deciduous Perennial Herb

Height: 4” – 2’

Spread:   Low Growing, Tight Groundcover

Bloom Time:  April – August

Flower Color:  White/Pink

Exposure: Sun to Partial Shade

Soil Requirements: Loamy or Clay Soil

Water Needs: Moderate

Attributes:  Attracts Hummingbirds, Butterflies, Birds, Bees

Uses:  Groundcover; Low Borders; Rock Gardens

Native to: Midwest to West

Oregon Native: YES

USDA Hardiness Zone: 3 – 8

Photo Credit: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0 https://creativecommons.org/lic

Report by: Viki Ashford, AGC Member