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

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: 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

Horticulture Report – Western columbine

Native & Firewise Plant

Plant Name:  Aquilegia formosa

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

Common name: Western columbine
Plant type: Herbaceous Perennial
Height: 2’ – 3’
Spread:   1’
Bloom Time:  Late Spring to August
Flower Color:  Red, Yellow
Exposure: Full Sun to Deep Shade
Soil Requirements: Good Drainage, Organic Material
Water Needs: Low to Moderate; irrigate once a month once established
Attributes:  Nectar in Flower Blooms are appealing to Hummingbirds;
Seed Heads provide Bird Food; Deer Resistant; Supports Bats, Birds, Butterflies, Caterpillars
Note:  Self-sows, but Deadheading controls spread
Uses:  Containers; Native Plant Gardens; Pollinator Garden; Rock Garden
Firewise:  YES
Native to: Lower 48 state, Alaska, Canada
Oregon Native: YES
USDA Hardiness Zone: 3 – 9

Report by: Viki Ashford, AGC Member