Author Archives: Ashland Garden Club

Oregon Native: Black Hawthorn

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Plant Name:  Crataegus douglasii
Common Name:  Black Hawthorn
Plant Type:  Much-Branched Shrub or Small Tree
Plant Height:  6’ – 30’
Spread:  10’ – 25’
Bloom Time: May – June
Flower Color:  White followed by Blue-Black Berries
Exposure:  Sun – Part Shade – Shade
Soil Requirements: Moist
Water Needs: High
Attributes: Showy Fruits,  A few Birds consume Berries; Attracts Butterflies; Fragrant Flowers; Autumn Foliage; Drought Tolerant.
Note:   Prune in winter or early spring; Susceptible to: Rust, Fireblight, Powdery Mildew, Borers, Leafminers, & Scale.  Cons: Has Prickles & Thorns; Messy Fruits; Suckers Form Thickets. 
Uses: Hedge
Native to:  Alaska to Northern California, Rockies
Oregon Native: YES
USDA Hardiness Zone:  3 – 9

Report by: Viki Ashford

Photo from: Oregon State University Department of Horticulture https://landscapeplants.oregonstate.edu/plants/crataegus-douglasii

Horticulture Report: Polystichum setiferum (Soft Shield Fern)

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Plant Name:  Polystichum setiferum
Common name: Soft Shield Fern
Plant Type:  Evergreen Fern
Plant Height: 2’ – 3’
Spread: 2’ – 3’
Bloom Time: N/A
Flower Color: N/A
Exposure: Part Shade to Full Shade
Soil Requirements:  Fertile, Humusy, Well-Draining Soil.
Water Needs: Dry to Medium
Attributes:  Winter Interest; Stalks & Mid Ribs are covered with Cinnamon Color; Brown Scales; Deer Resistant.
Note: Plant Rhizome at Angel to Prevent Crown Rot; Cut Back Spent Fronds in late February or March.
Uses: Shaded Borders; Rock Gardens; Woodland Gardens; Wild Gardens; Containers
Native to:  Southwestern & Central Europe
Oregon Native:   NO
USDA Hardiness Zone:  6 – 8

Report by: Viki Ashford, AGC Member & Master Gardener

Photo Credit: Monrovia https://www.monrovia.com/plant-catalog/plants/1244/soft-shield-fern/

Garden of the Month: June 2020

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Near Hunter Park

There is a spectacular garden near Hunter Park that is the Ashland Garden Club’s Garden of the Month for June.  The residents have lived there for 40 years, and had done smaller renovations in the past.

The owners re-landscaped about three years ago after they incorporated the back of another property nearby.  The property boundary was legally redrawn at that time.  The result is a very large garden, especially for the neighborhood.

Laurie Sager, Solid Ground Landscaping, and Tim Ferguson did the work in 2017.  The workmanship throughout the property is exquisite:  The metal and wood work of fencing and gates, the concrete retaining walls, and the gorgeous stone walkways and patios are impeccable.  The deep red color of the metal is unexpected and just right.

An unusual feature is a geometric pattern of concrete pavers beneath a Japanese maple tree surrounded by “Brass Buttons” ground cover.  A charming blue star creeper surrounds stone pavers in the front.

A large Liriodendron (tulip tree) dominates the front yard and a Douglas fir shades portions of the back.  Most of the mature rhododendrons are holdovers from earlier gardens here.  Ornamental grasses are placed judiciously, particularly in front.  Peonies are featured in front and back.  A wonderfully diverse selection of plants are perfectly placed throughout the yard.

Article by: Ruth Sloan, AGC Member

Photos by: Larry Rosengren.

Horticulture Report: Diabolo® Ninebark

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Plant Name:  Physocarpus opulifolius ‘Diabolo®’
Common name: Ninebark ‘Diabolo®’
Plant Type: Deciduous Shrub
Plant Height: 4’ – 8’
Spread: 4’ – 8’
Bloom Time: May – June
Flower Color:  Pinkish White with Purple Leaves and Reddish Fruit.
Exposure:  Full Sun to Part Shade
Soil Requirements:  Tolerates many soil types.
Water Needs: Dry to Medium
Attributes:  Drought Tolerant; Bird Friendly
Note:  Prune immediately after bloom.
Uses: Hedge; Exfoliating Bark provides Winter Interest; Shrub Border.
Native to: North America
Oregon Native:  NO
USDA Hardiness Zone:  2 – 7

Report by: Viki Ashford, AGC Member & Master Gardener

Photo from: Monrovia  https://www.monrovia.com/plant-catalog/plants/1926/diabolo-ninebark/

Why Choose Native Plants?

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Because native plants support native wildlife. Below is the number of wildlife species supported by these native plants.

Flowers and Grasses – CHOOSE NATIVES
Rank # Common Name Genus Species # species
hosted
1 Strawberry Fragaria sp 69
2 Lupine Lupinus sp 55
3 Goldenrod Soladago sp 49
4 Deer vetch Lotus sp 46
5 Sagebrush Artemesia sp 41
6 Sunflower Helianthus sp 40
7 Senecio Ragwort sp 29
8 Violets Viola sp 27
9 Milk vetch Astragalus sp 26
10 Vetch Vica 25
11 California Fuschia Epilobium 25
12 Indian Paintbrush Castilleja 24
13 Rabbitbrush Chrysothamus 24
14 Geranium Geranium 21
15 Goldenbush Ericameria 19
16 Beardtongue Penstemon 18
17 Cinquefoil Potentilla 18
18 Blue Flax Linum 18
19 Yarrow Achillea 18
20 Evening Primrose Oenothera 17
Specialist host plant for the Monarch Butterfly
Milkweed Asclepias 1

Oregon Native: Helianthus annnuus

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Plant Name: Helianthus annnuus
Common name: Common Sunflower
Plant Type:  Annual
Plant Height:  1.5’ – 8’
Spread:  1.5’ – 3’
Bloom Time: July – October
Flower Color:  Yellow with Bicolor Rays & Brown to Purple Center Disk.
Exposure:  Sun
Soil Requirements:  Average Moist, Well-Drained; Tolerates Poor Soil.
Water Needs:  Medium
Attributes: Birds seek seeds; Deer & Drought Tolerant; Nectar Plant for some Insects.
Note:  Spread rapidly by seed; Extensive crossing & hybridizing results in large number of cultivars; rust, leaf fungal spot, & powdery mildew can be a problem.
Uses: Back Borders, Cottage Gardens; Bird Gardens; Wildflower & Native Plant Gardens.
Native to:  Manitoba to Minnesota to Texas & westward.
Oregon Native:  YES
USDA Hardiness Zone:  2 – 11

Report by: Viki Ashford

Photo by: Carlotta Lucas