Tag Archives: Horticulture Report

Clemson Variegated Silverberry

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Plant Name:  Elaeagnus pungens ‘Clemson Variegated’
Common name:  ‘Clemson Variegated’ Silverberry; Thorny Olive; Silver Thorn
Plant Type:  Evergreen Shrub
Plant Height:  6’ – 10’
Plant Width:  6’ – 10’
Bloom Time:  October – November
Flower Color:  White Flowers followed by Red Fruit
Exposure: Full Sun to Part Shade
Soil Requirements: Tolerates Wide Range of Soils with Good Drainage.
Water Need:  Regular
Firewise: Medium Flammability
Attributes: Deer Resistant; Fragrant, Showy Flowers; Attracts Songbirds & Bees; Drought Resistant; Winter Interest; Variegated Leaves of Green, Gold, Yellow
Uses:  Background Plant; Wind Break; Screen.
Note:  Thorns
Native to:  China & Japan
Oregon Native:  NO
USDA Hardiness Zone:  7 – 11

Report by: Viki Ashford, AGC Member & Master Gardener

Photo from: Oregon State University Dept. of Horticulture https://landscapeplants.oregonstate.edu/node/2132

Posted by: Carlotta Lucas

Horticulture Report: Douglas Spirea

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Plant Name:  Spiraea douglasii
Common name:  Douglas or Western Spirea
Plant Type:  Deciduous Shrub
Plant Height:  3’ – 7’
Plant Width:  3’ – 6’
Bloom Time:  June to August
Flower Color:  Deep Pink
Exposure:Full Sun to Part Shade
Soil Requirements:  Well drained, acidic, loamy, sandy soil.
Water Need:  Does well in wet areas;
Attributes: Retains brown seed heads; Attracts Bees, Butterflies, Hummingbirds, Other Pollinators; Deer Resistant.
Note:  Needs consistent moisture; Remove suckers; Susceptible to Fire Blight, Leaf Spot, Powdery Mildew, Aphids, Scale.  Prune after Flowering.
Uses: Hedge; Rain Garden; Cottage Gardens; Borders; Slopes.
Native to:  Oregon to Alaska
Oregon Native:  YES
USDA Hardiness Zone: 5 – 8

Report by: Viki Ashford, AGC Member

Photo by: Carlotta Lucas, AGC Member                                                                  Photo Location: Hyatt Lake, Oregon – July 25, 2020

Today in the Garden

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‘Teddy Bear’ Sunflowers (Helianthus annuus), Easy to grow Annual, Full sun, Well-drained soil, Semi-Drought Tolerant: Water deeply when top 2 inches of soil is dry,  Height: 18-24 inches, Flowers: 3-6 inches unique double blooms (pompom-style) Color: Deep golden yellow, Attracts: Pollinators, Provides seeds for Birds

Photos by: Carlotta Lucas, AGC Member

Horticulture Report: Christmas Fern

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Plant Name:  Polystichum acrostichoides Common name: Christmas Fern Plant Type: Evergreen Fern Plant Height: 1’ – 2’ Spread: 1’ – 2’ Bloom Time: N/A Flower Color:  N/A Exposure:  Part Shade to Full Shade Soil Requirements:  Organically Rich, Well-Drained; does not tolerate clay soil. Water Needs: Dry to Medium Attributes:  Winter Interest; Deer Resistant; Young fiddleheads are silvery & scaled in spring. Note: Plant Rhizomes at angle to avoid crown rot. Uses: Borders; Ground Cover, but plant next to each other as does not spread; massing on slopes to control erosion. Native to: Eastern North America Oregon Native:  NO USDA Hardiness Zone:  3 – 9 Report by: Viki Ashford, AGC member & Master Gardener Photo credit: Wiki Commons https://commons.wikimedia.org/wiki/File:Christmas_Fern_(6928030406).jpg Author: Virginia State Parks staff / CC BY (https://creativecommons.org/licenses/by/2.0)

Oregon Native Plant: Ribes nevadense

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Plant Name:  Ribes nevadense
Common name:  Sierra Flowering Currant/Mountain Pink Currant
Plant Type:  Deciduous Multi-Stem Shrub
Plant Height: 3’ – 6’
Spread: 3’
Bloom Time: Late Spring
Flower Color: Soft Pink
Exposure: Sun to Light Shade
Soil Requirements: Tolerates variety of soil with good drainage.
Water Needs: Can tolerate moderate drought, but prefers consistent moisture.
Attributes:  Attracts Bees, Other Insects, Hummingbirds; Host for Butterflies & Moths; Fragrant Flowers.
Uses: Bee, Bird, and Butterfly Gardens; Native Gardens.
Note: The fruit is an edible bluish-black berry, somewhat waxy and studded with glandular hairs. Always get professional advice before consuming wild edibles; in the wild this berry can be confused with poisonous berries in the area. 

Native to:  California, Nevada, Oregon
Oregon Native:  YES
USDA Hardiness Zone:  5 – 8

 

Report by: Viki Ashford, AGC Member & Master Gardener

Photo from:https://www.sevenoaksnativenursery.com/

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/