Tag Archives: Plants for zone 7

Oregon Native: Dutchman’s Breeches

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Plant Name:  Dicentra cucullaria
Common name:  Dutchman’s Breeches
Plant Type:  Herbaceous Perennial
Plant Height:  .5’ – 1’
Plant Width:  .5’ – 1’
Bloom Time:  March – May
Flower Color:  2 Outer Petals are White; 2 Inner Petals are Yellow
Exposure:  Part Shade to Full Shade
Soil Requirements: Rich, Moist, Humusy, Well-Draining Soil; Tolerates Clay Soil.
Water Need:  Medium
Firewise: YES
Attributes: Showy Flowers; Nectar Attracts Bees.
Uses:  Native & Wildflower Gardens; Shade Garden.
Note:  Some Susceptibility to Aphid Infestation; Plant Goes Dormant in Early Summer; All Parts Poisonous.
Native to:  Central & Eastern North America, Idaho, Oregon, Washington
Oregon Native:   YES
USDA Hardiness Zone:  3 – 7

Report by: Viki Ashford

Photo Credit: Biosthmors, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons

Posted by: Carlotta Lucas, AGC Board Member

Oregon Native: Blue Elderberry

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Plant Name:  Sambucus nigra caerulea
Common name: Blue Elderberry
Plant Type:  Deciduous Shrub or Small Tree
Plant Height: 6’ – 20’
Spread:  6’ – 20’
Bloom Time:  Spring to Fall
Flower Color: Cream or Yellow Flowers & Blue Berries in Fall.
Exposure: Part Shade to Full Sun.

Soil Requirements:  Tolerates a variety of moist soils,
but prefers well-drained.
Water Needs: Regular Irrigation.
Attributes:  Food Source for Birds; Deer Resistant; Attracts Bees & Butterflies.
Note: Accepts Pruning Easily; Susceptible to Canker, Powdery Mildew, Leaf Spot, Spider Mites, Aphids, Borers.
Uses: Bee, Bird, Butterfly Gardens; Bank Stabilization; Hedge; Pond/Steam Edge Planting.
Native to:  Western North America
Oregon Native:  YES
USDA Hardiness Zone: 4 – 9

Report by: Viki Ashford

Photos from: Oregon State University https://landscapeplants.oregonstate.edu/plants/sambucus-nigra-subsp-cerulea

Horticulture Report:Rock Rose

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Plant Name: Helianthemum   heliamthemum
Common name: Rock Rose
Plant type: Evergreen, or Semi-evergreen, Shrubby Perennial
Height:   6-12 inches
Spread: 1-3 feet

Bloom Time: May – June
Flower Color: Various – White, Yellow, Red, Pink, Scarlet, Orange.
Exposure: Full Sun
Soil Requirements: Well Drained Rocky to Sandy Soil.

Water Needs: Low
Attributes:  Good in Alpine & Rock Gardens, Deer Resistant, Drought Tolerant, Evergreen Good accent plant with texture & form, Gray Foliage & Dark Green Foliage.
Uses: Attracts Butterflies,  Rock gardens, Container, Ground Cover, Xeriscape Gardens.
USDA Zone: 5-8  (check cultivar)

Horticulture Report: Cotoneaster horizontalis

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Plant Name: Cotoneaster horizontaliscotoneaster_horizontal
Common Name: Rockspray Cotoneaster
Plant type: Semi-evergreen shrub
Height: 2-3 ft
Width: 5-7 ft
Bloom Time: May – June
Flower Color: Pink (tiny flowers)
Exposure: Full sun to Part shade
Soil Requirements: Requires well-drained soil, Withstands poor soil, but best in loamy soil
Water Needs: Medium
Attributes: Groundcover, Fall color, Textured arching branches , Red berries for birds, Dense foliage, Slow-growing, Semi-prostrate
Note: Tough, Easy to grow, Drought tolerant once established
Uses: Rock gardens, Rock walls, Mass plantings, Erosion control for banks & slopes, Winter interest, Shelter for Beneficial insects
Native to: Western China
USDA Hardiness Zone: 4-7

Horticulture Report: Edgeworthia chrysantha

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Plant Name: Edgeworthia  chrysantha

edgeworthia_chrysantha-2014

Edgeworthia chrysantha Akebono photo courtesy of Roozitaa & Wikimedia

Cultivar: Akebono
Common Name:  Paperbush
Plant type: Deciduous Shrub
Height:   5’ – 6’
Bloom Time: February – March
Flower Color:  Red/Orange
Exposure:  Part Shade or Shade
Soil Requirements: Moisture-retentive, Fertile Loamy Soil
Water Needs: Medium
Attributes: Winter Interest, Tubular Fragrant Flowers borne on bare stems,
Silky Silver Buds
Note: Related to Daphnes, Inner bark used in China to make quality papers. Winter hardy to below 0 degrees F.
Uses: Woodland gardens, Shady borders, Collector’s Specimen Planting, Ornamental, Used to make paper.
USDA Zone: 7b -10b

Other Varieties:
*Edgeworthia chrysantha Snow Cream Papberbush – Winter hardy  USDA Zones 7b-10bchrysantha_paperbark

*Edgeworthia papyrifera  Nanjing Gold Paperbush –  USDA Zones 8-10