Horticulture Report: Armeria maritima (Sea Thrift)

Plant Name:  Armeria maritima

Common name:  Sea Thrift
Plant Type:  Herbaceous Perennial
Plant Height:  .5’ – 1’
Plant Width:  .5’ – 1’
Bloom Time: April – May
Flower Color:  Pink to White
Exposure: Full Sun
Soil Requirements: Infertile, Well-Drained Soil.
Water Needs: Low
Fire Resistant:  YES; Zone 8 = Plant 30’+ from house.
Attributes: Showy Flowers; Drought Tolerant; Deer Tolerant; Attracts Bees; Butterflies.
Uses: Ground Cover; Edging/Border Fronts; Rock Gardens; Containers.
Note:  Deadhead to Encourage More Blooms.
Native to: Northern Hemisphere
Oregon Native: YES
USDA Hardiness Zone: 4 – 8

Report by: Viki Ashford, AGC Board Member

Photo by: Carlotta Lucas, AGC Board Member

Oregon Native: Ceanothus prostratus

Plant Name:  Ceanothus prostratus
Common name:  Mahala Mat
Plant Type:  Evergreen Groundcover/Subshrub
Plant Height:  6”
Plant Width:  8’
Bloom Time:  May – July
Flower Color:  Pale Purple to Pale Blue to White
Exposure:  Sun
Soil Requirements: Average, Gritty Soil.
Water Need:  Regular; Drought Tolerant; Dry in Summer.
Fire Resistant: YES; Plant 30’+ from house.
Attributes: Attracts Bees; Fixes Nitrogen; Host Plant to Some Butterflies; Attracts Other Insects; Deer Resistant.
Uses:  Erosion Control; Bee/Bird/Butterfly Gardens.
Note: Verticillium Wilt Resistant.
Native to: California into Nevada; Pacific Northwest
Oregon Native: YES
USDA Hardiness Zone: 6 – 9

Report by: Viki Ashford, AGC Member, Master Gardener

Photo Credit: Adam Schneider, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons https://commons.wikimedia.org/wiki/File:Mahala_mat.jpg

Horticulture Report: Creeping Thyme

Plant Name:  Thymus praecox
Common name:  Creeping Thyme
Plant Type:  Groundcover
Plant Height:  1” – 4”
Plant Width:  6” – 18”
Bloom Time: May – August
Flower Color: Pink White, Purple
Exposure: Full Sun to Part Shade
Soil Requirements: Average, Dry – Medium, Well-Drained; Tolerates Rocky or Poor Soil.
Water Need:  Drought Tolerant Once Established
Fire Resistant: YES.  Plant 30’+ from house.
Attributes:  Leaves in Shades of Light to Dark Green Yellow, or Variegated; Deer Resistant; Attracts Bees/Butterflies.
Uses: Rock Walls; Between Pavers; Rock Garden; Path Edging.
Note:  Cut Back Stems to Maintain Plant Appearance; Susceptible to Root Rot in Poor Draining Soils.
Native to: SW & Central Europe; Greenland; Turkey
Oregon Native:  NO
USDA Hardiness Zone: 4 – 10

Report by: Viki Ashford, AGC Member

Photo Credit: Jason Hollinger, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Horticulture Report: Dead Nettle

Plant Name:  Lamium species
Common name: Dead Nettle
Plant Type:  Prostrate Herbaceous Perennial
Plant Height:  8” – 12”
Plant Width:  12” – 36”
Bloom Time:  May – June
Flower Color: Pink, White, Purple
Exposure:  Part Shade to Shade
Soil Requirements: Moist, Rich, Humus Rich, Well-Drained Soil.
Water Need:  Medium
Fire Resistant: YES; Zone 1-8 – 30’+ from house.
Attributes: Attractive Foliage; Attracts Bees; Variety of Foliage Colors & Textures; Deer Resistant, Drought Tolerant.
Uses:  Spiller in Containers; Dead Bulb Foliage Cover; Groundcover.
Note: Trailing Type Growth; Cut Back or Shear to Stimulate New Growth; Roots Where Stems Touch Ground.
Native to: Europe, Western Asia, North Africa
Oregon Native:  NO
USDA Hardiness Zone: 3 – 8

Report by: Viki Ashford, AGC Member/ Master Gardener

Photo by: Franz Xaver, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Horticulture Report: Sedums

Plant Name:  Sedum species
Common name:  Sedum or Stonecrops
Plant Type:  Perennial Succulent
Plant Height:  2” – 12”; Varies Depending on Varieties:  Ground Cover Level to Upright
Plant Width:  6” – 24”
Bloom Time:  Summer, Fall
Flower Color: Pink, Red, White, Yellow (Depends on Variety)
Exposure: Full Sun to Part Sun
Soil Requirements: Loamy, Sandy, Well Draining.
Water Need:  Low; Drought Tolerant Once Established.
Fire Resistant: YES; 10” or more from house.
Attributes: Attracts Birds/Butterflies; Foliage in Shades of Green to Blue/Chartreuse to Pink; Deer Resistant
Uses: Rock Garden; Edging; Containers, Smaller varieties ground cover.
Note: Deadhead After Flowering to Maintain Shape & Size; or Leave Attractive Seed Heads for Winter Interest; Subject to Mealybugs, Scale, Slugs/Snails, Powdery Mildew.
Native to: Eastern United States
Oregon Native:  Some varieties of Sedum spathulifolium and other broadleaf stonecrop are native to Oregon
USDA Hardiness Zone: 3 – 10

Report by: Viki Ashford, AGC Member

Autumn Joy Sedum and Broad-Leaf Sedum Photos by: Carlotta Lucas, AGC Member

Sedum oreganum (Yellow flowers) photo by: Stan Shebs https://calscape.org/loc-california/Sedum%20oreganum()

Horticulture Report: Snow-in-Summer

Plant Name:  Cerastium tomentosum
Common name: Snow-in-Summer
Plant Type:  Herbaceous Perennial Evergreen Groundcover
Plant Height:  6” – 12”
Plant Width:  2’ – 3’
Bloom Time:  Summer
Flower Color:  White
Exposure:  Full Sun
Soil Requirements: Dry, Sandy, Well-Draining Soil
Water Need:  Dry
Fire Resistant: YES; Plant 30’+ from house.
Attributes: Fast Growing; Silvery-Gray, Wooly Foliage; Deer Resistant; Showy Flowers; Drought Tolerant
Uses:  Rock Gardens; Border Edging; Cottage Garden; Bulb Cover; Hanging Basket.
Note: Spreads by Runners; Shear off flowers after bloom; Plants are Short-Lived
Native to: Italy; Sicily
Oregon Native:   NO
USDA Hardiness Zone: 3 – 7

Report by: Viki Ashford

Heron2 CC BY-SA 3.0 via Wikimedia Commons