Tag Archives: evergreen groundcover

Horticulture Report: Rock Cress

Posted on by

Plant Name:  Aubrieta deltoidei
Common name: Rock Cress
Plant Type:  Evergreen Herbaceous Perennial
Plant Height:  .5’ – .75’
Plant Width:  1’ – 2’
Bloom Time:  Late Spring – Early Summer
Flower Color:  Purple-Red
Exposure: Full Sun
Soil Requirements: Well-Drained;
Water Need:  Low
Fire Resistant: YES; 30’+ from house.
Attributes: Deer Resistant; Attracts Birds, Butterflies, Hummingbirds;
Uses:  Rock Gardens; Front of Border; Containers.
Note: Cut Back After Flowering, Not in Fall; Short Lived; Divide Every 1 – 3 Years;
Native to: Eastern Europe
Oregon Native:  NO
USDA Hardiness Zone:  4 -8

Purple Rock Cress

Report by: Viki Ashford, AGC Member

Photo Credit: Eli+, Public domain, via Wikimedia Commons

Oregon Native: Ceanothus prostratus

Posted on by

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: Veronica Ground Covers

Posted on by

Plant Name:  Veronica species
Common name:  Speedwell
Plant Type:  Perennial Groundcover
Plant Height:  4” – 8”
Plant Width:  18” – 24”
Bloom Time: May/June
Flower Color: Blue, Pink, White
Exposure: Full Sun to Part Shade
Soil Requirements: Moist, Well-Drained
Water Needs:  Drought Resistant; For Best Bloom Water Moderately About 1” a Week.
Fire Resistant: YES; Plant 30’+ from House.
Attributes:  Attracts Butterflies/Hummingbirds; Deer Resistant. NOTE: Veronica tends to be deer-resistant, though extreme conditions deer with graze on plants they otherwise wouldn’t eat.
Uses: Rock Gardens; Flower Bouquets; Perennial Border.
Note:  Showy in Full Bloom; Cut Back for Overwintering; Deadhead to Extend Bloom.
Native to: Northern Europe; Asia
Oregon Native: NO
USDA Hardiness Zone: 3 – 8

Veronica species

  • Blue Woolly Speedwell (Veronica pectinata)
  • Turkish Veronica (Veronica liwanensis)
  • Thyme Leaf Speedwell  (Veronica oltensis)
  • Snowmass® Blue-Eyed Speedwell (Veronica Snowmass P018S)
  • Veronica filiformis (Creeping Speedwell)
  • Veronica peduncularis  or umbrosa ‘ George Blue’
  • Veronica Repens
  • Veronica peduncularis
  • Veronica liwanensis
  • Veronica oltensis
  • Veronica Repens