Tag Archives: Firewise Plant

Firewise Plant: Tall Bearded Iris

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Plant Name: Iris hybrids
Common name:  Tall Bearded Iris
Plant Type: Herbaceous Perennial
Plant Height: 16” – 30”
Plant Width:  14” – 24”
Bloom Time: May – June
Flower Color:  Multi-colored including Bicolor
Exposure: Full Sun
Fire Resistant: YES; Zone 1:  Plant 30+ feet from Structure.
Soil Requirements: High Organic Matter; Good Drainage.
Water Needs: Infrequent Watering, but Deeply.
Attributes: Good Cut Flower; Deer Resistant; Drought Tolerant.
Uses: Perennial Border; Cutting Garden; Mass Planted in Naturalized Area.
Note:  Lift & Divided Clumps Every 3 – 4 years in Late Summer After Bloom;
Plant at Soil Level or Slightly Covered; Fertilize in Early Spring; Iris Borer is an Insect Pest;
Additional Problems:  Fungal Diseases/Crown Rot/Mosaic Virus.
Native to: Mediterranean Area
Oregon Native:  NO
USDA Hardiness Zone:  3 – 10

AGC Board Members:

Report by: Viki Ashford, Master Gardener

Photos by: Carlotta Lucas (All photo rights reserved)

Horticulture Report: Rock Rose

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Plant Name:  Helianthemum nummularium

Common name:  Sun Rose or Rock Rose

Plant Type: Herbaceous Perennial

Plant Height:  8” – 10”

Plant Width:  12” – 16”

Bloom Time:  June – August

Flower Color:  Red, Pink, Yellow, Orange, Multicolored

Exposure: Full Sun

Soil Requirements: Dry, Alkaline, Rocky, Sandy Soil;

Water Needs: Dry; Low

Fire Resistant:  YES – Zone 1:    Plant 30+ feet from Structure

Attributes: Mounding Growth Habit; Drought Tolerant; Evergreen with Grey-Green Foliage; Attracts Bees/Butterflies.

Uses:  Rock Gardens; Edging Plant; Ground cover; Border Front.

Note: Shear Plants after flowering to encourage additional growth; each flower opens for only one day.

Native to: Europe; Asia Minor

Oregon Native:   NO

USDA Hardiness Zone: 4 – 7

Horticulture Report: Sedges

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Plant Name:  Carex species: There are more than 1,500 species of these perennials.

Common name:  Sedges

Plant Type:  Deciduous or Evergreen Perennials

Plant Height:  12” – 4’

Plant Width:  10” – 12”

Bloom Time:  Varies

Flower Color:  Stems & Panicles of flower heads in short spikes. Provides Interesting Foliage and Movement.

Exposure: Part Shade to Full Shade, some varieties will take Full Sun, (check specific plant’s preference)

Soil Requirements: Carex grow in soils ranging from 5.5 to 7.5 on the pH scale. Most average garden soils fall between a pH range of 6.0 to 7.0.

Water Needs:  Some like Wetter Sites, Some Drier Conditions. Check variety for water needs.    

Fire Resistant:  YES;  Zone 1 – 8;   Plant 30’+ from house

Attributes: Deer Resistant, Provides 3- seasons of Interest, Easy to grow, Low maintenance; Wide Range of Colorful Grass-like Foliage; Adds Drama to a Landscape, Adds Texture, Host plants for butterflies and skippers.  Beneficial to pollinators by providing cover in the winter. Excellent seed source for birds. Provides Texture and Movement in a landscape.       

Uses:  Carex species to suit just about any situation. Mass plantings, Ground Cover, Container Plantings, Rockery gardens, Lining Sidewalks, Edging Flowerbeds, and more. 

Note: May be Susceptible to Rust, Smut, Leaf Spot, Aphids.

Native to: Found Worldwide

Oregon Native:  NO

 USDA Hardiness Zone: 4 – 9, check variety for hardiness in your zone. 

  • Carex buchananaii
  • Carex glauca
  • Carex morrowii (variegated)
Carex Albula

Report by: Viki Ashford, and Carlotta Lucas, both AGC Board Members

Photos by Monrovia Nursery: https://www.monrovia.com/catalogsearch/result/?q=carex

Firewise Plant: Japanese Pachysandra

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Plant Name:  Pachysandra terminalis
Common name: Japanese Pachysandra
Plant Type:  Herbaceous Perennial
Plant Height:  6” – 8”
Plant Width:  10”+
Bloom Time:  April – June
Flower Color: White
Exposure: Part Shade to Full Shade
Soil Requirements: Moist, Organically Rich, Well-Draining Soil.
Water Need:  Moderate; Supplemental Irrigation.
Fire Resistant: YES; Zone 8 – 30’+ from house.
Attributes: Semi-evergreen; Winter Interest; Deer Resistant; Attracts Bees.
Uses:  Ground Cover; Erosion Control; Cottage Garden.
Note: Spreads by Rhizomes; Avoid Overhead Watering.
Native to: Japan, North Central China
Oregon Native:   NO
USDA Hardiness Zone: 5 – 9

Report by: Viki Ashford, AGC Member/ Master Gardener

Photo from: N. Carolina State University, Extension Service https://plants.ces.ncsu.edu/plants/pachysandra-terminalis/

Firewise Plant: Dianthus, Garden Carnation

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Plant Name:  Dianthus species
Common name: Garden Carnation or Pinks
Plant Type:  Annual; Evergreen Perennial; Subshrub; Over 300 Species
Plant Height:  2” – 12”
Plant Width:  6” – 16”
Bloom Time:  May – August
Flower Color: Pink, White, Red, or Yellow
Exposure:  Full Sun
Soil Requirements: Well-Drained Soil
Water Need:  Low
Fire Resistant: YES; Zone 1 – 20’+ from House.
Attributes: Grayish-Green Foliage; Deer Resistant; Attracts Butterflies; Good Cut Flower; Sweet Clove Fragrance.
Uses:  Rock Gardens; Cottage Gardens.
Note: Regularly Deadhead for Repeat Bloom; Do Not Mulch in Winter with Compost.
Native to: Asia & Europe
Oregon Native:  NO
USDA Hardiness Zone: 3 – 9

Viki Ashford, AGC Member / Master Gardener

Western Pasque Flower

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Plant Name:  Anemone occidentalis
Common name:  Western Pasque Flower
Plant type: Perennial Herb
Height:  4” – 2.5’
Bloom Time: May to August
Flower Color:  White with Purplish Tinge; Silky Plumed Seed head Follows.
Exposure: Full Sun
Soil Requirements:  Well-Drained Scree (loose rocky debris)
Water Needs:  Medium
Attributes:  Long Lasting Unique Seed Head. Firewise: Good Fire Resistances
Note:  Poisonous Parts
Uses: Rock Garden; Moist Meadow. Alpine Plantings,
Native to: Western North America
Oregon Native: YES
USDA Hardiness Zone: 4-8

Seed Heads

Report by: Viki Ashford, AGC Member & Master Gardener

Flower Photo by: Eric Yarnell, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Seed Heads Photo (Mt. Rainer, WA) by: Carlotta Lucas, AGC Member