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)

Today in the Garden

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Today in the garden flowers are in AGC member Lynn McDonald’s October garden.

Nasturtiums, Hydrangeas, Salvia and chrysanthemums, Petunias blooming since March, Geraniums, Origanum, Asters, Tithonia, Sweet peas in October (planted in spring), Gaura, Poppies and Bachelor Buttons, Verbena and Autumn Leadwort, Orange Cosmos, Dahlias

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: Armeria maritima (Sea Thrift)

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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

Horticulture Report: Columbine

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 Plant Name:  Aquilegia species

Common name:  Columbine

Plant Type:  Perennial

Plant Height:  10” – 36”

Plant Width:  10” – 12”

Bloom Time: May – July

Flower Color: Multicolor

Exposure: Full Sun to Partial Shade

Soil Requirements: Clay, Loam, Sand

Water Needs:  Average

Fire Resistant: YES; Zone 8 = Plant 30’+ from house. 

Attributes: Good Cut Flower; Showy; Deer Resistant; Attracts Bees, Butterflies, Hummingbirds; Many Colorful Hybrid Varieties.

Uses: Borders; Containers; Rock Gardens; Cottage Gardens; Native Gardens.

Note:  Remove spent flowers to prolong blooming; Self-seeds Prolifically; Prone to Powdery Mildew & Leaf Miners.

Native to: Northern Hemisphere

Oregon Native:  YES

 USDA Hardiness Zone: 3 – 9

Columbines

Report by: Viki Ashford, AGC Board Member

Photos by: Carlotta Lucas, AGC Board Member