Tag Archives: perennials

Horticulture Report: Hesperantha Coccinea

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Plant Name: Hesperantha Coccinea
(Previously known as Schizostylis Coccinea)
Common Name: Kaffir Lily, River Lily
Plant Type: Herbaceous Perennial
Flower Color: Pale Pink, Dark Pink, Crimson, White, Orange, Red, Pale Purple
Bloom Time: Late Summer to Early Winter
Foliage Color: Blue-Green, semi-evergreen
Sun Exposure: Full Sun – Part Sun
Water Requirements: Evenly moist soil; do not let dry out
Height: 24-36 in
Spacing: 9-12 in
Hardiness: 7a to 9b
Uses: Cut flowers, Along stream beds, By Ponds & Creeks, Perennial flowerbeds, Borders, Mediterranean Gardens
Attributes: Gladiolus-like flowers appear on spikes; Likes moisture; Tolerates poor soil; Grows in clumps
Native to: South Africa

Firewise Plant: Blanket Flower (Gaillardia)

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Plant Name:  Gaillardia varieties
Common name:  Blanket Flower
Plant Type:  Perennial
Plant Height:  8” – 36”
Plant Width:  12” – 24”
Bloom Time:  June – September
Flower Color:  Red, Gold, Burgundy
Exposure: Full Sun
Soil Requirements: Well-Drained
Water Needs: Low
Fire Resistant:  YES; Zone 1-8, Plant 30’+ from House.
Attributes: Drought Tolerant; Deer Resistant; Attracts Birds & Butterflies; Other Pollinators.
Uses:  Good Cut Flower; Container Plant; Borders; Butterfly Gardens;
Note: Deadhead for Continuous Bloom; Keep Some Seed Heads for Birds; Cutting Back Clumps in Late Summer Increases Chance of Winter Survival; Divide Clumps Every 2 – 3 Years in Spring or Early Fall for Plant Vigor; Susceptible to Powdery Mildew, Leafspot, & Leafhoppers.
Native to: Western North America
Oregon Native:  YES
USDA Hardiness Zone:  3 – 10

Report by: Viki Ashford, AGC Member/Master Gardener

Photo credit: Lazaregagnidze, CC BY-SA 4.0 via Wikimedia Commons

Firewise Plant: Lupine

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Plant Name: Lupinus varieties

Common name:  Lupine

Plant Type: Perennial

Plant Height: 18” – 48”

Plant Width:  24” – 26”

Bloom Time: May – July

Flower Color:  Multiple Colors Including Blue, Yellow, Pink, White

Exposure: Full Sun

Soil Requirements: Adaptable to Soils of Slow to Fast Drainage.

Water Needs: Moderate to High.

Fire Resistant:  YES; Zone 1 – Plant 30+ feet From Structure.

Attributes: Showy Flowers; Deer Resistant; Nitrogen Fixer.

Uses: Back of the Border; Bee, Bird, Butterfly Gardens; Good Cut Flower; Perennial Border; Cottage Garden.

Note: May Need Staking;; Deadhead to Encourage Additional Flowering; Powdery Mildew & Aphids May be Troublesome; Slugs & Snails May Attack New Plants.

Native to: Western North America

Oregon Native:  YES

 USDA Hardiness Zone:  4 – 6

Report by: Viki Ashford, AGC Member/Master Gardener

Photo by: Carlotta Lucas, AGC Member

Firewise Plant: Daylily

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Plant Name:  Hemerocallis species

Common name:  Daylily

Plant Type: Perennial

Plant Height:  1’ – 4’

Plant Width:  1’ – 3’

Bloom Time:  July – August

Flower Color:  White, Yellow, Pink, Red, Gold, Mixed

Exposure: Full to Part Sun

Soil Requirements: Moist, Well-Drained.

Water Needs: Average to Medium

Fire Resistant:  YES – Zone 1:  Plant 10+ feet from Structure.

Attributes: Drought Tolerant; Attracts Butterflies & Hummingbirds.

Uses:  Borders; Mass Planting; Perennials Beds.

Note: Large Flowers Bloom for 1 Day; Blooms are Edible; After Flowering, Remove Spent Blooms & Seedpods to Encourage Re-Bloom.

Native to: Eurasia; China; Japan

Oregon Native:  NO

USDA Hardiness Zone: 3 – 9

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