Woolly Yarrow Achillea tomentosa
Previously known as:
- Achillea millefolium var. occidentalis
- Phonetic Spelling
- ak-ih-LEE-ah toh-men-TOH-sah
- Description
-
Woolly Yarrow is a flowering perennial in the aster family (Asteraceae) native to southern Europe and western Asia. The genus name Achillea comes from the greek hero Achilles, and tomentosa means wooly hairs.
This low-growing species reaches 6-8 inches high and can spread up to 1 foot. It is poor soil tolerant and soils must be well-drained. Divide as needed to control size. Deadhead to prevent spread outside of the garden as it can be weedy.
The yellow flowers bloom in dense clusters from spring into summer. To promote additional blooming, deadhead once the flowers are no longer blooming. Cutting the plant down to the basal leaves after flowering may also encourage an additional fall bloom and will keep a neater appearance in the garden.
Wolly Yarrow is deer, rabbit, and drought resistant and withstands light foot traffic. Plant it in a rock garden, plant it in a container, or use it to edge a garden space. Does best in cooler summer areas.
Insects, Diseases and Other Plant Problems: Susceptible to stem not, powdery mildew and rust.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- 'Aurea'
Long lasting cut flower. Deeper yellow. - 'Golden Fleece'
Compact form - 'Goldie'
Flowers early - 'King Edward'
Yellow flowers. An RHS Award of Garden Merit award winner.
- 'Aurea'
- 'Aurea', 'Golden Fleece', 'Goldie', 'King Edward'
- Tags:
- Cultivars / Varieties:
-
- 'Aurea'
Long lasting cut flower. Deeper yellow. - 'Golden Fleece'
Compact form - 'Goldie'
Flowers early - 'King Edward'
Yellow flowers. An RHS Award of Garden Merit award winner.
- 'Aurea'
- 'Aurea', 'Golden Fleece', 'Goldie', 'King Edward'
- Tags:
-
-
Attributes:
- Genus:
- Achillea
- Species:
- tomentosa
- Family:
- Asteraceae
- Uses (Ethnobotany):
- Good cut flower
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Stem Cutting
- Country Or Region Of Origin:
- Eurasia
- Wildlife Value:
- Attracts butterflies and bees.
- Play Value:
- Attractive Flowers
- Attracts Pollinators
- Easy to Grow
- Textural
- Particularly Resistant To (Insects/Diseases/Other Problems):
- Deer and rabbit resistant
- Dimensions:
- Height: 0 ft. 6 in. - 0 ft. 8 in.
- Width: 0 ft. 8 in. - 1 ft. 6 in.
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Whole Plant Traits:
- Plant Type:
- Ground Cover
- Perennial
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Habit/Form:
- Horizontal
- Spreading
- Growth Rate:
- Slow
- Maintenance:
- Low
- Texture:
- Fine
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- Loam (Silt)
- Sand
- Shallow Rocky
- Soil pH:
- Acid (<6.0)
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Occasionally Dry
- Available Space To Plant:
- Less than 12 inches
- 12 inches-3 feet
- NC Region:
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
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Fruit:
- Display/Harvest Time:
- Fall
- Summer
- Fruit Type:
- Achene
- Fruit Description:
- Achenes contain a single seed.
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Flowers:
- Flower Color:
- Gold/Yellow
- Flower Inflorescence:
- Corymb
- Umbel
- Flower Value To Gardener:
- Good Cut
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Tubular
- Flower Size:
- < 1 inch
- Flower Description:
- Small clusters of sunny yellow disk and ray flowers appear late spring to mid-summer.
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Leaves:
- Woody Plant Leaf Characteristics:
- Semi-evergreen
- Leaf Color:
- Gray/Silver
- Green
- Leaf Feel:
- Soft
- Leaf Value To Gardener:
- Fragrant
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Leaf Margin:
- Lobed
- Serrate
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Description:
- 2 in. long pungent, grayish foliage; each leaf is twice-divided; hairy on both sides and resemble fern fronds. A spicy fragrance is emitted when crushed.
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Stem:
- Stem Color:
- Green
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Container
- Patio
- Slope/Bank
- Small Space
- Walkways
- Landscape Theme:
- Butterfly Garden
- Drought Tolerant Garden
- Pollinator Garden
- Rock Garden
- Design Feature:
- Accent
- Border
- Mass Planting
- Small groups
- Specimen
- Attracts:
- Bees
- Butterflies
- Resistance To Challenges:
- Deer
- Drought
- Foot Traffic
- Rabbits