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Hieracium Species, Polar Hawkweed

Hieraciumatratum

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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Hieracium (hi-er-uh-KEE-um)
Info
Species
atratum (at-RAH-tum)
Info
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness

Unknown - Tell us

Danger

Unknown - Tell us

Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details
May be a noxious weed or invasive
Soil pH requirements

Unknown - Tell us

Patent Information

Unknown - Tell us

Propagation Methods
From seed; direct sow outdoors in fall
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional
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