Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Hieracium

Species:

Hieracium rupestre

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

30 cm

Drought Tolerance:

Medium

Bloom Months:

jun, jul, aug

Bloom Colors:

yellow

Ground Cover:

Yes

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Pollen Specialist Bee Keystone:

★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Minimum Light:

Full Sun

Best Light:

Full Sun

Habitat:

Rocky outcrop, Montane, Alpine

Wildlife Value:

bees, butterflies

Ecology:

Hieracium rupestre is a rupicolous montane to subalpine hawkweed found on calcareous cliffs, ledges, and screes in the southwestern Alps and adjacent pre-Alpine ranges.

Soil Requirements

Soil:

rocky — also tolerates limestone

pH:

neutral to alkaline

Drainage:

well-drained

Moisture:

dry to moderate

Notes:

Grows primarily in crevices of calcareous rocks, scree, and shallow skeletal soils derived from limestone or dolomite.