Whiskbroom Parsley

Harbouria trachypleura

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apiaceae
Genus:
Harbouria
Species:
Harbouria trachypleura
USDA Symbol:
HATR

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
40 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul
Bloom Colors:
yellow

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Anise Swallowtail (Papilio zelicaon), Black Swallowtail (Papilio polyxenes), Indra swallowtail (Papilio indra)

Garden & Ecology Notes

Wildlife Value:
small insects
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rocky, well-drained sandy loam
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky slopes and open woodlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days

The above propagation data sourced from Claude AI