Purplestem Angelica
Angelica atropurpurea
- Native to:
- Canada, Labrador, Prince Edward I., United States
Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute.
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Apiaceae
- Genus:
- Angelica
- Species:
- Angelica atropurpurea
- USDA Symbol:
- ANAT
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 200 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- white, greenish-white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Agonopterix clemensella, American Idia (Idia americalis), Harris's Dagger Moth (Papaipema harrisii), Black Swallowtail (Papilio polyxenes), short-tailed swallowtail (Papilio brevicauda)
Reported Fauna Sightings
Bees: Brown-belted bumble (Bombus griseocollis), Common eastern (Bombus impatiens), Half-black bumble (Bombus vagans), Lemon cuckoo (Bombus citrinus), 🛑Rusty-patched bumble (Bombus affinis) Butterflies:Black Swallowtail (Papilio polyxenes), Viceroy butterfly (Limenitis archippus)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, syrphid flies, birds
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, moist, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Prefers wetland areas; often found near streams and rivers
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination and lose viability quickly. Fresh seed germinates best; store cold-moist if not sowing immediately.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Expose to fluctuating outdoor winter temps incl. freezing for 3 months. Increase light/temp in spring. Requires light / surface sow (fine seed).