Tall Blazing Star

Liatris aspera

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Liatris
Species:
Liatris aspera
USDA Symbol:
LIAS

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
aug,sep,oct
Bloom Colors:
purple, lavender, pink

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Hummingbirds:
★☆☆☆☆ Documented hummingbird visits (GBIF)

Reported Fauna Sightings

Bees: Lemon cuckoo bumble bee (Bombus citrinus) Hummingbirds: Ruby-throated Hummingbird (Archilochus colubris) Butterflies:Fiery Skipper (Hylephila phyleus), ⚠️Monarch butterfly (Danaus plexippus), Peck's skipper (Polites peckius)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, birds
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from corm after fire. Prairie species adapted to periodic burns.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in open prairies and savannas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–28 days
Notes:
Cold stratification improves germination rates. Seeds germinate best at 65-75°F after stratification.

The above propagation data sourced from Claude AI

Pre-treatment: Mix the seeds with an equal amount of either perlite or vermiculite and place in a cool dry place for 1-3 months for cold stratification.

Establishment: Seeds are collected by hand from locally native plants within the eastern central Upper Peninsula. The plant is found in dry, sandy sites in full sun and takes several years to go from seed to bloom. There is a variation in pre-treatment protocol, with one suggesting cold stratification only if seeds do not grow, while the other recommends it for all seeds for 105 days.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 4C for 3 weeks, then place @ 20C.

Source: Ontario Rock Garden & Hardy Plant Society