Students for Stewardship The Cork Board
← Back to the library

Bitter Daisy

Erigeron acris (eh-RI-jeh-ron AK-riss)

Family: Asteraceae Unknown Herbaceous (1-3 ft)

Native to the north-western US, This delicate wildflower that blooms between April and June can be found growing along forest edges, in forests, meadows, and along the shores of rivers and lakes. It is considered a biennial or short-lived perennial. Each stem will boast several stalked flower heads. Each flower head is 0.5-1 in. with 100 or more pink to pale magenta 1/4", thread-like rays or petals. The rays/petals are each 1/4" long. Encasing the flower head are several layers of various-length bracts that taper to a pointed tip. They may be covered with spreading hairs that can be mixed with minute glandular hairs. It likes thickets, fields, and open woods. Some shade is tolerated in hotter climates. It is, however, easy to grow in a variety of garden locations. Plant between 1.5 and 2 feet apart. It self-seeds easily. Plant in mass in a cottage, butterfly, or rock garden, or let it naturalize in a meadow. Fleabane is often confused with plants in the Aster genus, but it blooms later in the season than Asters , and the flower bracts do not overlap as they do with Aster flowers. Insects, Diseases, and Other Plant Problems: It may not thrive in a very hot and humid climate, which may also be factored in some susceptibility to powdery mildew, leaf spots, and rust. More information on Erigeron .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 60 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Aster

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Wildflower
Life cycle
Annual; Biennial; Perennial
USDA zones
2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Sand; Shallow Rocky
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 3 ft. 0 in. - 1 ft. 6 in. | Width: 1 ft. 6 in. - 1 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Arching; Cascading; Erect
Texture
Fine
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate; Rosulate
Leaf shape
Oblanceolate; Spatulate
Leaf margin
Dentate; Entire; Lobed
Leaf size
3-6 inches long, 3-6 inches wide
Hairs present
Yes
Leaf detail
Basal leaves are spatula-shaped, lobed and toothed. Moving up the stems, leaves become smaller, alternate, clasping and untoothed. The leaves are smooth to sparsely hairy. Leaves will become smaller and more lance/egg-shaped as they ascend the stem.
Flower color
Gold/Yellow; Pink; Purple/Lavender; White
Flower value
Showy
Flower form
Head
Flower shape
Radial
Flower size
< 1 inch
Flower detail
Daisy-like 1" diameter pink to white thread-like rays with yellow centers.
Bloom time
Fall; Summer
Fruit color
Brown/Copper
Fruit type
Achene
Fruit detail
The brown fruits have a tuft of hairs that are carried by the wind.
Stem color
Green; Red/Burgundy
Stem detail
The green to reddish stems are erect, single, and unbranched.
Wildlife & Ecology
Native status
Unknown
Origin
Temp. Northern Hemisphere
Distribution
AK, CA, CO, ID, ME, MI, MN, MT, OR, SD, UT, WA, WY
Wildlife value
Flowers attract butterflies.
Attracts
Butterflies; Pollinators
Play value
Attractive Flowers; Attracts Pollinators; Easy to Grow
Food & Medicine
Fruit type
Achene

Uses (ethnobotany)

A tea brewed from leaves was used medicinally as an astringent and diuretic.

Landscape Use
Landscape location
Meadow; Naturalized Area; Rock Wall; Slope/Bank; Woodland
Landscape theme
Butterfly Garden; Cottage Garden; Pollinator Garden; Rock Garden
Design feature
Mass Planting
Garden tags
#white flowers #fields #delicate #showy flowers #low maintenance #drought tolerant #deer resistant #pink flowers #cottage garden #self-seeding #daisy-like #naturalizes #rock garden #butterfly friendly #wetland margins #wet soils tolerant #rocky soils tolerant #native perennial #heat intolerant #humidity intolerant #wildlife friendly #meadow #woodland #wildflower #thicket #wetland
Problems & Resistance
Problems
Short-lived
Resistant to
Deer; Drought
Propagation
Seed

Planted at Hunnicutt

Nobody’s planted this one yet.