Plant Profile: Adonis aestivalis

Taxonomy: Adonis aestivalis

Names

Pheasant's Eye, Poison Hemlock, Summer Adonis, Summer Pheasant's Eye

  • Photo of Adonis aestivalis (Adonis aestivaliss)

Phonetic Spelling:ah-DON-iss ae-stih-VAH-lis

Genus:Adonis

Species:aestivalis

Family:Ranunculaceae

Pheasant's Eye is an annual plant that hails from the Mediterranean region and parts of western Asia, although in certain areas it can thrive as a perennial. The name "Pheasant's Eye" is derived from the resemblance of its flower colors to the striking red eye of a pheasant. This plant belongs to the genus Adonis, which is part of the Ranunculaceae family, commonly known as the buttercup family. In Greek mythology, Adonis was a strikingly handsome youth adored by Aphrodite, who met his demise at the hands of a wild boar. Legend has it that his blood gave rise to the vibrant red flowers of this species. The term "Aestivalis" is Latin for "of the summer."

Initially introduced to the United States as an ornamental plant, Pheasant's Eye has since escaped cultivation and become invasive, particularly in the western regions, where it is now considered a weed in pastures and along roadsides. The plant features a taproot and erect, branched stems that are leafy, typically reaching heights of 8 to 24 inches, with a width ranging from 6 to 12 inches.

The flowers are small and resemble buttercups, displaying colors that include red-purple, scarlet red, orange, and yellow. Most species feature a dark purple blotch at the center, accompanied by dark purple anthers and stamens. The leaves are soft green, delicate, and fern-like, with blooming occurring from May to July.

Seeds can germinate right after they fall or may wait until the next spring to sprout. When planting seeds, they should be sown at a depth of 1/16 inch or simply scattered on the surface, spaced 8 to 12 inches apart. This species possesses both male and female reproductive organs and can be pollinated by various insects, including bees, flies, and beetles.

In terms of pests and diseases, aphids may infest the flowers, and the plant is toxic to humans as well as livestock such as horses, cattle, sheep, and pigs if consumed. Additionally, slugs can cause damage, and smaller plants may require support in windy conditions.

Adonis aestivalis Feature Summary

Adonis aestivalis Image Gallery

Tags

#red
#deciduous
#poisonous
#annual
#orange
#perennial
#weed
#red flowers
#weedy
#orange flowers
#herb garden
#herbaceous
#herbaceous perennial
#cutting garden
#wildflower garden
#herbaceous annual
#perennial weed
#herb

Similar Plants

Adonis aestivalis Feature Summary

Attributes
Mediterranean Basin and western Asia
CA, CO, ID, MO, OR, UT, WA
The flowers are pollinated by bees, flies and beetles.
Perennial
Annual
Attracts Pollinators
Fruit
After the flower fades in the summer, an erect, elongated cluster of green cone shaped seed pods are produced. The oblong spike has about 10-15 achenes. One plant can produce 114 seeds.
< 1 inch
Flowers
The small solitary flower emerges on the stem with buttercup-like waxy petals in colors of bright red-purple, scarlet, orange or yellow. Some species have a dark purple basal blotch in the center. The flower has purple-black colored anthers.
Gold/Yellow
Red/Burgundy
Orange
Spring
Summer
7 - 20 petals/rays
1-3 inches
Leaves
The feathery-like simple leaves are alternate and divided pinnately 2-3 times which dissect into linear segments giving a feathery-like appearance. They resemble fern or fennel leaves.
Simple
Compound (Pinnately , Bipinnately, Palmately)
Pinnatifid
1-3 inches
< 1 inch
Stem
The sparsely branched stem is light green, erect and grooved. It is 8 to 24" tall.
Smooth (glabrous)
Straight
Poisonous to Humans
Poisonous if ingested (all parts are poisonous). CAUSES ONLY LOW TOXICITY IF EATEN. Symptoms include nausea and vomiting.
Digitalis-like glycoside and possibly protoanemonin
Seeds
Leaves
Stems
Sap/Juice
Flowers
Bark
Fruits
Roots
Whole Plant Traits
Perennial
Annual
Poisonous
Wildflower
Herb
Erect
Columnar
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Alkaline (>8.0)
Good Drainage
Moist
Occasionally Dry
Less than 12 inches
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
3a
3b
Clay
Loam (Silt)
Sand
Shallow Rocky
Landscape
Cutting Garden
Rock Garden
Pollinator Garden
Cottage Garden
Border
Mass Planting
Small groups
Barrier
Container
Walkways
Small Space
Slope/Bank
Pollinators
Bees
Poisonous to Humans
Problem for Horses
Problem for Children

Adonis aestivalis Attributes

Adonis aestivalis: Country Or Region Of Origin

Mediterranean Basin and western Asia

Adonis aestivalis: Distribution

CA, CO, ID, MO, OR, UT, WA

Adonis aestivalis: Wildlife Value

The flowers are pollinated by bees, flies and beetles.

Adonis aestivalis: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Adonis aestivalis: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Adonis aestivalis: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Adonis aestivalis Fruit

Adonis aestivalis: Fruit Description

After the flower fades in the summer, an erect, elongated cluster of green cone shaped seed pods are produced. The oblong spike has about 10-15 achenes. One plant can produce 114 seeds.

Adonis aestivalis: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Adonis aestivalis: Fruit Color

grass
Green

Adonis aestivalis: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Adonis aestivalis: Display/Harvest Time

Fall
Spring
Summer
Winter

Adonis aestivalis: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Adonis aestivalis: Fruit Width

< 1 inch
1-3 inches
> 3 inches

Adonis aestivalis Flowers

Adonis aestivalis: Flower Description

The small solitary flower emerges on the stem with buttercup-like waxy petals in colors of bright red-purple, scarlet, orange or yellow. Some species have a dark purple basal blotch in the center. The flower has purple-black colored anthers.

Adonis aestivalis: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Orange
filter_vintage
Red/Burgundy

Adonis aestivalis: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Adonis aestivalis: Flower Bloom Time

Winter
Spring
Summer
Fall

Adonis aestivalis: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Adonis aestivalis: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Adonis aestivalis: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Adonis aestivalis Leaves

Adonis aestivalis: Leaf Description

The feathery-like simple leaves are alternate and divided pinnately 2-3 times which dissect into linear segments giving a feathery-like appearance. They resemble fern or fennel leaves.

Adonis aestivalis: Leaf Color

spa
Green

Adonis aestivalis: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Adonis aestivalis: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Adonis aestivalis: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Adonis aestivalis: Hairs Present

No
Yes

Adonis aestivalis: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Adonis aestivalis: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Adonis aestivalis Stem

Adonis aestivalis: Stem Description

The sparsely branched stem is light green, erect and grooved. It is 8 to 24" tall.

Adonis aestivalis: Stem Color

grass
Green

Adonis aestivalis: Stem Is Aromatic

No
Yes

Adonis aestivalis: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Adonis aestivalis: Stem Form

Straight
Zig Zags

Adonis aestivalis Poisonous to Humans

Adonis aestivalis: Poison Symptoms

Poisonous if ingested (all parts are poisonous). CAUSES ONLY LOW TOXICITY IF EATEN. Symptoms include nausea and vomiting.

Adonis aestivalis: Poison Toxic Principle

Digitalis-like glycoside and possibly protoanemonin

Adonis aestivalis: Poison Severity

High
Low
Medium

Adonis aestivalis: Causes Contact Dermatitis

No
Yes

Adonis aestivalis: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Adonis aestivalis Whole Plant Traits

Adonis aestivalis: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Adonis aestivalis: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Adonis aestivalis: Maintenance

Low
Medium
High

Adonis aestivalis: Texture

Fine
Medium
Coarse

Adonis aestivalis Cultural Conditions

Adonis aestivalis: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Adonis aestivalis: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Adonis aestivalis: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Adonis aestivalis: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Adonis aestivalis: NC Region

Coastal
Mountains
Piedmont

Adonis aestivalis: USDA Plant Hardiness Zone

thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b

Adonis aestivalis: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Adonis aestivalis Landscape

Adonis aestivalis: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Adonis aestivalis: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Adonis aestivalis: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Adonis aestivalis: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Adonis aestivalis: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy