• Photo of Acanthus mollis (Acanthus molliss)

Plant Profile: Acanthus mollis

Taxonomy: Acanthus mollis

Names

Bear's Breeches, Bearsfoot, Oyster Plant, Sea Dock

  • Photo of Acanthus mollis (Acanthus molliss)

Phonetic Spelling:a-KANTH-us MAW-liss

Genus:Acanthus

Species:mollis

Family:Acanthaceae

Bear's Breeches is a perennial herb native to Europe and Africa, known for its striking foliage and impressive flower spikes. The plant features large, deeply lobed leaves that remain visually appealing even when it is not in bloom. Historically, these leaves inspired the Corinthian leaf design seen in ancient Greek and Roman architecture.

Typically, Bear's Breeches grows to a height of 4 feet and spans 2 to 3 feet in width, but it can reach up to 5 to 6 feet during its flowering period. The tall spikes are adorned with numerous tubular flowers, which are purple and white, blooming from May to July. This plant propagates through rhizomes, so it is advisable to cultivate it in areas with root barriers to control its spread.

This species thrives in fertile, well-drained soils but can adapt to various soil types, with the exception of overly wet conditions. It flourishes in full sun to partial shade, although in hotter climates, some shade is beneficial to prevent leaf scorch. Without adequate irrigation, it may enter dormancy during the summer months.

Bear's Breeches is best suited for the back of garden borders, in containers, or in paved areas. To manage its growth, consider using root barriers similar to those employed for bamboo. It is important to choose its planting location carefully, as once established, it can be challenging to remove.

Acanthus mollis Feature Summary

Acanthus mollis Image Gallery

Tags

#thorns
#showy flowers
#HS302

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Acanthus mollis Feature Summary

Fruit
Green oval capsules
Flowers
2-inch tubular flowers are surrounded by green or purplish spiny bracts and occur on a 1-2 foot spike. The flower is 2-lipped with the upper being purple and forming a hood over the lower 3-lobed lip which is white with purple or rose-colored veins. Blooms May to July.
Pink
Purple/Lavender
White
Good Cut
Showy
Good Dried
2-3 rays/petals
1-3 inches
Leaves
Leaves form a mounded basal cluster of deeply lobed and cut, shiny dark green leaves. They are up to 16 inches long and 10 inches wide on a long stem.
Pinnatifid
> 6 inches
> 6 inches
Whole Plant Traits
Herbaceous Perennial
Clumping
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)
Good Drainage
Moist
3 feet-6 feet
12 inches-3 feet
Coastal
Piedmont
7a
7b
8b
8a
9a
9b
10a
10b
Clay
Loam (Silt)
Sand
Shallow Rocky
Landscape
Cutting Garden
Rock Garden
Container
Patio
Walkways
Pool/Hardscape

Acanthus mollis Attributes

Acanthus mollis: Country Or Region Of Origin

Europe, Africa

Acanthus mollis: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Acanthus mollis: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Acanthus mollis Fruit

Acanthus mollis: Fruit Description

Green oval capsules

Acanthus mollis: Fruit Type

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

Acanthus mollis: Fruit Color

grass
Green

Acanthus mollis Flowers

Acanthus mollis: Flower Description

2-inch tubular flowers are surrounded by green or purplish spiny bracts and occur on a 1-2 foot spike. The flower is 2-lipped with the upper being purple and forming a hood over the lower 3-lobed lip which is white with purple or rose-colored veins. Blooms May to July.

Acanthus mollis: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender
filter_vintage
White

Acanthus mollis: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Acanthus mollis: Flower Value To Gardener

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

Acanthus mollis: Flower Bloom Time

Winter
Spring
Summer
Fall

Acanthus mollis: 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

Acanthus mollis: Flower Shape

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

Acanthus mollis: Flower Size

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

Acanthus mollis Leaves

Acanthus mollis: Leaf Description

Leaves form a mounded basal cluster of deeply lobed and cut, shiny dark green leaves. They are up to 16 inches long and 10 inches wide on a long stem.

Acanthus mollis: Leaf Color

spa
Green

Acanthus mollis: Leaf Type

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

Acanthus mollis: 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

Acanthus mollis: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Acanthus mollis: Hairs Present

No
Yes

Acanthus mollis: Leaf Length

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

Acanthus mollis: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Acanthus mollis: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Acanthus mollis: Leaf Width

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

Acanthus mollis Whole Plant Traits

Acanthus mollis: 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

Acanthus mollis: 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

Acanthus mollis: Maintenance

Low
Medium
High

Acanthus mollis: Appendage

Prickles
Spines
Tendrils
Thorns

Acanthus mollis Cultural Conditions

Acanthus mollis: 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)

Acanthus mollis: Soil Drainage

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

Acanthus mollis: 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

Acanthus mollis: NC Region

Coastal
Mountains
Piedmont

Acanthus mollis: USDA Plant Hardiness Zone

thermostat
10a
thermostat
10b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Acanthus mollis: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Acanthus mollis Stem

Acanthus mollis: Stem Is Aromatic

No
Yes

Acanthus mollis Landscape

Acanthus mollis: 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

Acanthus mollis: 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

Acanthus mollis: 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

Acanthus mollis: Attracts

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