• Photo of Cunila origanoides (Cunila origanoidess)

Plant Profile: Cunila origanoides

Taxonomy: Cunila origanoides

Names

American Dittany, Common Dittany, Dittany, Fairy Skirts, Frost Flowers, Frost Mint, Maryland Dittany, Stone Mint, Sweet Horsemint, Wild Oregano

  • Photo of Cunila origanoides (Cunila origanoidess)

Phonetic Spelling:

Genus:Cunila

Species:origanoides

Family:Lamiaceae

American Dittany is a fragrant perennial herb native to the mint family. Its genus name, Cunila, is derived from the Latin word for marjoram, while the species name, origanoides, comes from the term "like oregano." The common name, Dittany, is rooted in the Greek word diktamnon, which refers to a similar mint species, Origanum dictamnus, known as Dittany of Crete. This plant is primarily found in the central and eastern regions of the United States, showcasing small clusters of purplish-lavender flowers that bloom from August to September.

To propagate American Dittany, the most effective method is through stem cuttings taken in spring or summer, which typically develop roots within 7 to 10 days. Additionally, the plant can be easily divided during the summer months. It attracts a variety of pollinators, including bees, butterflies, and skippers, drawn to its nectar. Notably, American Dittany is resilient against diseases and pests, and it is tolerant of both deer and drought conditions.

This plant thrives in dry, shallow, rocky soil and prefers full sun to partial shade. It serves as an attractive border plant and is an excellent choice for native gardens, naturalized areas, herb gardens, or rock gardens. In early fall, American Dittany's vibrant lavender flowers and aromatic green leaves provide a striking contrast to the typical autumn hues. During fall frosts, the plant may produce "frost-like" flowers, a unique phenomenon caused by the freezing and bursting of sap that has been pushed out from its stems.

Cunila origanoides Feature Summary

Cunila origanoides Image Gallery

Tags

#showy flowers
#fragrant flowers
#drought tolerant
#perennial
#purple flowers
#fragrant leaves
#NC native
#herbaceous perennial
#rock gardens
#wildflower garden
#border front
#nectar plant mid-summer

Similar Plants

Cunila origanoides Feature Summary

Attributes
Native Americans used this plant medicinally
AL, AR, DL, DC, FL, GA, IL, IN, KS, KY, MD, MO, NJ, NY, NC, OH, OK, PA, SC, TN, TX, VA, WV
Bees, butterflies, and skippers are attracted to this plant for nectar and for pollination.
Used in teas and folk medicine remedies
Perennial
Seed
Stem Cutting
Division
Fruit
In the fall after the blossoms fade, each flower will form 4 tiny dark brown nutlets that are 1 mm long and 0.7 mm wide. They are ellipsoid in shape and have 3 blunt angles. Due to their tiny dust-like size, they are easily blown away by the wind.
Schizocarp
Brown/Copper
< 1 inch
Flowers
The flowers appear in small clusters of typically purplish lavender on the tips of the stems or in the leaf axils. Each 1/4 to 1/3 inch flower is tubular in shape and has 2 upper lobed and 3 lower lobed tiny lips. The corolla is pink or lavender but rarely white. There are soft hairs along the outside of the lobes. The filaments of the stamen are white to light purple. The anthers are pink to lavender, but as the flower ages, they turn brown. The style is white to light purple. The flowers bloom from late summer to mid-autumn and generally last 1.5 months ( August to September).
Purple/Lavender
4-5 petals/rays
< 1 inch
Leaves
The leaves range in color from yellowish-green, medium green, to dark green. They are small, opposite, lanceolate or ovate with pointed tips and cordate bases The leaf margins are slightly toothed. There is soft hair along major leaf veins. The leaf venation is pinnate. The leaves have a strong mint fragrance when crushed. In the fall after the first frost, the leaves change from dark green to deep reddish-purple.
Green
Gold/Yellow
Purple/Lavender
Red/Burgundy
Ovate
Lanceolate
1-3 inches
< 1 inch
Stem
The four sided stems are long and wiry. The stem surface is smooth to slightly hairy. The color of the stem is purplish-green to dark reddish-purple.
Purple/Lavender
Green
Red/Burgundy
Smooth (glabrous)
Straight
Whole Plant Traits
Perennial
Herbaceous Perennial
Native Plant
Wildflower
Herb
Creeping
Ascending
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)
Acid (<6.0)
Good Drainage
Coastal
Piedmont
Loam (Silt)
Sand
Shallow Rocky
Landscape
Drought Tolerant Garden
Edible Garden
Rock Garden
Butterfly Garden
Native Garden
Woodland
Naturalized Area
Slope/Bank
Butterflies
Pollinators
Bees

Cunila origanoides Attributes

Cunila origanoides: Uses (Ethnobotany)

Native Americans used this plant medicinally

Cunila origanoides: Country Or Region Of Origin

U.S. native

Cunila origanoides: Distribution

AL, AR, DL, DC, FL, GA, IL, IN, KS, KY, MD, MO, NJ, NY, NC, OH, OK, PA, SC, TN, TX, VA, WV

Cunila origanoides: Wildlife Value

Bees, butterflies, and skippers are attracted to this plant for nectar and for pollination.

Cunila origanoides: Edibility

Used in teas and folk medicine remedies

Cunila origanoides: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Cunila origanoides: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Cunila origanoides Fruit

Cunila origanoides: Fruit Description

In the fall after the blossoms fade, each flower will form 4 tiny dark brown nutlets that are 1 mm long and 0.7 mm wide. They are ellipsoid in shape and have 3 blunt angles. Due to their tiny dust-like size, they are easily blown away by the wind.

Cunila origanoides: Fruit Type

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

Cunila origanoides: Fruit Color

grass
Brown/Copper

Cunila origanoides: Display/Harvest Time

Fall
Spring
Summer
Winter

Cunila origanoides: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Cunila origanoides: Fruit Width

< 1 inch
1-3 inches
> 3 inches

Cunila origanoides Flowers

Cunila origanoides: Flower Description

The flowers appear in small clusters of typically purplish lavender on the tips of the stems or in the leaf axils. Each 1/4 to 1/3 inch flower is tubular in shape and has 2 upper lobed and 3 lower lobed tiny lips. The corolla is pink or lavender but rarely white. There are soft hairs along the outside of the lobes. The filaments of the stamen are white to light purple. The anthers are pink to lavender, but as the flower ages, they turn brown. The style is white to light purple. The flowers bloom from late summer to mid-autumn and generally last 1.5 months ( August to September).

Cunila origanoides: Flower Color

filter_vintage
Purple/Lavender

Cunila origanoides: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Cunila origanoides: Flower Value To Gardener

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

Cunila origanoides: Flower Bloom Time

Winter
Spring
Summer
Fall

Cunila origanoides: 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

Cunila origanoides: Flower Shape

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

Cunila origanoides: Flower Size

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

Cunila origanoides Leaves

Cunila origanoides: Leaf Description

The leaves range in color from yellowish-green, medium green, to dark green. They are small, opposite, lanceolate or ovate with pointed tips and cordate bases The leaf margins are slightly toothed. There is soft hair along major leaf veins. The leaf venation is pinnate. The leaves have a strong mint fragrance when crushed. In the fall after the first frost, the leaves change from dark green to deep reddish-purple.

Cunila origanoides: Leaf Color

spa
Gold/Yellow
spa
Green

Cunila origanoides: Deciduous Leaf Fall Color

spa
Purple/Lavender
spa
Red/Burgundy

Cunila origanoides: Leaf Type

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

Cunila origanoides: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Cunila origanoides: 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

Cunila origanoides: Leaf Margin

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

Cunila origanoides: Hairs Present

No
Yes

Cunila origanoides: Leaf Length

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

Cunila origanoides: Leaf Feel

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

Cunila origanoides: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Cunila origanoides: Leaf Width

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

Cunila origanoides Stem

Cunila origanoides: Stem Description

The four sided stems are long and wiry. The stem surface is smooth to slightly hairy. The color of the stem is purplish-green to dark reddish-purple.

Cunila origanoides: Stem Color

grass
Green
grass
Purple/Lavender
grass
Red/Burgundy

Cunila origanoides: Stem Is Aromatic

No
Yes

Cunila origanoides: Stem Cross Section

Angular
Oval
Round
Square

Cunila origanoides: Stem Surface

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

Cunila origanoides: Stem Form

Straight
Zig Zags

Cunila origanoides Whole Plant Traits

Cunila origanoides: 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

Cunila origanoides: 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

Cunila origanoides: Growth Rate

Slow
Medium
Rapid

Cunila origanoides: Maintenance

Low
Medium
High

Cunila origanoides Cultural Conditions

Cunila origanoides: 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)

Cunila origanoides: Soil pH

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

Cunila origanoides: Soil Drainage

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

Cunila origanoides: 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

Cunila origanoides: NC Region

Coastal
Mountains
Piedmont

Cunila origanoides: USDA Plant Hardiness Zone

thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Cunila origanoides: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Cunila origanoides Landscape

Cunila origanoides: 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

Cunila origanoides: 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

Cunila origanoides: Attracts

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