Cape Marigold Dimorphotheca sinuata
Other Common Name(s):
Other plants called Cape Marigold:
Previously known as:
- Acanthotheca dentata
- Acanthotheca integrifolia
- Dimorphotheca pseudaurantiaca
- Phonetic Spelling
- dy-mor-foh-THEE-kuh sin-yoo-AH-tuh
- Description
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Cape marigold is an ornamental, daisy-like annual from South Africa that provides a showy groundcover. Having escaped cultivation in the United States, the plant is found along roadsides or in disturbed areas in California and Arizona. The cape marigold measures 4 to 12 inches tall, with an upright, sprawling habit, reddish stems, light green foliage, and large orange or yellow daisy-like flowers. It is a member of the daisy family (Asteraceae). The genus name, Dimorphotheca, is Greek and derived from three words: dis, meaning "two," morphe, meaning "shape or form," and theka, meaning "fruit." This is interpreted as "fruits with two forms." The fruits produced by the ray florets are wingless, and the fruits produced by the disc florets are flat and 2-winged. The specific epithet, sinnuata, means "wavy edges," and refers to the foliage margins.
Prefers full sun and needs well-drained, sandy soils. Once it is established, it is drought-tolerant. Propagated by seeds and will reseed and colonize, thus producing a colorful display year after year.
The foliage may have shallow lobes or toothed margins. The sun-facing flowers measure up to 3 inches wide in shades of yellow and orange and close at night and on cloudy days. They are not a good candidate for cutting, since the flowers remain closed when brought indoors. Deadheading will help the plant produce the most blossoms.
This plant grows well in rock gardens or dry areas and attracts butterflies and bees. It has naturalized in California and Arizona.
Insects, Diseases, and Other Plant Problems: No significant insect or disease problems. The Cape Marigold is listed as invasive in the Dominican Republic. In California and Australia, this plant is considered a weed.
- See this plant in the following landscape :
- Cultivars / Varieties:
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- Cultivars / Varieties:
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Attributes:
- Genus:
- Dimorphotheca
- Species:
- sinuata
- Family:
- Asteraceae
- Uses (Ethnobotany):
- No known medical uses.
- Life Cycle:
- Annual
- Recommended Propagation Strategy:
- Seed
- Country Or Region Of Origin:
- Namibia to Cape Province
- Distribution:
- Introduced: Arizona, California, France, Germany, New South Wales, Pakistan, Queensland, South Australia, and Western Australia.
- Wildlife Value:
- Flowers attract butterflies and bees.
- Play Value:
- Attractive Flowers
- Colorful
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Whole Plant Traits:
- Plant Type:
- Annual
- Habit/Form:
- Erect
- Growth Rate:
- Medium
- Maintenance:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Occasionally Dry
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Brown/Copper
- Display/Harvest Time:
- Fall
- Fruit Type:
- Achene
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- The ray achenes are pale brown and 4-5 mm long. The disc achenes are pale brown with papery wings, and measure 6-7 mm long. The seeds appear soon after the flowers fade.
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Flowers:
- Flower Color:
- Gold/Yellow
- Orange
- Flower Inflorescence:
- Head
- Solitary
- Flower Value To Gardener:
- Long Bloom Season
- Showy
- Flower Bloom Time:
- Fall
- Spring
- Summer
- Flower Shape:
- Bell
- Cup
- Flower Petals:
- more than 20 petals/rays
- Flower Size:
- 1-3 inches
- Flower Description:
- The flowers measure 2 to 2.5 inches in diameter and are yellow or orange daisy-like blooms. The center or disc florets are orange or yellow. A greenish purple ring appears at the base of the ray florets near the center disc. Each flower has 15 to 25 ray florets. The flowers are cup-shaped and appear at the tip of the stem singularly, blooming from Spring to Fall.
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Leaves:
- Leaf Color:
- Green
- Leaf Value To Gardener:
- Showy
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Oblanceolate
- Oblong
- Leaf Margin:
- Dentate
- Sinuate
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- The leaves are sessile and light green with shallowly lobed margins. They are slender, oblong to oblanceolate, reaching up to 3 inches long and up to 0.75 inches wide, and sparsely pubescent. The margins may be sinuate to coarsely dentate.
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Stem:
- Stem Color:
- Red/Burgundy
- Stem Is Aromatic:
- No
- Stem Form:
- Straight
- Stem Surface:
- Hairy (pubescent)
- Stem Description:
- The stem is erect, sparsely pubescent, and can be a simple stem or sparingly branched, measuring 4 to 12 inches tall.
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Landscape:
- Landscape Location:
- Container
- Patio
- Small Space
- Walkways
- Landscape Theme:
- Cottage Garden
- Drought Tolerant Garden
- Pollinator Garden
- Rock Garden
- Design Feature:
- Border
- Mass Planting
- Attracts:
- Bees
- Butterflies
- Resistance To Challenges:
- Drought
