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Marcus, Joseph A. (Austin, TX)
Ratibida columnifera (Nutt.) Woot. & Standl.
Mexican hat, Prairie coneflower, Upright prairie coneflower, Red-spike mexican-hat, Long-headed coneflower, Thimbleflower
Synonyms: Ratibida columnaris
USDA Symbol: RACO3
USDA Native Status: Native to U.S.
A plant branched and leafy in lower part with long leafless stalks bearing flower heads of 3-7 yellow or yellow and red-brown, drooping rays surrounding a long, red-brown central disk. Its sombrero-shaped flower heads, is usually 1 1/2 ft. tall but can reach 3 ft. Flower petals range from dark red and yellow, to all red or all yellow. The flowers central brown disk protrudes 1/2 to 2 in. above the drooping petals. Leaves on the lower portion of the stem are feathery and deeply cleft.
The colorful flower heads, resembling the traditional broad-brimmed, high-centered hat worn during Mexican fiestas, often bloom by the thousands. Green Prairie Coneflower (R. tagetes) has a spherical or oblong central disk and leaves closer to the flower head.
Plant Characteristics
Duration: Perennial Habit: Herb Root Type: Tap Leaf Retention: Deciduous Size Class: 1-3 ft.
Fruit Type: Achene Leaf Color: Green
Flower Size: 2 inches
Bloom Information
Bloom Color: Orange , Yellow , Brown
Bloom Time: May , Jun , Jul , Aug , Sep , Oct
Bloom Notes: Late spring through July; often into August and September if moisture is available.
Distribution
USA: AL , AZ , AR , CO , CT , FL , GA , ID , IL , IN , IA , KS , LA , MA , MI , MN , MS , MO , MT , NE , NJ , NM , NY , NC , ND , OH , OK , PA , SC , SD , TN , TX , UT , WV , WI , WY
Canada: AB ,
BC ,
MB ,
SK Native Distribution: S.e. B.C. to AZ & Mex., e. to WI, IL, MO, AR, OK & TX; naturalized eastward
Native Habitat: Prairie, Plains, Meadows, Pastures, Savannahs, Roadsides
USDA Native Status: L48(N), CAN(N) Growing Conditions
Water Use: Medium
Light Requirement: Sun
Soil Moisture: Moist , Dry
Soil pH: Circumneutral (pH 6.8-7.2)
CaCO3 Tolerance: Low
Drought Tolerance: High
Soil Description: Various well-drained, usually calcareous soils. Also Limestone-based, Caliche type, Clay, Clay Loam, Medium Loam, Sandy Loam, Sandy.
Conditions Comments: This is a drought tolerant plant that withstands competition. Plants with rich, brown-purple
ray flowers are form pulcherima. Mexican Hat is a fast growing wildflower that is not fussy about soils and is easy to grow from seed. Showy flowers bloom over a long season. Foliage has a strong odor that repels deer. CAUTION: it grows aggressively and may push out other weaker species.
Texas comments: Mexican hat is a fast growing and drought tolerant wildflower that withstands competition. It is not fussy about soils and is easy to grow from seed. Its showy flowers bloom over a long season and its foliage has a strong odor that repels deer. It also makes a great cut flower. CAUTION: it grows aggressively and may push out other weaker species.
Benefit
Use Ornamental: Color, Attractive, Blooms ornamental, Wildflower meadow,
Perennial garden, Rocky hillside, Patio pot plant
Use Wildlife: Nectar-Bees, Nectar-Butterflies, Nectar-insects, Seeds-Granivorous birds, Deer will eat this flower
Use Food: Beverage tea from leaves. (Kindscher)
Use Medicinal: Tea from leaves and stalks used for stomach ache and pain in side. Tea from flower used for headache. Boiled leaves and stems used as wash for snakebite and poison ivy. (Kindscher)
Conspicuous Flowers: yes
Nectar Source: yes
Deer Resistant: High
Propagation
Propagation Material: Seeds
Description: Very easy to propagate from seed in spring or fall though a fall seeding is recommended. Seeds do not have to be treated but may benefit from a period of stratification. Plants from seed usually bloom the second year. Be sure the seed is in good contact with the soil by lightly raking it into loose topsoil. Seeding rate is two to four pounds per acre. There are approximately 1,230,000 seeds per pound.
Seed Collection: Seed is available commercially or can be collected in late summer. Collect seed from several plants to increase the spectrum of color. If possible, collect seed from plants with solid yellow
ray petals to contrast with plants with reddish-brown
ray plants.
Seed Treatment: Stratify at 40 degrees for 9 weeks.
Commercially Avail: yes
Maintenance: Supplemental watering may be required if the winter and spring are unusually dry. Watering in summer often extends the flowering period. After flowering ceases, allow seed to completely mature (let cones become dry and brown) before mowing for reseeding or collecting seed to plant in another area.
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Metadata
Record Modified: 2009-02-18
Research By: NPIS, ADA
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