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Red Ribbons
Clarkia concinna

About Red Ribbons (Clarkia concinna) Clarkia concinna is a species of wildflower in the Onagraceae (Evening Primrose) family known as Red Ribbons. It is endemic to California, where it can be found in the northern Coast Ranges from Santa Clara County to Humboldt County, and in the Sierra foothills. This is an annual plant with erect, herbaceous stems. The distinctive flowers have four looping sepals of red or dark pink which look like loops of silk ribbon. The longer, pink petals have three lobes which are usually streaked with white.
Plant Description
Plant Type
Annual herb

Max. Height
1.3 ft (0.4 m)

Max. Width
1 ft (0.3 m)

Flower Color
Pink, Purple, White, Red

Flowering Season
Spring, Summer

Native Status

Natural Setting
Site Type
Relatively dry, wooded foothills and mountains to 4,000 ft.

Sun, Part Shade

Elevation ?
7' - 4217'

Annual Precip. ?
18.5" - 117.4"

Summer Precip. ?
0.20" - 3.43"

Coldest Month ?
38.6° F - 51.6° F

Hottest Month ?
60.9° F - 75.8° F

Humidity ?
0.08 vpd - 25.12 vpd

Soil Description
Reportedly does not do well in clay


Cold Tolerance(° F)
Tolerates cold to 15° F

Sunset Zones ?
7, 8, 9, 14, 15*, 16*, 17*, 19, 20, 21, 22, 23, 24*

Companion Plants
Use with other annuals or herbaceous perennials such as Snapdragon (Antirrhinum sp.), Sitka Columbine (Aquilegia formosa), Milkweed (Asclepias sp.), Chinese Houses (Collinsia heterophylla), Western Wallflower (Erysimum capitatum), Poppy (Eschscholzia sp.), Blue Field Gilia (Gilia capitata); with geophytes such as onion (Allium sp.), Mariposa Lily (Calochortus sp.); and with small succulents such as Dudleya sp.

Wildlife Attracted
The flowers attract numerous insects, including the Small Apollo butterfly

Landscaping Information
Ease of Care
Moderately Easy

Water Requirement ?
Very Low
Extremely Low
Very Low
Moderate - High

Moderately Popular

Max. Summer Water ?
No Summer Water
Keep moist

Propagation ?
Sow seeds in late summer to fall and do not thin seedlings. Crowding appears to encourage more blooms.

Common uses
Butterfly Gardens, Bee Gardens

Nursery Availability
Commonly Available

Other Names
Common Names
Raiche's Clarkia

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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