Clarkia rubicunda
A California-endemic, central coast native annual in the Onagraceae family, it bears pink- to purplish four-petaled cup-shaped blooms with a bright red center from late spring to summer, grows in full sun with low water, is drought-tolerant, and attracts bees, butterflies, and moths while readily reseeding.
Common Names
Farewell To Spring, Ruby Chalice Clarkia, Rubinclarkia, Satin Flower, Fairyfan, Ruby Chalice
Summary
Ruby chalice Clarkia is a California-endemic annual wildflower native to the central coast, with an erect to decumbent habit reaching about 1–3 ft tall. It features goblet-shaped four-petalled flowers pink to lavender with a red or purplish base and sometimes a dark center, blooms May–Aug, and has lanceolate to elliptic leaves; the plant self-seeds readily and provides striking displays in openings such as woodlands, chaparral, and coastal scrub.
Thrives in full sun to light shade with very low water needs, requiring at most about monthly irrigation in summer after establishment; soil is adaptable, including clay; hardy to 15°F; suitable for containers and ideal for pollinator gardens and cut-flower plantings; deer resistant; Sunset zones 7, 8, 9, 14–17, 22–24.
Lifecycle
Annual
Height
1-5 feet
Spread
1 1/2 to 2 1/2 ft
Hardiness Zones
Zones 1-12
Sunlight Requirements
Ideally full sun; tolerates partial sun to partial shade.
Soil Type
Well-drained soil, sandy or loamy substrates rich in organic matter.
Soil Drainage
Well-drained soil.
Bloom Color
Pink to lavender
Bloom Time
Spring to Summer
Foliage Color
Green
Fall Foliage Color
Green
Leaf Lifecycle
Deciduous
Growth Rate
Fast
Seasons of Interest
Spring and Summer
Propagation Methods
Seeds (fall sowing; self-seeding; self-sows strongly; collect seeds by allowing pods to dry on the plant)
Attracts Wildlife
Attracts bees and butterflies
Taxonomy
- Taxonomic Rank
- Species
- Author
- (Lindl.) F.H.Lewis & M.E.Lewis
- Publication
- Madroño 12: 34 (1953)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Myrtales
- Family
- Onagraceae
- Genus
- Clarkia
Synonyms
Oenothera rubicunda Clarkia rubicunda subsp. blasdalei Godetia rubicunda Clarkia rubicunda subsp. rubicunda Godetia blasdalei