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Calylophus hartwegii (Hartweg's sundrops) | NPIN
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Calylophus hartwegii (Hartweg's sundrops)
Bransford, W.D. and Dolphia

Calylophus hartwegii

Hartweg's sundrops, Western Primrose

Onagraceae (Evening-Primrose Family)

USDA Symbol: caha14

USDA Native Status:

 

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Retention: Deciduous
Fruit:
Size Class: 0-1 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov

Distribution

USA: AZ , CO , KS , NM , OK , TX
Native Habitat: Prairie, Plains, Meadows, Pastures, Savannahs

Growing Conditions

Water Use: Low
Light Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Clay, Clay Loam, Medium Loam, Sandy Loam, Sandy, Limestone-based, Gypseous, Caliche type
Conditions Comments: Somewhat upright and bushy plant with narrow leaves and soft yellow cup flowers that open in the evening and close the next afternoon shortly before new flowers open. This plant prefers fast draining soil and loves reflected heat making it an excellent choice for a rock garden or rocky slope. Deadheading and giving it some summer water will prolong the flowers. Cut back to 6-8 in the autumn to reshape.

Benefit

Use Ornamental: Perennial garden, Color, Blooms ornamental, Rock gardens, Showy, Attractive
Conspicuous Flowers: yes
Nectar Source: yes

Propagation

Propagation Material: Seeds

Bibliography

Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

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Recommended Species Lists

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Additional resources

USDA: Find Calylophus hartwegii in USDA Plants
FNA: Find Calylophus hartwegii in the Flora of North America (if available)
Google: Search Google for Calylophus hartwegii

Metadata

Record Modified: 2007-01-01
Research By: DEW, JSC

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