Hooker's Evening Primrose, Oenothera elata ssp. hookeri (2024)

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Hooker's Evening Primrose

Oenothera elata ssp. hookeri

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13 Nurseries Carry This Plant

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About Hooker's Evening Primrose (Oenothera elata ssp. hookeri) 13 Nurseries Carry This Plant
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Hooker's Evening Primrose (Oenothera elata ssp. hookeri) is a native perennial herb in the Onagraceae (Evening Primrose) family that grows primarily along the coast between San Francisco and San Diego and northern Baja. It is fast growing and moderately long-lived. It grows in an upright form to a height of 5 feet, with active growth during the summer. Flowers are yellow and striking, and bloom in the late summer. Leaves are medium green and deciduous. Its form may be either upright or sprawling. It tends to grow in moist places, at elevations from sea level to 7,000 feet where it is a pioneer species. However, it is also somewhat drought-tolerant in garden situations. In the wild it is usually crowded out over time by more woody trees or shrubs. It spreads by prolific seed production, which also makes it attractive to many seed-eating birds.
Plant Description

Hooker's Evening Primrose, Oenothera elata ssp. hookeri (1)

Plant Type

Perennial herb


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (2)

Size

5 ft tall
5 ft wide


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (3)

Form

Upright, Spreading


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (4)

Growth Rate

Fast


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (5)

Dormancy

Winter Deciduous


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (7)

Flower Color

Yellow


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (8)

Flowering Season

Summer, Fall


Wildlife Supported

Native bees, lined sphinx moth, birds, butterflies
Hooker's Evening Primrose, Oenothera elata ssp. hookeri (9) Hooker's Evening Primrose, Oenothera elata ssp. hookeri (10)


Butterflies & moths hosted ( 15 likely * ) SHOW ALL

*

White-lined Sphinx Hyles lineataHyles lineata

*

Dusky Raisin Moth Ephestiodes gilvescentellaEphestiodes gilvescentella

*

Pacific Green Sphinx Moth Proserpinus lucidusProserpinus lucidus

*

Phaeton Primrose Sphinx Moth Euproserpinus phaetonEuproserpinus phaeton

*

Common Eupithacia Eupithecia miserulataEupithecia miserulata

*

Ridings' Forester Moth Alypia ridingsiiAlypia ridingsii

*

Clark's Day Sphinx Moth Proserpinus clarkiaeProserpinus clarkiae


Landscaping Information

Hooker's Evening Primrose, Oenothera elata ssp. hookeri (18)

Sun

Part Shade, Full Sun


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (19)

Moisture

Low, Moderate - High,


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (20)

Summer Irrigation

Max 1x / month once established


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (21)

Nurseries

Carried by 13


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (22)

Ease of Care

Very Easy


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (23)

Cold Tolerance

Tolerates cold to 35° F


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (24)

Soil Drainage

Fast, Medium, Slow


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (25)

Soil Description

Adaptable to a variety of soil types, but does best in moist areas.. Soil PH: 4 - 7


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (26)

Companion Plants

Hooker's primRose can reseed vigorously, so be aware when planting it nearby other flowering plants. Taller plants, however, can out-compete. Consider using White Brodeiaea (Triteleia hyacinthina) or the Pitkin Marsh Lily (Lilium pardalinum ssp. pitkinense).


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (27)

Maintenance

Host to the bacteria Xylella fastidiosa.


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (28)

Propagation?

Propagate plans from untreated seeds and sow seeds in the fall. Since this species is a biennial, so be sure to plant the seeds two successive years to establish a continuously flowering population. This primrose will vigorously reseed until proper conditions.


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (29)

Sunset Zones?

5, 6, 7, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*


Natural Setting

Hooker's Evening Primrose, Oenothera elata ssp. hookeri (30)

Site Type

Moist places, disturbed areas, coastal areas.


Hooker's Evening Primrose, Oenothera elata ssp. hookeri (31)

Climate

Annual Precipitation: 10.4" - 51.7", Summer Precipitation: 0.17" - 2.70", Coldest Month: 28.0" - 54.9", Hottest Month: 56.1" - 83.0", Humidity: 0.48" - 33.70", Elevation: -3" - 7385"


Alternative Names

Hooker's Evening Primrose, Oenothera elata ssp. hookeri (32)

Botanical Names: Oenothera hookeri
Common Names: Common Evening Primrose, Hooker's Eveningprimrose, Showy Evening Primrose



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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 PageCalPhotosWikipediaCalflora



Hooker's Evening Primrose, Oenothera elata ssp. hookeri (2024)
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