Photo by Melody

PlantFiles: Evening Primrose
Oenothera versicolor 'Sunset Boulevard'

Family: Onagraceae (on-uh-GRAY-see-ee) (Info)
Genus: Oenothera (ee-no-THEE-ruh) (Info)
Species: versicolor (VER-suh-kuh-lor) (Info)
Cultivar: Sunset Boulevard

Synonym:Oenothera campylocalyx
Synonym:Oenothera coccinea
Synonym:Oenothera curvifolia
Synonym:Oenothera fusca
Synonym:Oenothera scabra

2 vendors have this plant for sale.

24 members have or want this plant for trade.


12-18 in. (30-45 cm)

6-9 in. (15-22 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; sow indoors before last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

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By kniphofia
Thumbnail #1 of Oenothera versicolor by kniphofia

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By Evert
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There are a total of 15 photos.
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1 positive
3 neutrals
No negatives

Gardeners' Notes:

Neutral pixie62560 On Nov 21, 2010, pixie62560 from South China, ME (Zone 5a) wrote:

Beautiful but not z5 hardy as far as my area of Maine. I tried these 2x and lost them after each winter. I may try one more time, but thats my limit. :(

Positive jg48650 On Jun 23, 2008, jg48650 from Pinconning, MI (Zone 6a) wrote:

This is one of my favorite evening primroses. Last year, I bought one plant. It bloomed for three months, at least, and the stems were about 4' long. This year, I thought the plant hadn't survived, until I realized that it had self-sowed very easily. I probably have ten new plants, the first of which has just started blooming.

Neutral picante On Feb 28, 2007, picante from Helena, MT (Zone 4b) wrote:

I started these from seed indoors. They were lovely, and they did self-sow, but it was August before the new ones came up! Needless to say, I didn't get flowers before the frosts came on.

Neutral Baa On Oct 1, 2001, Baa wrote:

A perennial from the Americas.

Has toothed, mid green, lance shaped leaves with a thick red vein running straight through the middle. Stems also have a reddish colouration. Bears saucer shaped, 4 petalled, brick red-orange flowers in late Summer.

Flowers August-October.

Prefers a very well drained, poorish soil in full sun and self seeds where happy. Not always hardy in frost prone areas but produces many seeds, so keep collecting them just in case.

Ours grows in a container and nearly every year gets pulled up as a weed until I remember what it is.


This plant has been said to grow in the following regions:

Barbourville, Kentucky
Pinconning, Michigan
New Milford, New Jersey
Newark, Ohio
Allentown, Pennsylvania
Wilkes Barre, Pennsylvania
Magna, Utah
Vancouver, Washington
Twin Lakes, Wisconsin

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