Oenothera, Evening Primrose, Sundrops 'Sunset Boulevard'

Oenotheraversicolor

Family
Onagraceae (on-uh-GRAY-see-ee)
Genus
Oenothera (ee-no-THEE-ruh)
Species
versicolor (VER-suh-kuh-lor)
Synonym
Oenothera campylocalyx
Oenothera coccinea
Oenothera fusca
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
Hardiness
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)
Danger
N/A
Bloom Color
Orange
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
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
Regional

This plant is said to grow outdoors in the following regions:

Eureka, California

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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Featured Videos

Gardener's Notes:

1
positive
3
neutrals
0
negative
Sort By:
Sort By:
P
South China, ME (Zone 5a) | November 2010 | neutral

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 tha...Read More

J
Pinconning, MI (Zone 6a) | June 2008 | positive

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 ...Read More

P
Helena, MT (Zone 4b) | February 2007 | neutral

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 sa...Read More

B
B
Baa
| October 2001 | neutral

A perennial from the Americas.

Has toothed, mid green, lance shaped leaves with a thick red vein running straight through ...Read More

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