Oenothera Species, Bigfruit Evening Primrose, Evening Primrose, Missouri Primrose, Ozark Sundrops

Oenotheramacrocarpa

Family
Onagraceae (on-uh-GRAY-see-ee)
Genus
Oenothera (ee-no-THEE-ruh)
Species
macrocarpa (ma-kro-KAR-pa)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
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)
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Alpines and Rock Gardens
Groundcovers
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
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
Seed Collecting
Regional

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

Citrus Heights, California

Richmond, California

Englewood, Colorado

Wilmington, Delaware

Divernon, Illinois

Oak Lawn, Illinois

Waukegan, Illinois

Owensboro, Kentucky

Tyngsboro, Massachusetts

Turner, Michigan

Belton, Missouri

Cole Camp, Missouri

Elsberry, Missouri

Piedmont, Missouri

Saint Louis, Missouri

Juniata, Nebraska

Henderson, Nevada

Spring Creek, Nevada

Fredericton, New Brunswick

Santa Fe, New Mexico

Dunkirk, New York

Winston Salem, North Carolina

Madison, Ohio

Wynnewood, Pennsylvania

Abilene, Texas

Mc Kinney, Texas

Leesburg, Virginia

Appleton, Wisconsin

Owen, Wisconsin

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Featured Videos

Gardener's Notes:

1
positive
2
neutrals
0
negative
Sort By:
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J
J
Palmyra, IL (Zone 5b) | January 2005 | neutral

In Illinois, Missouri Evening Primrose has been observed in natural habitat in only St. Clair county, where it may be extirpated. Habitat...Read More

T
Mercer, PA (Zone 5a) | October 2004 | neutral

This is a very attractive and showy flower making it a nice addition to a wildflower garden. Well suited for a rock garden. There are 4 d...Read More

H
H
Appleton, WI | July 2004 | positive

This is a beautiful no maintenance well groomed plant. Their huge flowers offer a large splash of color and and certainly add to the "cu...Read More

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