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)

Category
Alpines and Rock Gardens
Groundcovers
Perennials

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage

Foliage Color
Bronze

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)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger

Bloom Color
Bright Yellow

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Bloom Size

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

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