Oenothera Species, Evening Primrose, Chilean Evening Primrose, Sweet Sundrops
Oenotherastricta

Family: Onagraceae (on-uh-GRAY-see-ee)
Genus: Oenothera (ee-no-THEE-ruh)
Species: stricta (STRIK-tuh)

Category
Alpines and Rock Gardens
Annuals
Biennials

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

Sun Exposure
Full Sun

Foliage
Herbaceous
Succulent
Velvet/Fuzzy

Foliage Color

Height
36-48 in. (90-120 cm)

Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Hardiness
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

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
Blooms repeatedly

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
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds