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)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Succulent
Velvet/Fuzzy
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)
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Blooms repeatedly
Other Details
Category
Alpines and Rock Gardens
Annuals
Biennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
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
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
Regional

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

Riverside, California

San Francisco, California

Derby, Kansas

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Gardener's Notes:

2
positives
3
neutrals
0
negative
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C
(Zone 8a) | September 2010 | positive

This came in a packet of mixed seeds from Chilterns. I left it growing in a nursery bed for four months while I went back to Ireland. It ...Read More

H
H
San Antonio, TX (Zone 8b) | April 2008 | neutral

I have not grown this plant. Chilean evening primrose, South American evening primrose, fragrant evening primrose, sweet sundrop (Oenoth...Read More

S
Oklahoma City, OK (Zone 7a) | August 2004 | neutral

Red buds burst open into large, fragrant yellow flowers. This hardy plant is a biennial.

W
Ashville, OH (Zone 5b) | September 2003 | neutral

I have this plant in zone 5 and I have seen humming bird moths on it twice in the past two years.This is a weed in Ohio but I love it.Wan...Read More

N
N
| August 2003 | positive

I am in living in Ireland and got seeds from my aunt living in Essex, England and it has grown very well. As the name implies it is supp...Read More

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