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Oenothera Species, Largeflower Evening Primrose, Showy Evening Primrose

Oenotheragrandis

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Family
Onagraceae (on-uh-GRAY-see-ee)
Info
Genus
Oenothera (ee-no-THEE-ruh)
Info
Species
grandis (GRAN-dees)
Info
Synonym
Oenothera laciniata var. grandiflora
Oenothera laciniata var. grandis
Raimannia grandis
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage

Unknown - Tell us

Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
N/A
Bloom Color
Pale Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Annuals
Biennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements

Unknown - Tell us

Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Properly cleaned, seed can be successfully stored
Regional

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

Austin, Texas

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