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Oenothera Species, Fremont's Evening Primrose, Evening Primrose

Oenotheramacrocarpa subsp. fremontii

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Family
Onagraceae (on-uh-GRAY-see-ee)
Info
Genus
Oenothera (ee-no-THEE-ruh)
Info
Synonym
Megapterium fremontii
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
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)
Danger

Unknown - Tell us

Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Bronze
Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements

Unknown - Tell us

Patent Information
Non-patented
Propagation Methods
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Lincoln, Nebraska

Laramie, Wyoming

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3 members have or want this plant for trade

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Gardener's Notes:

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KSBaptisia
Beatrice, NE (Zone 5b) | November 2008 | positive

A very attractive subspecies (sometimes listed as a species in its own right) of Big Fruit Evening Primrose. It has very limited natural...Read More

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