Photo by Melody

PlantFiles: Evening Primrose
Oenothera macrocarpa subsp. fremontii 'Lemon Silver'

Family: Onagraceae (on-uh-GRAY-see-ee) (Info)
Genus: Oenothera (ee-no-THEE-ruh) (Info)
Species: macrocarpa subsp. fremontii
Cultivar: Lemon Silver

Synonym:Megapterium fremontii
Synonym:Oenothera fremontii

One member has or wants this plant for trade.


6-12 in. (15-30 cm)

9-12 in. (22-30 cm)

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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:
Bright Yellow

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


Other details:
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By bugaboo22
Thumbnail #1 of Oenothera macrocarpa subsp. fremontii by bugaboo22

By growin
Thumbnail #2 of Oenothera macrocarpa subsp. fremontii by growin


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive bugaboo22 On May 29, 2004, bugaboo22 from Hightstown, NJ (Zone 6b) wrote:

This is a beautiful little plant to have in my garden. It's got a low mounded habit about 6" tall and large bright yellow flowers (~2") that fade to orange. It's a moderately slow spreader and relatively easy to divide. So far, no problem with pests. This is one of my favorites!


This plant has been said to grow in the following regions:

Hightstown, New Jersey

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