Name	Oenethera fremontii "Lemon Silver"
Hardiness	Zone 4
Light	Full sun
Height	12"
Bloom Time	June to September
Uses	Groundcover, edging
Qualities	A day blooming evening primrose with light, clear yellow, tissue paper textured flowers.  Flowers are large, lemon yellow, and cup-shaped.  Lance-shaped foliage is low and silver.  Likes hot, bright, dry conditions with good drainage.

Name	Oenethera missouriensis
Hardiness	Zone 4
Light	Full sun
Height	10-12"
Bloom Time	June to September
Uses	Groundcover, edging
Qualities	Low prostrate grower with red stems and lemon yellow cup shaped flowers in summer.

Name	Oenethera berlanderi "Siskiyou"
Hardiness	Zone 4
Light	Full sun
Height	10-12"
Bloom Time	June to September
Uses	Groundcover, edging, massed
Qualities	Low prostrate grower with soft pink cup shaped prairie flowers.  Blooms continuously, and is a vigorous grower.