General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 12 - 15 inches
Plant Spread: 18 - 30 inches
Leaves: Unusual foliage color
Fruit: Showy
Flowers: Showy
Flower Color: Yellow
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Wildlife Attractant: Bees
Butterflies
Awards and Recognitions: Other: 1999 Plant Select Winner

Image
Trade name information:
Trade Name: Silver Blade®
Cultivar name: 'Silver Blade'
Common names
  • Evening Primrose
  • Missouri Evening Primrose
Botanical names
  • Accepted: Oenothera macrocarpa subsp. incana
  • Synonym: Oenothera missouriensis var. incana

Photo Gallery
Location: My Garden, Utah
Date: 2014-08-13
Location: My Garden, Utah
Date: 2014-08-19
closeup--showing 'silver'
Location: My Garden, Utah
Date: 2014-08-19

Photo courtesy of Annie's Annuals and Perennials

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