Silver Blade Evening Primrose
Oenothera macrocarpa var. incana
Size: Standard
6-10 inches high x 15-18 inches wide
Zone 4
Full Sun to Part Shade
Out of stock
Plant Select 1999 and still a champion of the xeric garden. A native of the southern Great Plains, it has silvery-blue leaves complimented by huge, clear yellow flowers from June through autumn. Handles clay soil so long as it’s kept on the dry side.
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Throughout this site, the following are used as guidelines for watering established plants:
These truly xeric plants can live with our 12 inches of natural annual precipitation and only need a winter watering during a multi-year drought, but they will thrive with a monthly watering. Overwatering will kill some of these. These plants are adapted to intermittent deep
watering with soil drying to a depth of a few inches between waterings. Watering frequency may be every couple of weeks during the active growing season and maybe only one winter watering for optimal care. These plants need regular watering somewhat like a bluegrass lawn so that
they never dry to depth in the root system during the active growing season, and need occasional winter watering to prevent root dessication and resultant plant
death. About sizes of our plants:
Sizes indicated with a # are roughly the equivalent in gallonage; so a #2 is about a 2 gallon pot size; b&b stands for balled and burlapped.