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Oenothera fruticosa subsp. glauca (0. f. youngii; 0. tetragona) / Evening Primrose

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     Oenothera fruticosa subsp. glauca (0. f. youngii; 0. tetragona)
 
Hardiness zone 3
Maximum height 50 cm / 20"
Maximum width 25-30 cm / 10-12"
ExposureSun
Plants attracting birdsNo
Fragrant plantsNo
Notes : Vigorous with bright yellow cup-shaped flowers from June to August. Tolerant of hot dry soils.