Oenothera lindheimeri 'Siskiyou Pink'
Light: Full sun to light shade; afternoon shade is beneficial in Phoenix, especially near heat-reflecting walls or pavement.
Water: Low to moderate water once established; water deeply, then allow soil to dry between waterings. Irrigate more regularly during establishment and extreme summer heat.
Soil: Well-drained sandy or gravelly soil; tolerates lean and alkaline soils. Avoid heavy, poorly drained soil and excessive fertilizer.
Mature size: 2–3 feet tall and wide, including flowering stems.
Bloom: Blooms from spring through fall, often with reduced flowering during Phoenix’s hottest summer weather.
Evergreen / deciduous: Semi-evergreen in mild Phoenix winters; may die back after freezing weather.
Growth rate: Moderate to fast during the growing season.