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Info Sheet PDF
Mexican Evening Primrose

Oenothera speciosa 'Siskiyou'

Mature Height*: 


Mature Width*: 

3-8 ft

USDA Hardiness Zone Range:

5 to 9

Hardy to: 


Water Requirements: 

Moderate Water, Drought Tolerant

Shade Requirements:

Full Sun, Partial Shade, Shade

Native to:

Grasslands of Missouri, Nebraska, Kansas, Oklahoma, Texas to northeastern Mexico

*Height and width estimated for growth in the Tucson, AZ area. True sizes may vary.