Botanical Name: Oenothera speciosa 'Siskiyou'
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Common Name: Siskiyou Mexican Evening Primrose  
Plant photo of: Oenothera speciosa 'Siskiyou'
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Water Saving Tip:

Fix leaking sprinklers, valves, and pipes.

One broken spray sprinkler can waste 10 gallons per minute - or 100 gallons in a typical 10 minute watering cycle.

  • Anatomy

  • Culture

  • Design

Plant Type

Ground cover, Perennial

 

Height Range

1-3'

 

Flower Color

Pink

 

Flower Season

Spring, Summer

 

Leaf Color

Dark Green

 

Bark Color

n/a

 

Fruit Color

n/a

 

Fruit Season

n/a

Sun

Full, Half

 

Water

Very Low, Extra in Summer

 

Growth Rate

Fast

 

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

 

Soil Condition

Average, Rich, Poor, Well-drained, Moist

 

Soil pH

Neutral

 

Adverse Factors

n/a

Design Styles

Meadow, Mediterranean, Ranch, Seascape, Spanish, Tropical, Woodland

 

Accenting Features

Showy Flowers

 

Seasonal Interest

Spring, Summer

 

Location Uses

Entry, Perennial Border, Parking Strip

 

Special Uses

n/a

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer:

  • Description

  • Notes

'Siskiyou' is a O. s. selection with rosy pink, day-blooming flowers, a low profile (8 to 10 inches tall) and a strong constitution. Blooms May through August. Spreads rapidly, so best use is in open areas, slopes, and parkstrips.
Grow in full sun in well drained soil. Tolerates clay or sandy soils, as long as they are well drained. Frost tolerant to 10 F. Though drought tolerant, the plants will bloom over a longer season if they receive periodic watering, though over-watering may result in diminished vigor and flowering.