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Siskiyou Evening Primrose

Oenothera speciosa 'Siskiyou'

Delicate, light-pink flowers belie the tough nature of this plant that thrives with little or no care. Great groundcover for dry slopes and other low-maintenance areas. Blooms in daytime. Perennial.
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Full sun

Once established, needs only occasional watering.

We no longer grow this plant

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Botanical Pronunciationee-no-THEE-rah ber-lan-DI-eri
LoreThe evening primrose is pollinated primarily by moths and is open at dusk and dawn to receive them.
Average Size at MaturityFast growing to 8 to 10 in. tall, widely spreading, can be invasive.
Bloom TimeSummer
Design IdeasOnce introduced to your garden, this rugged pink beauty is there to stay. Spreading vigorously, it makes a great groundcover or low-growing perennial. Because it is very drought resistant, it's a natural in the western native garden. Use it as a bright and reliable filler, spot cover and super solution for difficult dry places. Use at the edges of natural meadows and in rock gardens, spot into dry streambeds or mass around landscape boulders. Perfect on mounds and slopes, where it is assured perfect drainage. Equally at home in traditional perennial borders and cottage gardens.
Deciduous/ EvergreenHerbaceous
Flower AttributeFragrant, Showy Flowers
Flower ColorPink
Foliage ColorGreen
Garden StyleCottage, Mediterranean, Rustic
Growth HabitSpreading
Growth RateFast
Landscape UseBorder, Container, Firescaping/Firewise, Rock Garden
Light NeedsFull sun
Soil NeedsFlower & Rose Food
Special FeatureEasy Care, Extreme Cold Hardiness, North American Native Selection, Tolerates Poor Soils, Waterwise, Bird Friendly
Water NeedsLow
Watering NeedsOnce established, needs only occasional watering.
Companion PlantsIn night gardens, try this pink-flowering Evening Primrose with other moth-friendly species, such as the showy Golden Sword Yucca (Yucca filamentosa 'Golden Sword'). To attract butterflies during the day, combine with the showy Petite PlumTM Dwarf Butterfly Bush (Buddleia davidii nanhoensis 'Monum'). Then insert the cooler colors of Winifred Gillman Sage (Salvia clevelandii 'Winifred Gillman') and Otto Quast Spanish Lavender (Lavandula stoechas 'Otto Quast').

Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Watering can be reduced after establishment. Feed with a general purpose fertilizer before new growth begins in spring.

This Plant's Growing Zones: 4-8

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant