North America Native Plant

Hooker’s Silene

Botanical name: Silene hookeri

USDA symbol: SIHO

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Hooker’s Silene: A Charming Native Wildflower for West Coast Gardens If you’re looking for a delicate yet resilient native wildflower to grace your West Coast garden, Hooker’s silene (Silene hookeri) might just be the perfect addition. This charming perennial brings a touch of wild beauty to any landscape while supporting ...

Hooker’s Silene: A Charming Native Wildflower for West Coast Gardens

If you’re looking for a delicate yet resilient native wildflower to grace your West Coast garden, Hooker’s silene (Silene hookeri) might just be the perfect addition. This charming perennial brings a touch of wild beauty to any landscape while supporting local wildlife and requiring minimal maintenance once established.

What is Hooker’s Silene?

Hooker’s silene is a native perennial forb that belongs to the carnation family. As a forb, it’s a non-woody flowering plant that dies back to the ground each winter and returns faithfully each spring. Don’t let its delicate appearance fool you—this little wildflower is tougher than it looks and perfectly adapted to West Coast conditions.

Where Does It Naturally Grow?

This lovely native calls the coastal regions of California and southern Oregon home. You’ll find it growing naturally in sandy soils, rocky outcrops, and coastal bluffs where it has adapted to the region’s Mediterranean climate and sometimes harsh coastal conditions.

Why Choose Hooker’s Silene for Your Garden?

There are plenty of reasons to fall in love with this native beauty:

  • Stunning flowers: Delicate white or pale pink blooms with deeply notched petals create an almost ethereal appearance in spring and early summer
  • Pollinator magnet: Butterflies and moths, especially sphinx moths, absolutely adore these flowers
  • Low maintenance: Once established, it’s remarkably drought tolerant and requires minimal care
  • Native benefits: Supporting local ecosystems while reducing water usage
  • Versatile design element: Perfect for rock gardens, coastal landscapes, or native plant gardens

Perfect Garden Settings

Hooker’s silene shines in several garden styles:

  • Rock gardens: Its low-growing habit and preference for well-draining soil make it ideal for tucking between rocks
  • Coastal gardens: Naturally adapted to coastal conditions, it thrives in seaside landscapes
  • Native plant gardens: A wonderful addition to any collection of regional natives
  • Wildflower meadows: Adds delicate texture and color to naturalized areas

Growing Conditions and Care

The good news is that Hooker’s silene isn’t particularly fussy about its growing conditions, as long as you keep a few key preferences in mind:

Soil Requirements

Well-draining soil is absolutely essential. Sandy or rocky soils work best, mimicking its natural coastal habitat. Heavy clay soils that hold water will likely spell trouble for this drought-adapted native.

Light Needs

Full sun to partial shade works well, though it tends to flower most prolifically in sunnier locations.

Water Needs

Once established, this plant is remarkably drought tolerant. During its first year, provide regular water to help it establish, then gradually reduce watering. Mature plants typically thrive with minimal supplemental irrigation.

Climate Considerations

Hooker’s silene is hardy in USDA zones 8-10, making it perfect for mild coastal and interior regions of California and southern Oregon.

Planting and Care Tips

Getting your Hooker’s silene off to a good start is easier than you might think:

  • Best planting time: Fall planting allows the roots to establish during cooler, wetter months
  • Spacing: Allow adequate space for air circulation to prevent moisture-related issues
  • Mulching: Use a light, well-draining mulch like decomposed granite or small pebbles rather than heavy organic mulches
  • Fertilizing: Generally unnecessary—these plants are adapted to lean soils
  • Pruning: Simply remove spent flowers if desired, though leaving seed heads can provide food for birds

Supporting Wildlife

One of the most rewarding aspects of growing Hooker’s silene is watching the wildlife it attracts. The flowers are particularly beloved by night-flying sphinx moths, and you might be lucky enough to witness these fascinating pollinators in action during evening hours. Butterflies also visit during the day, adding movement and life to your garden.

Is Hooker’s Silene Right for Your Garden?

This native wildflower is an excellent choice if you:

  • Live in coastal California or southern Oregon
  • Want to support native wildlife and pollinators
  • Prefer low-maintenance, drought-tolerant plants
  • Have well-draining soil or are willing to amend heavy soils
  • Enjoy delicate, naturalistic garden aesthetics

However, it might not be the best fit if you have heavy clay soil with poor drainage or live outside its natural climate range.

The Bottom Line

Hooker’s silene proves that native plants can be both beautiful and practical. This charming wildflower offers delicate beauty, supports local wildlife, and asks for very little in return. For West Coast gardeners looking to create sustainable, wildlife-friendly landscapes, it’s definitely worth considering. Just remember to source your plants responsibly from reputable native plant nurseries to ensure you’re getting true Silene hookeri and supporting ethical horticultural practices.

Hooker’s Silene

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Caryophyllaceae Juss. - Pink family

Genus

Silene L. - catchfly

Species

Silene hookeri Nutt. - Hooker's silene

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA