North America Native Plant

Hooker’s Silene

Botanical name: Silene hookeri hookeri

USDA symbol: SIHOH

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Silene ingramii Tidestr. & Dayton (SIIN7)   

Hooker’s Silene: A Charming West Coast Native for Rock Gardens If you’re looking to add a touch of understated elegance to your Pacific Coast garden, Hooker’s silene (Silene hookeri hookeri) might just be the perfect little native plant you’ve been searching for. This delicate perennial belongs to the carnation family ...

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

If you’re looking to add a touch of understated elegance to your Pacific Coast garden, Hooker’s silene (Silene hookeri hookeri) might just be the perfect little native plant you’ve been searching for. This delicate perennial belongs to the carnation family and brings a subtle beauty that’s perfectly suited to West Coast gardening conditions.

What Makes Hooker’s Silene Special?

Hooker’s silene is a true West Coast native, naturally occurring in California and Oregon. As a perennial forb, this plant lacks woody stems but returns year after year, making it a reliable addition to your garden. You might also see it listed under its synonym, Silene ingramii, in some older gardening references.

This charming native calls the coastal regions of California and Oregon home, thriving in the unique Mediterranean climate conditions that characterize much of this area.

Garden Appeal and Design Uses

While Hooker’s silene may not be the showiest plant in your garden, it offers a quiet charm that works beautifully in specific garden settings. Its low-growing habit and delicate flowers make it an excellent choice for:

  • Rock gardens and alpine plantings
  • Native plant gardens
  • Drought-tolerant landscapes
  • Ground cover in appropriate conditions

The plant produces small, attractive flowers that typically range from white to soft pink, adding a gentle pop of color without overwhelming other plantings. Its modest stature makes it perfect for tucking into crevices or using as a subtle filler plant.

Growing Conditions and Care

As a California and Oregon native, Hooker’s silene is naturally adapted to the region’s dry summers and mild, wet winters. Here’s what this plant needs to thrive:

Sunlight: Provide full sun to partial shade, though it generally performs best with some morning sun.

Soil: Well-draining soil is absolutely essential. This plant cannot tolerate soggy conditions and will quickly decline in heavy, clay soils that retain moisture.

Water: Once established, Hooker’s silene requires minimal supplemental watering. In fact, overwatering is more likely to harm this plant than underwatering.

Hardiness: Based on its native range, this plant likely thrives in USDA hardiness zones 7-10, making it suitable for most coastal and inland areas of California and Oregon.

Planting and Establishment Tips

Getting Hooker’s silene established successfully requires attention to a few key details:

  • Plant in fall for best establishment, allowing the plant to take advantage of natural winter rains
  • Ensure excellent drainage by amending heavy soils with coarse sand or gravel
  • Space plants appropriately based on their mature size
  • Avoid fertilizing, as native plants typically perform better in lean soils
  • Water sparingly during the first growing season, then reduce watering significantly

Wildlife and Ecological Benefits

As a native plant, Hooker’s silene likely provides some benefits to local wildlife, though specific information about its wildlife value is limited. Native plants generally support local ecosystems better than non-native alternatives, potentially providing nectar for small pollinators and seeds for wildlife.

Is Hooker’s Silene Right for Your Garden?

This native plant is an excellent choice if you’re creating a low-maintenance, drought-tolerant garden in its native range. It’s particularly well-suited for gardeners who appreciate subtle beauty over flashy displays and want to support local plant communities.

However, Hooker’s silene might not be the best choice if you’re looking for a high-impact plant or need something for consistently moist conditions. Its specialized growing requirements also mean it may not adapt well to garden conditions outside its native range.

If you can provide the right conditions – excellent drainage, minimal water, and appropriate climate – Hooker’s silene can be a delightful addition to your native plant collection. Just remember to source your plants responsibly from reputable native plant nurseries to ensure you’re getting true species and supporting sustainable gardening 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