North America Non-native Plant

Silene Secundiflora

Botanical name: Silene secundiflora

USDA symbol: SISE9

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Silene glauca Lag., nom. illeg. (SIGL9)   

Silene secundiflora: The Mysterious Member of the Catchfly Family If you’ve stumbled across the name Silene secundiflora in your plant research, you might be scratching your head wondering what exactly this species is all about. You’re not alone! This particular member of the Silene genus (commonly known as catchflies or ...

Silene secundiflora: The Mysterious Member of the Catchfly Family

If you’ve stumbled across the name Silene secundiflora in your plant research, you might be scratching your head wondering what exactly this species is all about. You’re not alone! This particular member of the Silene genus (commonly known as catchflies or campions) is something of a botanical enigma, with very limited information available in current horticultural and botanical resources.

What We Know (And Don’t Know)

Silene secundiflora belongs to the diverse Silene genus, which includes many beloved garden plants known for their delicate, often fragrant flowers. However, unlike its more famous cousins, this particular species seems to have slipped through the cracks of modern botanical documentation.

The species has a synonym – Silene glauca Lag. – but even under this alternate name, reliable cultivation and distribution information remains elusive. This lack of readily available information could suggest several possibilities: the species might be extremely rare, regionally restricted, or possibly even represent a taxonomic name that’s fallen out of current use.

Why This Matters for Gardeners

As a gardener interested in native plants, encountering a species with limited documentation presents both challenges and opportunities:

  • Without clear native range information, it’s impossible to determine if this plant is appropriate for your local ecosystem
  • Lack of cultivation guidance makes successful growing nearly impossible
  • Unknown invasive potential means planting could pose ecological risks
  • Absence of wildlife benefit data limits conservation value assessment

Better Alternatives: Well-Documented Silene Species

Rather than pursuing this mysterious species, consider these well-documented and widely available Silene alternatives:

  • Wild Pink (Silene caroliniana): A native North American species perfect for rock gardens
  • Fire Pink (Silene virginica): Stunning red flowers that attract hummingbirds
  • Bladder Campion (Silene vulgaris): Hardy perennial with white balloon-like flowers
  • Moss Campion (Silene acaulis): Alpine cushion plant ideal for rock gardens

The Takeaway

While Silene secundiflora might sound intriguing, the lack of available information makes it an impractical choice for most gardeners. Your time and energy are better invested in well-documented native species that offer known benefits to both your garden and local wildlife.

If you’re specifically interested in this species for research purposes, consider reaching out to botanical institutions or herbaria that might have historical records or specimens. Otherwise, stick with the many beautiful and well-understood members of the Silene family that will reward you with reliable growth and ecological benefits.

Remember: successful native gardening relies on choosing plants with clear provenance and known growing requirements. When in doubt, opt for species with robust documentation and proven track records in cultivation.

Silene Secundiflora

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 secundiflora Otth

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