North America Native Plant

Klamath Mountain Catchfly

Botanical name: Silene salmonacea

USDA symbol: SISA12

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Klamath Mountain Catchfly: A Rare Gem for the Dedicated Native Plant Gardener If you’re the type of gardener who gets excited about rare botanical treasures, the Klamath Mountain catchfly (Silene salmonacea) might just capture your heart. This diminutive perennial herb represents one of California’s most exclusive native wildflowers – and ...

Rare plant alert!

Region: Conservation status by state

Status: S1S2: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Klamath Mountain Catchfly: A Rare Gem for the Dedicated Native Plant Gardener

If you’re the type of gardener who gets excited about rare botanical treasures, the Klamath Mountain catchfly (Silene salmonacea) might just capture your heart. This diminutive perennial herb represents one of California’s most exclusive native wildflowers – and we mean exclusive in the truest sense of the word.

What Makes This Catchfly So Special?

The Klamath Mountain catchfly is a native Californian perennial that belongs to the carnation family. As a forb – essentially a non-woody flowering plant – it produces delicate blooms that add subtle beauty to any native plant collection. But here’s the catch: this little beauty is incredibly rare, with a conservation status that should make any gardener pause and consider their responsibility as a plant steward.

Where Does It Call Home?

This endemic species is found exclusively in California, specifically in the Klamath Mountains region of the northern part of the state. Its limited range makes it a true California original – you won’t find this particular catchfly anywhere else in the world.

A Word of Caution: Rarity Matters

Before you start planning where to plant your Klamath Mountain catchfly, there’s something crucial you need to know. This species carries a Global Conservation Status of S1S2, which translates to very rare in plain English. This means the plant is at risk and exists in very limited populations in the wild.

What does this mean for you as a gardener? If you’re determined to grow this rare beauty, you must – and we cannot stress this enough – only source it from reputable native plant nurseries that propagate their stock responsibly. Never collect from wild populations, and always verify that any plants you purchase were legally and ethically obtained.

Garden Appeal and Design Role

Despite its rarity challenges, the Klamath Mountain catchfly can play a special role in the right garden setting. Its compact, herbaceous growth makes it perfect for:

  • Specialized rock gardens that mimic mountain environments
  • Native plant collections focused on California endemics
  • Educational gardens that showcase rare regional flora
  • Conservation-minded landscapes that support local biodiversity

The plant produces small, delicate flowers that may not create a bold visual impact from a distance, but they offer intimate beauty for those who appreciate subtle botanical details.

Growing Conditions and Care

Like many mountain natives, the Klamath Mountain catchfly likely prefers well-draining soils and can handle both partial shade and full sun conditions. Given its natural habitat in the Klamath Mountains, it’s probably best suited for USDA hardiness zones 7-9, though successful cultivation may require mimicking its native mountain environment.

Key growing tips include:

  • Provide excellent drainage to prevent root rot
  • Avoid overwatering, especially during dormant periods
  • Consider container growing for better environmental control
  • Protect from extreme heat if you’re in a warmer climate zone

Pollinator and Wildlife Benefits

While specific pollinator relationships for this rare species aren’t well-documented, most Silene species attract small native pollinators, including specialized moths and small native bees. By growing this plant responsibly, you’re potentially supporting the intricate web of relationships that keep our native ecosystems functioning.

Should You Grow It?

The Klamath Mountain catchfly presents a unique opportunity for dedicated native plant enthusiasts who understand the responsibility that comes with growing rare species. If you have experience with challenging native plants and access to ethically sourced material, this could be a meaningful addition to a specialized collection.

However, if you’re new to native gardening or looking for easier-care options, you might want to start with more common California natives and work your way up to rarities like this one. Consider it a graduation gift to yourself once you’ve mastered the art of growing other challenging mountain natives.

Remember: with rare plants comes great responsibility. Every garden that successfully grows and potentially propagates species like the Klamath Mountain catchfly becomes a small but important conservation outpost in our increasingly developed world.

Klamath Mountain Catchfly

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 salmonacea T.W. Nelson, J.P. Nelson & S.A. Erwin - Klamath Mountain catchfly

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