North America Non-native Plant

Italian Catchfly

Botanical name: Silene italica nemoralis

USDA symbol: SIITN

Life cycle: biennial

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Italian Catchfly: A Mysterious Non-Native Biennial Worth Understanding If you’ve stumbled across the name Italian catchfly (Silene italica nemoralis) in your gardening research, you might be wondering what exactly this plant is all about. Well, you’re not alone in your curiosity – this particular subspecies is something of an enigma ...

Italian Catchfly: A Mysterious Non-Native Biennial Worth Understanding

If you’ve stumbled across the name Italian catchfly (Silene italica nemoralis) in your gardening research, you might be wondering what exactly this plant is all about. Well, you’re not alone in your curiosity – this particular subspecies is something of an enigma in the gardening world, with limited information available about its specific characteristics and behavior.

What Is Italian Catchfly?

Italian catchfly is a biennial forb, meaning it’s a non-woody plant that completes its life cycle over two years. During its first year, it typically focuses on establishing roots and foliage, then flowers and sets seed in its second year before dying. As a forb, it lacks the woody stems of shrubs and trees, instead producing herbaceous growth that emerges from buds at or near ground level.

Native Status and Distribution

Here’s where things get interesting – Italian catchfly is actually a non-native species that has made its way to North America and established itself in the wild. Currently, it’s been documented in New York state, where it reproduces on its own without human intervention and appears to persist in the landscape.

Should You Plant Italian Catchfly?

This is where we need to be honest about the limitations of our knowledge. With unknown invasive status and very little documented information about this particular subspecies, it’s difficult to make a strong recommendation either way. If you’re considering adding it to your garden, here are some things to keep in mind:

  • As a non-native species, it won’t provide the same ecological benefits as native plants
  • Its behavior in different climates and soil conditions isn’t well documented
  • We don’t know its specific wildlife or pollinator benefits

Native Alternatives to Consider

Instead of Italian catchfly, you might want to explore native catchfly species that offer similar appeal but with known benefits for local ecosystems. Consider these wonderful native alternatives:

  • Wild pink (Silene caroliniana) – a lovely native with bright pink flowers
  • Fire pink (Silene virginica) – stunning red blooms that attract hummingbirds
  • Starry campion (Silene stellata) – delicate white flowers with fringed petals

The Bottom Line

Italian catchfly remains something of a garden mystery. While it’s established itself in parts of New York, we simply don’t have enough information about its growing requirements, potential benefits, or long-term behavior to give it a strong endorsement. If you’re passionate about supporting local ecosystems through your garden choices, focusing on well-documented native species will give you the most bang for your buck – and the most reliable growing information to ensure success.

Sometimes in gardening, the most honest answer is we just don’t know enough yet. Italian catchfly falls into that category, making it more of a botanical curiosity than a reliable garden recommendation.

Italian 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 italica (L.) Pers. - Italian catchfly

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