North America Native Plant

Limnophila

Botanical name: Limnophila fragrans

USDA symbol: LIFR3

Native status: Native to Pacific Basin excluding Hawaii  

Limnophila: A Rare Pacific Island Native Worth Knowing If you’re passionate about native plants and have a connection to the Pacific Islands, you might be curious about limnophila (Limnophila fragrans). This lesser-known native species represents the unique flora of the Pacific Basin, though it’s certainly not your typical garden center ...

Limnophila: A Rare Pacific Island Native Worth Knowing

If you’re passionate about native plants and have a connection to the Pacific Islands, you might be curious about limnophila (Limnophila fragrans). This lesser-known native species represents the unique flora of the Pacific Basin, though it’s certainly not your typical garden center find.

Where Does Limnophila Call Home?

Limnophila fragrans is native to the Pacific Basin, excluding Hawaii, with documented populations in Guam and Palau. This limited geographic distribution makes it a true regional specialty, evolved to thrive in the specific conditions of these Pacific island ecosystems.

The Challenge of Growing Limnophila

Here’s where things get interesting – and a bit challenging. Unlike many popular native plants that have been extensively studied and cultivated, detailed growing information for Limnophila fragrans is remarkably scarce. This presents both an opportunity and a hurdle for dedicated native plant enthusiasts.

What We Know (And Don’t Know)

The reality is that comprehensive horticultural information about this species is limited. We know it’s part of the Limnophila genus, which typically includes plants adapted to aquatic or semi-aquatic environments, but specific details about:

  • Exact growing conditions and care requirements
  • USDA hardiness zones
  • Mature size and growth habits
  • Pollinator and wildlife benefits
  • Propagation methods

remain largely undocumented in mainstream gardening resources.

Should You Try Growing It?

If you’re located in Guam, Palau, or similar Pacific island environments, and you’re committed to preserving local native flora, this plant might be worth investigating further. However, given the lack of cultivation information, it would be a true gardening adventure.

For most mainland gardeners, you’ll likely find better success with more widely available native plants that offer similar ecological benefits and are better suited to your local growing conditions.

Alternative Native Options

If you’re drawn to aquatic or semi-aquatic native plants, consider exploring well-documented options native to your specific region. Many areas have their own unique wetland and water garden natives that are better understood and more readily available through responsible sources.

The Bottom Line

Limnophila fragrans represents the fascinating diversity of Pacific island flora, but it’s not a practical choice for most home gardeners. If you’re specifically working on Pacific island restoration or have access to this plant through legitimate conservation efforts, it could be a meaningful addition to appropriate native landscapes. Otherwise, focus your energy on the many wonderful native plants that are well-suited to your local environment and come with plenty of growing guidance.

Remember, the best native plant for your garden is one that’s truly native to your area and one you can grow successfully – benefiting both your landscape and local ecosystems.

Limnophila

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Limnophila R. Br. - marshweed

Species

Limnophila fragrans (G. Forst.) Seem. - limnophila

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