North America Non-native Plant

Neonotonia

Botanical name: Neonotonia

USDA symbol: NEONO

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in Hawaii  

Neonotonia: An Uncommon Perennial with Limited Garden Information If you’ve stumbled across the name neonotonia in your plant research, you might be wondering what exactly this mysterious perennial is all about. While not a household name in gardening circles, Neonotonia represents an interesting case study in how some plants remain ...

Neonotonia: An Uncommon Perennial with Limited Garden Information

If you’ve stumbled across the name neonotonia in your plant research, you might be wondering what exactly this mysterious perennial is all about. While not a household name in gardening circles, Neonotonia represents an interesting case study in how some plants remain botanical curiosities rather than garden staples.

What Is Neonotonia?

Neonotonia is a perennial forb – essentially a non-woody herbaceous plant that comes back year after year. As a member of the legume family (Fabaceae), it shares characteristics with more familiar plants like beans and peas. The plant lacks significant woody tissue above ground, with its perennating buds safely tucked at or below the soil surface to survive tough conditions.

Where Does Neonotonia Grow?

Currently, Neonotonia is documented as growing in Hawaii, where it has established itself as a non-native species. The plant has managed to reproduce spontaneously in the wild without human intervention and appears to persist in Hawaiian ecosystems.

Should You Grow Neonotonia in Your Garden?

Here’s where things get a bit tricky. While Neonotonia isn’t flagged as invasive or noxious, there’s remarkably little information available about its cultivation requirements, aesthetic appeal, or garden performance. This lack of horticultural data suggests it’s not commonly grown or studied as a garden plant.

For most gardeners, especially those interested in supporting local ecosystems, this presents a compelling case for choosing better-documented alternatives. Native plants to your specific region will always be the safer bet for several reasons:

  • Proven track record of supporting local wildlife and pollinators
  • Well-documented growing requirements and care instructions
  • Adapted to local climate conditions
  • Lower risk of unexpected invasive behavior

The Mystery of Growing Conditions

Unfortunately, specific information about Neonotonia’s preferred growing conditions, hardiness zones, height, spread, and care requirements simply isn’t available in standard horticultural literature. This makes it challenging to provide reliable growing advice or predict how it might perform in different garden settings.

A Better Path Forward

Rather than taking a gamble on a plant with limited information, consider exploring the wealth of native perennial forbs available for your region. These plants offer:

  • Detailed cultivation guides
  • Known benefits for local wildlife
  • Predictable garden performance
  • Support for regional biodiversity

Your local native plant society, extension office, or reputable native plant nursery can help you discover fascinating perennial forbs that are well-suited to your specific growing conditions and garden goals.

The Bottom Line

While Neonotonia might sound intriguing, the lack of available growing information makes it a poor choice for most gardeners. Instead of gambling on an unknown quantity, invest your time and garden space in native plants that are proven performers with well-documented benefits for both gardeners and local ecosystems.

Sometimes the most responsible gardening choice is simply saying I’ll pass and choosing plants that come with a solid foundation of horticultural knowledge and ecological benefits.

Neonotonia

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Neonotonia Lackey - neonotonia

Species

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