North America Non-native Plant

Flemingia

Botanical name: Flemingia

USDA symbol: FLEMI

Life cycle: perennial

Habit: subshrub

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii âš˜ Non-native, reproduces and persists in the wild in Puerto Rico  

Flemingia: A Tropical Shrub for Warm Climate Gardens If you’re gardening in a warm, tropical climate and looking for a sturdy shrub that can handle various conditions, you might have come across flemingia. This perennial woody plant has made its way into gardens across Hawaii, Puerto Rico, and parts of ...

Flemingia: A Tropical Shrub for Warm Climate Gardens

If you’re gardening in a warm, tropical climate and looking for a sturdy shrub that can handle various conditions, you might have come across flemingia. This perennial woody plant has made its way into gardens across Hawaii, Puerto Rico, and parts of the Pacific Basin, though it’s worth understanding what you’re getting into before adding it to your landscape.

What Exactly Is Flemingia?

Flemingia is a multi-stemmed shrub that typically grows to about 13-16 feet tall, though it can sometimes stretch taller or stay more compact depending on growing conditions. As a member of the legume family, it produces the characteristic compound leaves and small clustered flowers that many gardeners find appealing.

This plant is what botanists call a perennial woody plant, which simply means it lives for many years and develops sturdy, bark-covered stems rather than the soft, green stems you’d see on annual flowers or vegetables.

Where Does Flemingia Grow?

Originally from tropical and subtropical regions of Asia and Africa, flemingia has established itself in several warm-climate locations including Hawaii, Palau, and Puerto Rico. In these areas, it reproduces on its own without human intervention and has become a persistent part of the local plant community.

Should You Plant Flemingia in Your Garden?

Here’s where things get a bit nuanced. Flemingia is non-native to the regions where it’s commonly found today, but it’s not currently listed as invasive or noxious. This puts it in a gray area for gardeners who care about ecological impact.

Reasons You Might Consider Flemingia:

  • Hardy and adaptable once established
  • Attractive foliage and flowers
  • Can serve as a hedge or specimen plant
  • Flowers attract pollinators like bees
  • Tolerates various soil conditions

Reasons You Might Want Alternatives:

  • Non-native status means it doesn’t support local ecosystems as well as native plants
  • May compete with native vegetation in natural areas
  • Limited wildlife benefits compared to indigenous species

Native Alternatives to Consider

If you’re leaning toward supporting local ecosystems, consider researching native shrubs in your area that offer similar aesthetic appeal and growing characteristics. Native plants typically provide better support for local wildlife and are naturally adapted to your climate conditions.

Growing Flemingia Successfully

If you decide flemingia fits your garden plans, here’s what you need to know about keeping it happy:

Climate Requirements

Flemingia thrives in USDA hardiness zones 9-11, which means it needs consistently warm temperatures and can’t handle frost. If you’re in a cooler climate, this isn’t the plant for you.

Growing Conditions

  • Light: Full sun to partial shade
  • Soil: Well-draining soil; adaptable to various soil types
  • Water: Regular watering, especially during establishment
  • Space: Allow room for 13-16 feet of height and appropriate width

Planting and Care Tips

  • Plant after the last frost date in your area
  • Water regularly during the first growing season to establish roots
  • Prune as needed to maintain desired shape and size
  • Protect from cold temperatures and frost
  • Monitor for any signs of aggressive spreading

The Bottom Line

Flemingia can be a successful addition to tropical and subtropical gardens, offering reliable growth and attractive features. However, as with any non-native plant, it’s worth weighing the benefits against the potential ecological impact. Consider your local ecosystem, explore native alternatives, and make the choice that aligns best with your gardening goals and environmental values.

Whatever you decide, remember that successful gardening is about understanding your plants’ needs and providing the right conditions for them to thrive – whether they’re native species or well-behaved introduced ones.

Flemingia

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

Flemingia Roxb. ex W.T. Aiton - flemingia

Species

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