North America Native Plant

Garden Puff

Botanical name: Neptunia prostrata

USDA symbol: NEPR2

Life cycle: perennial

Habit: subshrub

Native status: Native to Puerto Rico  

Synonyms: Neptunia oleracea Lour. (NEOL2)   

Garden Puff: A Charming Native Wetland Shrub for Tropical Gardens Meet the garden puff (Neptunia prostrata), a delightful native shrub that’s perfect for gardeners looking to create authentic wetland landscapes in tropical climates. This charming perennial brings both beauty and ecological value to water gardens, making it a fantastic choice ...

Garden Puff: A Charming Native Wetland Shrub for Tropical Gardens

Meet the garden puff (Neptunia prostrata), a delightful native shrub that’s perfect for gardeners looking to create authentic wetland landscapes in tropical climates. This charming perennial brings both beauty and ecological value to water gardens, making it a fantastic choice for specialized garden settings.

What Makes Garden Puff Special

Garden puff is a native treasure of Puerto Rico, where it naturally thrives in wetland environments. Also known by its botanical name Neptunia prostrata, this perennial shrub produces adorable pink to purple puff-ball flowers that look like tiny fireworks bursting from delicate, feathery foliage. The compound leaves have a fascinating feature – they fold up when touched, adding an interactive element that delights both children and adults.

As a multi-stemmed woody shrub, garden puff typically stays under 13-16 feet in height, making it a manageable size for most garden settings. Its spreading growth habit allows it to naturalize beautifully in appropriate conditions.

Where Garden Puff Grows

This native beauty is found naturally in Puerto Rico, where it plays an important role in local wetland ecosystems. Its distribution is quite limited, making it a special addition for gardeners within its natural range.

Perfect Growing Conditions

Garden puff is what botanists call an obligate wetland plant in most regions, meaning it almost always occurs in wetlands. Here’s what this water-loving shrub needs to thrive:

  • Moisture: Consistently wet to moist soil conditions
  • Light: Full sun to partial shade
  • Climate: USDA zones 10-11 only (tropical and subtropical)
  • Soil: Tolerates various soil types as long as they stay wet
  • Water tolerance: Can handle periodic flooding

Why Choose Garden Puff for Your Landscape

If you’re gardening in Puerto Rico or similar tropical climates, garden puff offers several compelling benefits:

  • Native authenticity: Support local ecosystems with indigenous plants
  • Pollinator support: The charming puff-ball flowers attract bees and butterflies
  • Water garden perfect: Ideal for pond edges, rain gardens, and bog gardens
  • Low maintenance: Once established in proper conditions, it’s relatively self-sufficient
  • Unique appeal: The touch-sensitive leaves provide interactive garden interest

Best Garden Settings

Garden puff shines in specialized garden environments:

  • Wetland restoration projects
  • Water gardens and pond margins
  • Rain gardens and bioswales
  • Tropical bog gardens
  • Naturalized wetland areas

Planting and Care Tips

Success with garden puff depends on meeting its water requirements:

  • Location: Choose consistently moist to wet areas
  • Planting: Best planted in spring in tropical climates
  • Watering: Maintain constant moisture; never let it dry out
  • Spreading: Allow room for natural spreading via creeping stems
  • Maintenance: Minimal pruning needed; remove dead stems as needed

Is Garden Puff Right for You?

Garden puff is perfect for gardeners in tropical climates (zones 10-11) who have consistently wet areas to fill. It’s particularly valuable for those creating authentic native landscapes or working on wetland restoration projects. However, it’s not suitable for typical garden beds or areas that experience dry periods.

If you’re outside its natural range or don’t have appropriate wetland conditions, consider other native wetland plants suited to your specific region and climate zone.

For the right gardener in the right location, garden puff offers a unique combination of beauty, ecological value, and interactive charm that makes it a treasured addition to specialized water gardens.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Caribbean

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Eastern Mountains and Piedmont

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Garden Puff

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

Neptunia Lour. - puff

Species

Neptunia prostrata (Lam.) Baill. - garden puff

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