North America Native Plant

Dustseed

Botanical name: Acisanthera quadrata

USDA symbol: ACQU

Life cycle: annual

Habit: subshrub

Native status: Native to Puerto Rico  

Synonyms: Acisanthera acisanthera (L.) Britton, nom. inval. (ACAC4)   

Dustseed: A Hidden Gem for Your Wetland Garden If you’re looking to create a thriving wetland garden or restore a boggy area of your landscape, meet dustseed (Acisanthera quadrata) – a charming native plant that absolutely loves having its feet wet. This little-known gem is perfectly suited for those challenging ...

Dustseed: A Hidden Gem for Your Wetland Garden

If you’re looking to create a thriving wetland garden or restore a boggy area of your landscape, meet dustseed (Acisanthera quadrata) – a charming native plant that absolutely loves having its feet wet. This little-known gem is perfectly suited for those challenging wet spots in your yard that leave most gardeners scratching their heads.

What Is Dustseed?

Dustseed is a native forb that calls Puerto Rico home. As a herbaceous plant, it lacks the woody stems of shrubs and trees, instead producing soft, green growth that dies back seasonally. This adaptable little plant can behave as either an annual or perennial, depending on growing conditions – talk about flexible!

Don’t let its modest size fool you – dustseed plays an important ecological role in its native wetland habitats throughout Puerto Rico.

Why Your Wetland Garden Needs Dustseed

Here’s where dustseed really shines: it’s an obligate wetland plant, which means it almost always occurs in wetlands naturally. This makes it absolutely perfect for:

  • Rain gardens that collect runoff
  • Bog gardens and wetland restorations
  • Areas with poor drainage
  • Native plant landscapes focused on Caribbean flora

While we don’t have extensive data on its specific wildlife benefits, native wetland plants like dustseed typically provide valuable habitat and food sources for local wildlife, including insects and birds that depend on native plant communities.

Growing Dustseed Successfully

The key to growing dustseed is understanding its love affair with water. This plant thrives in consistently wet to saturated soils – conditions that would spell doom for many garden plants.

Ideal Growing Conditions

  • Moisture: Wet to saturated soils are essential
  • Light: Full sun to partial shade
  • Climate: Best suited for USDA zones 10-11 (tropical and subtropical regions)
  • Soil: Adaptable to various soil types as long as moisture needs are met

Planting and Care Tips

Dustseed is refreshingly low-maintenance once you get its water requirements right:

  • Plant in areas that stay consistently moist or wet
  • Ensure good access to water during dry periods
  • Minimal fertilization needed – wetland plants are typically adapted to nutrient-poor conditions
  • Allow natural seeding if you want it to spread in suitable areas

Is Dustseed Right for Your Garden?

Dustseed is an excellent choice if you:

  • Live in Puerto Rico or similar tropical climates
  • Have wet, boggy areas that need plants
  • Want to support native plant communities
  • Are creating a rain garden or wetland restoration

However, this plant might not be the best fit if you have well-drained soils or live in cooler climates, as it requires both warm temperatures and wet conditions to thrive.

A Plant Worth Discovering

While dustseed may not be the showiest plant in the garden, it fills an important niche for gardeners dealing with wet conditions in tropical climates. Its native status means it’s perfectly adapted to local conditions and supports the broader ecosystem. If you’re in Puerto Rico and have a wet spot that needs attention, dustseed might just be the perfect, low-maintenance solution you’ve been looking for.

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

Caribbean

OBL

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

Dustseed

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

Myrtales

Family

Melastomataceae Juss. - Melastome family

Genus

Acisanthera P. Br. - acisanthera

Species

Acisanthera quadrata Pers. - dustseed

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