Native Plants

Cuban Nutrush

Scleria cubensis

USDA symbol: SCCU2

perennial grass

Puerto Rico: native

If you’re looking for a unique native sedge to add authentic Caribbean flair to your wetland garden, Cuban nutrush might just be the plant you’ve been searching for. This lesser-known perennial sedge brings a touch of Puerto Rican wilderness to specialized garden settings, though it’s definitely not your everyday garden ...

Cuban Nutrush: A Wetland Wonder from the Caribbean

If you’re looking for a unique native sedge to add authentic Caribbean flair to your wetland garden, Cuban nutrush might just be the plant you’ve been searching for. This lesser-known perennial sedge brings a touch of Puerto Rican wilderness to specialized garden settings, though it’s definitely not your everyday garden center find.

Getting to Know Cuban Nutrush

Cuban nutrush (Scleria cubensis) is a perennial sedge that calls Puerto Rico home. Like other members of the sedge family, this grass-like plant has that distinctive sedgy look that wetland enthusiasts absolutely love. You might occasionally see it listed under its botanical synonym, Scleria mucronata, but don’t let the name confusion fool you – it’s the same plant.

This native beauty is found exclusively in Puerto Rico, making it a true island endemic that adds authentic local character to Caribbean landscapes.

  • Species observed
  • No observations

What Makes Cuban Nutrush Special?

Cuban nutrush has earned its facultative wetland status, which is a fancy way of saying it’s perfectly happy with wet feet most of the time but can tolerate some drier conditions. This flexibility makes it particularly valuable for:

  • Rain gardens and bioswales
  • Pond margins and water feature edges
  • Natural wetland restoration projects
  • Native plant collections focusing on Caribbean species

Growing Cuban Nutrush Successfully

Here’s where things get a bit challenging – Cuban nutrush isn’t exactly what you’d call widely available in the nursery trade. This sedge thrives in Puerto Rico’s tropical climate, which means it’s best suited for USDA hardiness zones 10-11.

Ideal Growing Conditions

Based on its wetland status and native habitat, Cuban nutrush likely prefers:

  • Consistently moist to wet soil conditions
  • Full to partial sun exposure
  • Warm, tropical temperatures year-round
  • High humidity levels

The Reality Check: Is This Plant Right for You?

Cuban nutrush is definitely a plant for the specialized gardener. If you’re in Puerto Rico or a similar tropical climate and working on wetland restoration or native plant conservation, this sedge could be an excellent addition. However, for most mainland gardeners, it’s probably not the most practical choice.

The biggest challenges with Cuban nutrush are:

  • Extremely limited availability in the nursery trade
  • Very specific climate requirements
  • Limited growing information available
  • Restricted to tropical zones only

Wildlife and Ecosystem Benefits

While specific wildlife benefits for Cuban nutrush aren’t well documented, sedges in general are valuable ecosystem plants. They typically provide habitat for small wildlife, help with erosion control in wet areas, and contribute to the overall biodiversity of wetland ecosystems.

The Bottom Line

Cuban nutrush is more of a conservation plant than a typical garden specimen. If you’re passionate about Puerto Rican native plants and have the right growing conditions, it could be a meaningful addition to a specialized collection. Just be prepared for a challenge in sourcing this uncommon sedge.

For most gardeners looking for wetland sedges, consider exploring other native Scleria species or sedges native to your specific region – you’ll likely find more readily available options that provide similar ecological benefits with much better growing information and plant availability.

Scleria cubensis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Scleria cubensis is also known as:

Scleria mucronata | USDA symbol: SCMU14

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

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 care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants 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. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Caribbean (PR, VI)

Facultative Wetland
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Cyperaceae Juss. - Sedge family
Genus: Scleria P.J. Bergius - nutrush

Species: Scleria cubensis Boeckeler - Cuban nutrush

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