North America Native Plant

Jamaican Broom

Botanical name: Chamaecrista glandulosa var. glandulosa

USDA symbol: CHGLG3

Life cycle: perennial

Habit: subshrub

Native status: Native to Puerto Rico  

Synonyms: Cassia glandulosa L. (CAGL16)   

Jamaican Broom: A Puerto Rican Native Shrub for Tropical Gardens If you’re looking to add a touch of Caribbean charm to your tropical garden, Jamaican broom (Chamaecrista glandulosa var. glandulosa) might just be the native shrub you’ve been searching for. This lesser-known member of the legume family brings both beauty ...

Jamaican Broom: A Puerto Rican Native Shrub for Tropical Gardens

If you’re looking to add a touch of Caribbean charm to your tropical garden, Jamaican broom (Chamaecrista glandulosa var. glandulosa) might just be the native shrub you’ve been searching for. This lesser-known member of the legume family brings both beauty and ecological value to landscapes in its native range.

What Is Jamaican Broom?

Jamaican broom is a perennial shrub that’s native to Puerto Rico. Like most shrubs, it’s a woody, multi-stemmed plant that typically stays under 13-16 feet tall, making it a manageable addition to most garden spaces. As part of the legume family (you might know it by its scientific name Chamaecrista glandulosa var. glandulosa, or its botanical synonym Cassia glandulosa), this plant shares characteristics with other beloved garden legumes.

Where Does It Grow Naturally?

This native beauty calls Puerto Rico home, where it has adapted to the island’s tropical climate and growing conditions. As a true Puerto Rican native, it’s perfectly suited to the local ecosystem and supports the island’s natural biodiversity.

Why Consider Jamaican Broom for Your Garden?

Here are some compelling reasons to give this native shrub a spot in your landscape:

  • Native plant benefits: Supporting local ecosystems by choosing native species
  • Manageable size: As a shrub, it won’t overwhelm smaller garden spaces
  • Perennial growth: Once established, it’ll return year after year
  • Legume family advantages: May help improve soil nitrogen levels
  • Low maintenance potential: Native plants typically require less water and care once established

Garden Design and Landscape Role

Jamaican broom works well as a mid-sized shrub in tropical and subtropical landscapes. Its natural growing habit makes it suitable for:

  • Mixed native plant gardens
  • Wildlife-friendly landscapes
  • Low-maintenance tropical gardens
  • Natural or informal garden designs

Growing Conditions and Care

While specific growing information for this variety is limited, as a Puerto Rican native, Jamaican broom likely thrives in:

  • Climate zones: USDA zones 10-11 (tropical to subtropical)
  • Light requirements: Full sun to partial shade (typical for tropical shrubs)
  • Soil preferences: Well-draining soils (most tropical plants prefer good drainage)
  • Water needs: Moderate water once established

A Note About Availability

Here’s the quirky part about Jamaican broom – while it sounds like a fantastic addition to any tropical garden, detailed growing information and plant availability can be quite limited. This often happens with native plants that haven’t made it into mainstream horticulture yet. If you’re interested in growing this particular variety, you might need to do some detective work to find seeds or plants from specialized native plant sources or botanical gardens.

Supporting Puerto Rico’s Native Flora

By choosing native plants like Jamaican broom, gardeners in Puerto Rico can help preserve the island’s natural heritage while creating beautiful, sustainable landscapes. Native plants have evolved alongside local wildlife and are often the best choice for supporting pollinators and other beneficial creatures.

The Bottom Line

Jamaican broom represents the wonderful world of native Caribbean plants that deserve more attention in home landscapes. While you might need to search a bit harder to find this particular shrub, the effort could be worth it for gardeners committed to native plant landscaping in tropical zones. As with any native plant, growing Jamaican broom means you’re contributing to local biodiversity while enjoying a piece of Puerto Rico’s natural beauty right in your own backyard.

Jamaican Broom

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

Chamaecrista (L.) Moench - sensitive pea

Species

Chamaecrista glandulosa (L.) Greene - Jamaican broom

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