North America Native Plant

Swartz’s Jamaican Broom

Botanical name: Chamaecrista glandulosa var. swartzii

USDA symbol: CHGLS

Life cycle: perennial

Habit: subshrub

Native status: Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Synonyms: Cassia glandulosa L. var. swartzii (Wikstr.) J.F. Macbr. (CAGLS)  âš˜  Chamaecrista swartzii (Wikstr.) Britton (CHSW)   

Swartz’s Jamaican Broom: A Caribbean Native Worth Knowing Meet Swartz’s Jamaican Broom (Chamaecrista glandulosa var. swartzii), a lesser-known but intriguing native shrub that calls the beautiful Caribbean islands home. While this plant might not be on every gardener’s radar, it represents an interesting piece of the Caribbean’s natural heritage that’s ...

Swartz’s Jamaican Broom: A Caribbean Native Worth Knowing

Meet Swartz’s Jamaican Broom (Chamaecrista glandulosa var. swartzii), a lesser-known but intriguing native shrub that calls the beautiful Caribbean islands home. While this plant might not be on every gardener’s radar, it represents an interesting piece of the Caribbean’s natural heritage that’s worth understanding.

What Makes This Plant Special?

Swartz’s Jamaican Broom is a perennial shrub that belongs to the legume family, sharing relatives with more familiar plants like beans and peas. As a true shrub, it develops multiple woody stems from the base and typically stays under 13-16 feet tall, making it a manageable size for most landscape applications.

This plant also goes by the scientific synonyms Cassia glandulosa var. swartzii and Chamaecrista swartzii, so don’t be confused if you see these names floating around in botanical literature.

Where Does It Come From?

This native beauty originates from Puerto Rico and the U.S. Virgin Islands, where it has evolved alongside the unique ecosystems of these tropical islands. Being a true native means it’s perfectly adapted to the local climate, soil conditions, and wildlife of its home region.

Should You Grow Swartz’s Jamaican Broom?

Here’s where things get a bit tricky – and honestly refreshing in our age of information overload. Swartz’s Jamaican Broom is something of a gardening mystery. While we know it’s a legitimate native species with a proper scientific classification, detailed growing information is surprisingly scarce in common horticultural resources.

If you’re gardening in Puerto Rico or the U.S. Virgin Islands, this plant could be an excellent choice for supporting local biodiversity and creating authentic native landscapes. As a native species, it likely offers benefits to local wildlife and requires fewer resources once established compared to non-native alternatives.

The Reality Check

For gardeners outside its native Caribbean range, Swartz’s Jamaican Broom probably isn’t the best choice simply due to climate incompatibility and the lack of readily available growing information. Instead, consider researching native shrubs in your own region that can provide similar benefits to local ecosystems.

What We Don’t Know (Yet)

Sometimes the most honest thing a gardening expert can say is I don’t know – and that applies to several aspects of this plant:

  • Specific growing conditions and care requirements
  • USDA hardiness zones
  • Detailed wildlife and pollinator benefits
  • Propagation methods
  • Wetland tolerance
  • Specific landscape design applications

The Bottom Line

Swartz’s Jamaican Broom represents the fascinating diversity of native plants that exist in specialized ecosystems around the world. While it may not be destined for mainstream gardening fame, it plays an important role in its native Caribbean habitat.

If you’re gardening in Puerto Rico or the U.S. Virgin Islands and are interested in this native shrub, your best bet would be to contact local native plant societies, botanical gardens, or university extension services who might have more region-specific growing information.

For everyone else, let this plant serve as a reminder of the incredible diversity of native species waiting to be discovered – and perhaps inspire you to learn more about the native treasures in your own backyard.

Swartz’s 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