North America Non-native Plant

Securidaca

Botanical name: Securidaca

USDA symbol: SECUR

Life cycle: perennial

Habit: vine

Native status: It's either native or not native in Puerto Rico âš˜ It's either native or not native in the U.S. Virgin Islands  

Growing Securidaca: A Tropical Shrub for Warm Climate Gardens If you’re looking to add some tropical flair to your warm-climate garden, you might have come across the intriguingly named securidaca. This perennial shrub brings a touch of the Caribbean to landscapes, though like many tropical plants, it comes with some ...

Growing Securidaca: A Tropical Shrub for Warm Climate Gardens

If you’re looking to add some tropical flair to your warm-climate garden, you might have come across the intriguingly named securidaca. This perennial shrub brings a touch of the Caribbean to landscapes, though like many tropical plants, it comes with some specific growing requirements that are worth understanding before you dig in.

What is Securidaca?

Securidaca is a genus of perennial shrubs that typically stay manageable in size, usually growing less than 13 to 16 feet tall. These multi-stemmed woody plants have that classic shrub look with several stems arising from near the ground, giving them a full, bushy appearance that works well in tropical landscape designs.

Where Does Securidaca Grow Naturally?

You’ll find securidaca growing in Puerto Rico and the U.S. Virgin Islands, where it thrives in the warm, humid tropical climate. However, its native status in these areas isn’t clearly defined, which means we’re not entirely sure if it’s truly indigenous to these islands or was introduced at some point in history.

Should You Plant Securidaca in Your Garden?

Here’s where things get a bit tricky. Since securidaca’s native status is undefined and we don’t have complete information about its invasive potential, it’s worth proceeding with caution. If you’re gardening in tropical zones (likely USDA zones 10-11), this shrub could work for you, but consider these factors first:

  • Your local climate needs to be consistently warm and humid
  • You’ll need space for a shrub that can reach up to 16 feet
  • Consider native alternatives that might provide similar aesthetic benefits with better ecological support

Growing Conditions and Care

If you decide to grow securidaca, you’ll want to mimic its natural tropical habitat as much as possible. This means:

  • Providing warm temperatures year-round
  • Ensuring good humidity levels
  • Offering well-draining soil that doesn’t stay soggy
  • Regular watering during dry periods

Like most tropical shrubs, securidaca will likely prefer a spot with some protection from harsh winds and consistent moisture without waterlogging.

The Bottom Line

While securidaca can make an attractive addition to tropical gardens, the limited information about its specific characteristics and undefined native status means you might want to explore well-documented native alternatives first. If you do choose to grow it, make sure you’re in the right climate zone and prepared to provide the warm, humid conditions it needs to thrive.

Remember, the best gardens often feature plants that are well-suited to both your local climate and ecosystem, so don’t hesitate to consult with local native plant societies or extension services for recommendations that might work even better for your specific location.

Securidaca

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

Polygalales

Family

Polygalaceae Hoffmanns. & Link - Milkwort family

Genus

Securidaca L. - securidaca

Species

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