North America Native Plant

Vivald’s Lobelia

Botanical name: Lobelia vivaldii

USDA symbol: LOVI4

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Synonyms: Lobelia salicina auct. non Lam. (LOSA4)   

Vivald’s Lobelia: A Mysterious Puerto Rican Native Meet Vivald’s lobelia (Lobelia vivaldii), one of Puerto Rico’s lesser-known native treasures. This perennial shrub belongs to the fascinating world of lobelias, but unlike its more famous cousins, this particular species keeps a pretty low profile in both the wild and in gardening ...

Vivald’s Lobelia: A Mysterious Puerto Rican Native

Meet Vivald’s lobelia (Lobelia vivaldii), one of Puerto Rico’s lesser-known native treasures. This perennial shrub belongs to the fascinating world of lobelias, but unlike its more famous cousins, this particular species keeps a pretty low profile in both the wild and in gardening circles.

What Is Vivald’s Lobelia?

Lobelia vivaldii is a perennial, multi-stemmed woody shrub that typically grows less than 13-16 feet in height. Like most shrubs, it develops several stems that arise from or near the ground, creating a bushy growth pattern. This plant is exclusively native to Puerto Rico, making it a true island endemic.

You might occasionally see this plant listed under the synonym Lobelia salicina, though this can cause some confusion with other species, so it’s best to stick with the accepted name Lobelia vivaldii.

Where Does It Grow?

This lobelia calls Puerto Rico home and only Puerto Rico. As an endemic species, it has evolved specifically to thrive in the unique conditions found on this Caribbean island.

Should You Grow Vivald’s Lobelia?

Here’s where things get a bit tricky. While supporting native plants is always admirable, Lobelia vivaldii presents some challenges for the average gardener:

  • Very limited cultivation information is available
  • The plant’s rarity status is unknown, which raises conservation concerns
  • Growing requirements and care instructions are not well documented
  • It may have very specific habitat needs that are difficult to replicate in cultivation

If You’re Determined to Try

If you’re a Puerto Rican gardener or someone with experience growing challenging native species, and you’re committed to supporting local biodiversity, here are some important considerations:

  • Source responsibly: Only obtain plants or seeds from reputable native plant societies or botanical institutions
  • Never collect from the wild: Given the unknown population status, wild collection could harm remaining populations
  • Start small: Try growing just one or two plants initially to learn their needs
  • Connect with experts: Reach out to local botanical gardens or native plant groups in Puerto Rico for guidance

The Mystery Factor

Part of what makes Vivald’s lobelia intriguing is how little we know about it in cultivation. While this can be frustrating for gardeners who like detailed growing guides, it also represents an opportunity for dedicated native plant enthusiasts to contribute to our understanding of this species.

Better-Known Alternatives

If you’re drawn to lobelias but want something with more established growing information, consider looking into other native Puerto Rican plants that are better documented and more readily available through native plant sources. Your local native plant society can suggest alternatives that will give you a better chance of success while still supporting island biodiversity.

The Bottom Line

Lobelia vivaldii represents the fascinating world of endemic species – plants that exist nowhere else on Earth. While it may not be the easiest addition to your garden, it serves as a reminder of the incredible plant diversity found in places like Puerto Rico. Whether or not you choose to grow it, supporting conservation efforts and native plant research helps ensure that species like Vivald’s lobelia continue to thrive in their natural habitats.

Sometimes the most valuable plants are the ones that remain a little mysterious, challenging us to learn more about the natural world around us.

Vivald’s Lobelia

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Lobelia L. - lobelia

Species

Lobelia vivaldii Lammers & Proctor - Vivald's lobelia

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