North America Native Plant

Maconcona

Botanical name: Ilex guianensis

USDA symbol: ILGU

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Maconcona: A Mysterious Puerto Rican Holly Worth Knowing If you’re fascinated by rare and lesser-known native plants, meet maconcona (Ilex guianensis) – a Puerto Rican holly that’s as intriguing as it is elusive. This perennial shrub represents one of those wonderful botanical mysteries that keeps plant enthusiasts on their toes, ...

Maconcona: A Mysterious Puerto Rican Holly Worth Knowing

If you’re fascinated by rare and lesser-known native plants, meet maconcona (Ilex guianensis) – a Puerto Rican holly that’s as intriguing as it is elusive. This perennial shrub represents one of those wonderful botanical mysteries that keeps plant enthusiasts on their toes, offering a glimpse into the rich but understudied flora of Puerto Rico.

What is Maconcona?

Maconcona belongs to the holly family and is a true Puerto Rican native. As a perennial shrub, it typically develops multiple stems arising from or near the ground, usually staying under 13-16 feet tall. Like other members of the Ilex genus, it’s a woody plant built for longevity, potentially gracing landscapes for many years when conditions are right.

Where Does It Grow Naturally?

This holly calls Puerto Rico home and appears to be found only in this Caribbean territory. Its limited geographic distribution makes it a special representative of Puerto Rico’s unique island ecosystem.

The Challenge of Growing Maconcona

Here’s where things get interesting – and a bit challenging. Maconcona falls into that category of native plants that haven’t been extensively studied or cultivated in typical gardening contexts. While this adds to its mystique, it also means that specific growing requirements, care instructions, and garden performance data are largely unknown.

What We Can Reasonably Assume

Based on its Puerto Rican origins, maconcona likely thrives in:

  • Tropical to subtropical conditions (USDA zones 10-11)
  • Year-round warmth with no frost tolerance
  • Higher humidity levels typical of Caribbean climates
  • Well-draining soils, as most hollies prefer

Should You Try Growing It?

If you’re gardening in Puerto Rico or similar tropical climates, maconcona could be an excellent choice for supporting local biodiversity and preserving native plant heritage. However, the lack of cultivation information means you’d be entering somewhat uncharted territory.

For gardeners in other locations, this plant would likely require greenhouse conditions or indoor growing arrangements, making it more of a collector’s challenge than a typical landscape plant.

The Bigger Picture

Plants like maconcona remind us how much we still don’t know about our native flora. Many island endemic species remain understudied, with their horticultural potential and ecological roles largely unexplored. By showing interest in these lesser-known natives, gardeners can help drive conservation efforts and botanical research.

Finding Maconcona

Don’t expect to find maconcona at your local nursery. If you’re determined to grow this intriguing holly, you’ll likely need to connect with botanical gardens, native plant societies in Puerto Rico, or specialized collectors. Always ensure any plant material is ethically and legally sourced.

While maconcona may not be the easiest native plant to add to your garden, it represents something valuable: the incredible diversity of our native flora and the importance of preserving these unique species for future generations to discover and enjoy.

Maconcona

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

Celastrales

Family

Aquifoliaceae Bercht. & J. Presl - Holly family

Genus

Ilex L. - holly

Species

Ilex guianensis (Aubl.) Kuntze - maconcona

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