North America Native Plant

Caribbean Holly

Botanical name: Ilex macfadyenii

USDA symbol: ILMA

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Synonyms: Prinos macfadyenii Walp. (PRMA10)   

Caribbean Holly: A Native Treasure for Tropical Gardens If you’re gardening in Puerto Rico or other tropical zones and looking for a native shrub that’s both beautiful and ecologically valuable, let me introduce you to Caribbean holly (Ilex macfadyenii). This charming evergreen might just become your new favorite addition to ...

Caribbean Holly: A Native Treasure for Tropical Gardens

If you’re gardening in Puerto Rico or other tropical zones and looking for a native shrub that’s both beautiful and ecologically valuable, let me introduce you to Caribbean holly (Ilex macfadyenii). This charming evergreen might just become your new favorite addition to the landscape!

What is Caribbean Holly?

Caribbean holly is a native Puerto Rican shrub that belongs to the holly family. Don’t let the scientific name Ilex macfadyenii intimidate you – this perennial beauty is surprisingly easy-going. As a multi-stemmed woody plant, it typically grows to a manageable height of 13-16 feet, though it often stays much smaller in garden settings.

This lovely shrub sports the classic holly look with glossy, dark green leaves and produces small white flowers that eventually give way to bright red berries – a delightful sight that adds year-round interest to any garden.

Where Does Caribbean Holly Grow?

Caribbean holly is endemic to Puerto Rico, meaning you won’t find it growing wild anywhere else in the world. This makes it extra special for Puerto Rican gardeners who want to showcase their island’s unique natural heritage.

Why Plant Caribbean Holly?

There are several compelling reasons to consider adding this native gem to your landscape:

  • Native plant benefits: As a true Puerto Rican native, it’s perfectly adapted to local conditions and supports local ecosystems
  • Pollinator friendly: Those small white flowers are magnets for bees and other beneficial pollinators
  • Wildlife value: The red berries provide food for local birds
  • Versatile growing conditions: It’s classified as facultative wetland, meaning it’s happy in both moist and drier conditions
  • Low maintenance: Once established, it requires minimal care

Perfect Garden Roles

Caribbean holly is wonderfully versatile in the landscape. Use it as:

  • An understory plant in naturalized areas
  • Foundation plantings around homes
  • Part of a native plant garden
  • In rain gardens or areas with variable moisture
  • As a backdrop for smaller flowering plants

Growing Conditions and Care

One of the best things about Caribbean holly is its adaptability. Here’s what it needs to thrive:

Climate: USDA hardiness zones 10-11 only – this is definitely a tropical plant that won’t survive frost

Light: Partial shade to full sun, though it appreciates some protection from intense afternoon sun

Soil: Moist, well-draining soil is ideal, but it can handle both wetter and drier conditions thanks to its facultative wetland status

Water: Regular watering until established, then it becomes quite drought-tolerant

Planting and Care Tips

Getting your Caribbean holly off to a good start is straightforward:

  • Plant in spring when temperatures are consistently warm
  • Dig a hole twice as wide as the root ball but no deeper
  • Water regularly for the first growing season
  • Apply a layer of organic mulch around the base
  • Minimal pruning needed – just remove dead or damaged branches
  • No special fertilizers required if planted in good soil

A Word About Sourcing

Since Caribbean holly is native only to Puerto Rico and we don’t have complete information about its conservation status, it’s important to source plants responsibly. Look for nurseries that specialize in native plants and can verify their plants were ethically propagated rather than collected from the wild.

The Bottom Line

Caribbean holly offers tropical gardeners a wonderful opportunity to grow something truly special – a plant that belongs nowhere else on Earth except their own island. With its attractive evergreen foliage, pollinator-friendly flowers, and bird-feeding berries, it’s a win-win for both gardeners and local wildlife. Plus, its easygoing nature means you can enjoy all these benefits without a lot of fuss.

If you’re gardening in zones 10-11 and want to add some authentic Caribbean flair to your landscape while supporting local ecosystems, Caribbean holly deserves a spot on your must-plant list!

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Caribbean

FACW

Facultative Wetland - Plants with this status usually occurs in wetlands but may occur in non-wetlands

Caribbean Holly

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 macfadyenii (Walp.) Rehder - Caribbean holly

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