North America Native Plant

Mountain Guava

Botanical name: Psidium amplexicaule

USDA symbol: PSAM

Life cycle: perennial

Habit: shrub

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

Mountain Guava: A Caribbean Native Worth Discovering If you’re looking to add authentic Caribbean flair to your tropical garden, mountain guava (Psidium amplexicaule) might just be the hidden gem you’ve been searching for. This lesser-known member of the guava family brings native authenticity to gardens in Puerto Rico and the ...

Mountain Guava: A Caribbean Native Worth Discovering

If you’re looking to add authentic Caribbean flair to your tropical garden, mountain guava (Psidium amplexicaule) might just be the hidden gem you’ve been searching for. This lesser-known member of the guava family brings native authenticity to gardens in Puerto Rico and the U.S. Virgin Islands, though it remains something of a mystery even to many native plant enthusiasts.

What is Mountain Guava?

Mountain guava is a perennial shrub that’s perfectly at home in the Caribbean landscape. As a true native of Puerto Rico and the U.S. Virgin Islands, this woody plant typically grows as a multi-stemmed shrub, usually staying under 13-16 feet in height. Like many shrubs, it develops several stems from or near ground level, creating a naturally bushy appearance that can add structure and year-round interest to your native garden.

Where Does Mountain Guava Grow?

This Caribbean native has a fairly limited natural range, calling Puerto Rico and the U.S. Virgin Islands home. Its distribution reflects its adaptation to the unique climate and growing conditions of these tropical islands.

Why Consider Mountain Guava for Your Garden?

Choosing native plants like mountain guava offers several compelling advantages:

  • Authentic regional character: Nothing says Caribbean garden like plants that actually belong there
  • Low maintenance potential: Native plants are naturally adapted to local conditions
  • Ecological benefits: Supporting native species helps maintain local ecosystems
  • Unique appeal: This lesser-known native can set your garden apart

Growing Conditions and Care

Here’s where things get interesting – and a bit challenging. Mountain guava falls into that category of native plants that haven’t been extensively studied for cultivation. Based on its native range, it’s likely best suited for USDA hardiness zones 10-11, thriving in tropical conditions year-round.

Since specific growing requirements aren’t well-documented, your best bet is to:

  • Mimic its natural habitat conditions
  • Provide well-draining soil (most Caribbean natives prefer this)
  • Ensure adequate moisture without waterlogging
  • Choose a location with appropriate light exposure

The Challenge and the Opportunity

Let’s be honest – mountain guava isn’t your typical garden center find. The limited information available about cultivation requirements and its apparent rarity in the horticultural trade present both challenges and opportunities. If you’re an adventurous gardener who loves working with lesser-known natives, this could be an exciting project.

However, if you’re new to native gardening or want something with proven cultivation guidelines, you might want to start with better-known Caribbean natives and work your way up to more mysterious species like mountain guava.

Finding Mountain Guava

Your journey to grow mountain guava will likely require some detective work. Consider reaching out to:

  • Local native plant societies in Puerto Rico or the U.S. Virgin Islands
  • Regional botanical gardens and arboreta
  • Native plant specialists who focus on Caribbean flora
  • University extension programs in the region

The Bottom Line

Mountain guava represents both the allure and the challenge of working with lesser-known native plants. While it offers the authentic appeal of a true Caribbean native, the limited cultivation information means you’ll be somewhat pioneering in your growing efforts.

If you’re up for the adventure and have access to local expertise, mountain guava could become a unique centerpiece in your native tropical garden. Just remember that patience and flexibility will be your best tools as you learn to work with this intriguing but understudied native species.

For gardeners seeking well-documented Caribbean natives with similar appeal, consider exploring other Psidium species or consulting with local native plant experts about proven alternatives that can provide that authentic tropical look while you research mountain guava further.

Mountain Guava

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

Myrtales

Family

Myrtaceae Juss. - Myrtle family

Genus

Psidium L. - guava

Species

Psidium amplexicaule Pers. - mountain guava

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