North America Native Plant

Singapore Graveyard Flower

Botanical name: Plumeria obtusa var. obtusa

USDA symbol: PLOBO

Life cycle: perennial

Habit: tree

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

Synonyms: Plumeria krugii Urb. (PLKR3)  âš˜  Plumeria portoricensis Urb. (PLPO3)   

Singapore Graveyard Flower: A Fragrant Native Caribbean Beauty If you’re lucky enough to garden in tropical paradise, the Singapore graveyard flower (Plumeria obtusa var. obtusa) might just be the perfect addition to your landscape. Don’t let that somewhat somber common name fool you – this stunning native tree brings nothing ...

Singapore Graveyard Flower: A Fragrant Native Caribbean Beauty

If you’re lucky enough to garden in tropical paradise, the Singapore graveyard flower (Plumeria obtusa var. obtusa) might just be the perfect addition to your landscape. Don’t let that somewhat somber common name fool you – this stunning native tree brings nothing but life and beauty to any garden setting.

A True Caribbean Native

The Singapore graveyard flower is a genuine native species of Puerto Rico and the U.S. Virgin Islands, making it an excellent choice for gardeners in these regions who want to support local ecosystems. Also known by its synonyms Plumeria krugii and Plumeria portoricensis, this perennial tree species has been gracing Caribbean landscapes for centuries.

You’ll find this beautiful tree naturally growing throughout Puerto Rico and the Virgin Islands, where it has adapted perfectly to the tropical climate and coastal conditions.

What Makes This Tree Special

As a true tree species, the Singapore graveyard flower typically grows as a single-stemmed woody plant that can reach impressive heights of 13 to 16 feet or more. In some environmental conditions, you might see it develop a multi-stemmed growth pattern or stay a bit shorter, but it always maintains that classic plumeria elegance.

The real showstopper? Those incredibly fragrant white flowers with sunny yellow centers that bloom throughout the warm months. The glossy green foliage provides a perfect backdrop for these stunning blooms, and the overall tree form creates an attractive specimen that works beautifully as both a focal point and a shade provider.

Perfect for Tropical Gardens

This native beauty shines in tropical and subtropical garden settings, particularly in coastal landscapes where it feels right at home. Whether you’re designing a formal tropical garden or a more relaxed island-style landscape, the Singapore graveyard flower serves multiple roles:

  • Specimen tree for creating focal points
  • Shade provider for outdoor living spaces
  • Ornamental flowering tree for seasonal interest
  • Native plant choice supporting local wildlife

Growing Conditions and Care

If you’re gardening in USDA hardiness zones 10-12, you’re in luck! The Singapore graveyard flower thrives in these warm, tropical conditions. Here’s what this easy-going native needs to flourish:

Location: Choose a spot with full sun exposure – this tree loves soaking up those tropical rays all day long.

Soil: Well-draining soil is absolutely essential. While this tree is fairly adaptable, it won’t tolerate soggy conditions.

Water: Once established, your Singapore graveyard flower becomes quite drought tolerant, making it perfect for low-maintenance landscapes.

Temperature: Keep it warm! This tropical native needs protection from cold temperatures and definitely can’t handle frost.

Planting and Care Tips

Getting your Singapore graveyard flower off to a great start is straightforward with these helpful tips:

  • Plant during the warmest months when the tree can establish quickly
  • Water regularly during the first year, then reduce frequency as the tree becomes drought tolerant
  • Prune lightly to maintain shape and remove any dead or damaged branches
  • Protect from strong winds, especially when young
  • Apply a balanced fertilizer during the growing season for best flowering

Supporting Local Wildlife

By choosing this native species, you’re doing more than just beautifying your landscape. The Singapore graveyard flower’s fragrant evening blooms attract moths and other nocturnal pollinators, supporting the local ecosystem that has evolved alongside this beautiful tree.

Is This Tree Right for Your Garden?

The Singapore graveyard flower is an excellent choice if you’re gardening in Puerto Rico or the Virgin Islands and want a low-maintenance, beautiful native tree that supports local wildlife. Its drought tolerance, stunning flowers, and impressive size make it perfect for tropical landscapes where you want both beauty and ecological benefits.

However, if you’re gardening outside of zones 10-12, this tropical native won’t survive your climate. In that case, consider researching native alternatives that are suited to your specific region and hardiness zone.

For those lucky enough to garden in its native range, the Singapore graveyard flower offers the perfect combination of easy care, stunning beauty, and ecological responsibility – what more could a tropical gardener ask for?

Singapore Graveyard Flower

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

Gentianales

Family

Apocynaceae Juss. - Dogbane family

Genus

Plumeria L. - plumeria

Species

Plumeria obtusa L. - Singapore graveyard flower

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