North America Native Plant

Olebtaches

Botanical name: Calophyllum soulattri

USDA symbol: CASO12

Life cycle: perennial

Habit: tree

Native status: Native to Pacific Basin excluding Hawaii  

Olebtaches: A Majestic Pacific Island Shade Tree If you’re lucky enough to garden in the tropical Pacific, you might want to get acquainted with olebtaches (Calophyllum soulattri), a stunning native tree that’s been quietly beautifying island landscapes for centuries. This impressive evergreen isn’t your average backyard tree – it’s a ...

Olebtaches: A Majestic Pacific Island Shade Tree

If you’re lucky enough to garden in the tropical Pacific, you might want to get acquainted with olebtaches (Calophyllum soulattri), a stunning native tree that’s been quietly beautifying island landscapes for centuries. This impressive evergreen isn’t your average backyard tree – it’s a true statement piece that deserves serious consideration for larger properties and tropical landscapes.

What Makes Olebtaches Special?

Olebtaches is a perennial tree that means business when it comes to size. This woody giant typically grows with a single, sturdy trunk and can easily reach heights of 13-16 feet or more, making it an excellent choice for those seeking substantial shade and visual impact. Its glossy, leathery leaves create a lush canopy that screams tropical paradise, while its fragrant white flowers add seasonal beauty and attract beneficial pollinators like bees.

Where Does This Beauty Call Home?

This magnificent tree is native to the Pacific Basin (excluding Hawaii) and naturally grows in Guam and Palau. If you’re gardening in these areas, choosing olebtaches means you’re supporting your local ecosystem with a plant that’s perfectly adapted to your climate and conditions.

Is Olebtaches Right for Your Garden?

Before you fall head-over-heels for this tropical beauty, let’s talk practical matters. Olebtaches is definitely not a plant for small spaces or colder climates. Here’s what you need to know:

  • It thrives in USDA hardiness zones 10-11 only (tropical climates)
  • Requires substantial space due to its large mature size
  • Best suited for large residential properties, parks, or commercial landscapes
  • Perfect as a specimen tree or shade provider

Growing Conditions and Care

The good news? Olebtaches is relatively low-maintenance once you meet its basic needs:

  • Light: Full sun to partial shade
  • Soil: Well-draining soil (coastal tolerance is a bonus!)
  • Water: Regular watering when young, becomes drought tolerant with age
  • Climate: Warm temperatures year-round are essential

Planting and Care Tips

Getting your olebtaches off to a strong start is key to long-term success:

  • Choose your location carefully – remember, this tree will be with you for decades
  • Ensure adequate space for the mature canopy spread
  • Water consistently during the establishment period (first 1-2 years)
  • Take advantage of its coastal tolerance if you’re near the ocean

The Bottom Line

Olebtaches isn’t for everyone, but if you have the space and the right climate, it’s a fantastic native choice that will reward you with decades of tropical beauty, valuable shade, and pollinator support. Just make sure you’re in zones 10-11 and have room for a tree that likes to make a big impression!

For gardeners outside its native range or those with smaller spaces, consider researching native shade trees specific to your region – every area has its own magnificent native species waiting to be discovered.

Olebtaches

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Theales

Family

Clusiaceae Lindl. - Mangosteen family

Genus

Calophyllum L. - calophyllum

Species

Calophyllum soulattri Burm. f. - olebtaches

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