Characteristics of Rainbow Tree (Eucalyptus deglupta) in the Wild

Eucalyptus deglupta
Rainbow tree is the only Eucalyptus species that live in the rainforest. The tree’s original habitat includes the Philippines, Indonesia, and Papua New Guinea.

The spread of the Rainbow tree extends naturally to the northern hemisphere. The tree is very easy to recognize, it’s because the bark has bright and striking colors like blue, green, orange, and red.

The Rainbow tree was first described in 1850 by Carl Ludwig Blume, who published an explanation in his book “Museum Botanicum Lugduno-Batavum sive stirpium Exoticarum, Novarum or Minus Cognitarum, former Vivis, Siccis Brevis Expositio et Descriptio” of specimens collected at Celebes.


Characteristics of the Rainbow Eucalyptus Leaf

Eucalyptus deglupta Leaf
Source : and Kim Starr

The leaves are arranged in pairs, opposite, 8-15 cm long and 6-8 cm wide.


Characteristics of the Rainbow Eucalyptus Flower

Eucalyptus deglupta Fruit
Source : and Kim Starr

Rainbow tree flowers are arranged in branching inflorescences on leaf axils or at the ends of branchlets, each branch with a group of seven buds, each bud on a pedicel about 5 mm in length. Adult flower buds are pale green or cream-colored, round in shape and 2-5 mm in diameter with a hemispheric operculum and a small dot at the top.

The flowering time depends on the location and the stamens which give the flower a yellowish-white color.


Characteristics of the Rainbow Eucalyptus Fruit

Eucalyptus deglupta Fruit
Source : and Kim Starr

Rainbow tree fruit is brown, capsule-shaped about 3-5 mm long, and three or four valves extend beyond the edge of the fruit. Each fruit cell contains 3-12 brown seeds, each with a small wing.


Characteristics of the Rainbow Eucalyptus Tree

Eucalyptus deglupta Tree
Source :

Rainbow tree have fast growth, usually, the height of this tree in the wild reaches 60-70 meters with a trunk diameter of up to 2 meters. The bark is smooth and brightly colored.

Often Rainbow tree are found growing in lowland and lowland rain forests at an altitude of 1,800 m above sea level.


The Rainbow tree is widely planted throughout the world, especially for its wood as raw material for making paper.

Rainbow tree are also often planted as ornamental trees in tropical climates such as southeast Asia, Hawaii, Southern California, Texas, and Louisiana.


Rainbow tree can be cultivated through their fruit seeds. To germinate, seeds to be planted must be in an area that has a temperature between 20-22 °C.

Apart from seeds, Rainbow tree can also be propagated by cuttings. Treated trees must be less than 5 years old. Trees older than 5 years have growth retardation properties and result in unsuccessful cuttings.


Add a Comment

Your email address will not be published.