Environment
Fact-checked

At AllThingsNature, we're committed to delivering accurate, trustworthy information. Our expert-authored content is rigorously fact-checked and sourced from credible authorities. Discover how we uphold the highest standards in providing you with reliable knowledge.

Learn more...

What Is a Sandalwood Tree?

Melanie Smeltzer
Melanie Smeltzer

The sandalwood tree, also sometimes called the Indian sandalwood or S. album, is a small, fragrant species in the Santalaceae family. Additionally, it belongs to the genus Santalum, which boasts 25 separate species that are also occasionally referred to as sandalwood. This tree, native to areas of the Indian subcontinent, is evergreen and hemiparasitic, meaning that it obtains a portion of its nourishment from other plants. It is considered vulnerable to extinction due to overzealous harvesting, but despite this, the oil from the wood of this tree is still a common ingredient in fragrances and cosmetics.

Though the sandalwood tree is native to semi-arid locations of India, it is often grown in northwestern Australia, the Philippines, Sri Lanka, and China. The height that this plant reaches often depends upon location. For instance, in Australia, it can grow to a relatively small 13 to 29 feet (4 to 9 m); however, in its native India, it can reach much larger heights of about 65 feet (20 m). Smaller varieties typically reach a girth of around 4 to 5 feet (1.2 to 1.5 m), while the larger-growing trees may get to around 8 feet (about 2.4 m).

Sandalwood extract is taken from the heartwood of the sandalwood tree.
Sandalwood extract is taken from the heartwood of the sandalwood tree.

The wood of the sandalwood tree can vary, and its appearance tends to differ according to the age of the plant. Color generally varies between a dark brown or deep gray, but may also be reddish brown or nearly black. Younger plants typically bear smooth bark, while older trees tend to display rough, red cracks. The heartwood, or the non-living, inner portion of the tree trunk, is generally light green or nearly white. Due largely to its sweet scent, the woody portion of the sandalwood tree is one of its most favored attributes, but the foliage and flowers are also important to its structure and aesthetic appeal.

Sandalwood trees are often grown in northwestern Australia.
Sandalwood trees are often grown in northwestern Australia.

Sandalwood tree leaves are generally oval shaped with pointed tips, but may also be long and wide at the center. They are often shiny and green on top, but bluish-gray at the bottom. The flowers can range in color from a purplish-brown to violet, and green to red, and typically appear in clusters. These trees also bear edible fruits that appear a couple of times a year, between April and May, and October and November. The fruits are generally red, purple, or black, have a spherical shape, and supple flesh that surrounds a stone-like seed covering.

Frequently Asked Questions

What is unique about the sandalwood tree?

Sandalwood trees, particularly from the genus Santalum, are renowned for their aromatic heartwood. This heartwood contains essential oils that have been prized for centuries in perfumery, traditional medicine, and religious rituals. The slow-growing nature of these trees, taking up to 60 years to mature, makes their oil-rich wood exceptionally valuable.

Where do sandalwood trees typically grow?

Sandalwood trees thrive in the dry, tropical climates found in regions like India, Australia, and the Pacific Islands. They are particularly associated with the Indian subcontinent, where the Indian sandalwood (Santalum album) is native. These trees require well-drained soils and can often be found in semi-arid environments.

How is sandalwood used in traditional medicine?

In traditional medicine, especially within Ayurveda, sandalwood is used to treat various conditions due to its antiseptic and anti-inflammatory properties. It is believed to help in cooling the body, treating digestive issues, and improving mental clarity. Its oil is also used in aromatherapy to promote relaxation and reduce anxiety.

What are the environmental concerns associated with sandalwood?

Due to high demand, sandalwood species have faced over-harvesting, leading to significant declines in natural populations. This over-exploitation has resulted in some species, like the Indian sandalwood, being listed as vulnerable by the IUCN. Sustainable cultivation and trade regulations are crucial to protect these trees from further endangerment.

Can sandalwood be cultivated, and how long does it take to grow?

Yes, sandalwood can be cultivated, but it requires patience due to its slow growth rate. It can take between 10 to 15 years for a tree to become harvestable for its oil, and up to 60 years to fully mature. Cultivation also involves a host plant, as sandalwood is semi-parasitic and relies on other plants for nutrients during its early growth stages.

What makes sandalwood oil so valuable?

Sandalwood oil's value lies in its complex and long-lasting fragrance, which is widely used in high-end perfumes and cosmetics. The oil contains sesquiterpenes, which contribute to its distinctive woody scent. Its rarity, due to the slow growth and over-harvesting of sandalwood trees, also contributes to its high market price.

Discussion Comments

Feryll

There are so many commercial uses for the sandalwood tree that many people don't even know that parts of the tree can be eaten. The native people of Australia eat the nuts and fruit from the sandalwood trees that grow in their country.

Animandel

Oil from the sandalwood tree was used in medicines for many years. The oil was popular in skin medications that were made to clear up rashes and other skin irritations. However, sandalwood oil is strong and should always be diluted before it is put on the skin.

Sporkasia

I would love to be able to grow sandalwood trees. Unfortunately, the trees need average year around temperatures in the neighborhood of 80 degrees. I live in an area with very cold winters, so I don't think I would have much luck keeping them alive.

mobilian33

I find it interesting that the sandalwood tree is valued more for its scent than its wood. The wood can be used to make very beautiful pieces of furniture. However it is the smell that the tree gives off that makes it so valuable.

The ground up wood from the trees is used to make incense. The smell of sandalwood is believed by some people to be beneficial in helping people to focus during meditation practices.

Maybe the biggest reason sandalwood trees are worth as much as they are is because the oil from the trees is used by cosmetic companies to make soaps and perfumes that are big sellers.

Post your comments
Login:
Forgot password?
Register:
    • Sandalwood extract is taken from the heartwood of the sandalwood tree.
      By: Elena Ray
      Sandalwood extract is taken from the heartwood of the sandalwood tree.
    • Sandalwood trees are often grown in northwestern Australia.
      By: Tupungato
      Sandalwood trees are often grown in northwestern Australia.