The Baobab: Zimbabwe’s Tree of Life

Scientific name: Adansonia digitata

Shona: Muwuyu, Muuyu

Ndebele: Umkhomo

The baobab has been woven into the history, culture and ecology of Zimbabwe for centuries. It is sometimes called the “Tree of Life”, not because of its remarkable longevity but also through its ability to provide food, shelter, water and habitat in some of the harshest environments on Earth. 

Baobab Myths and Beliefs in Zimbabwe

Myths surrounding the baobab tree primarily serve to explain its bizarre appearance and many traditional beliefs protect its ecosystem, and see it as connecting local communities to the spiritual realm.

The “Upside Down” Tree

• The Pride of the Baobab: Among the Shona, a prevailing legend sees the baobab among the very first trees created by the Creator. It became vain and constantly boasted about its height and beauty. Angered by its arrogance, the Creator ripped the tree out of the soil and replanted it upside down with its roots pointing toward the heavens, so as to humble the boastful tree.
• The Wandering Tree: Another variation suggests that when the Creator originally planted the baobab, it kept walking from place to place. To stop it from wandering across the continent, the Creator pulled it up and replanted it upside down.

Association with Spirits

• Haunted Flowers: According to local folklore, spirits haunt the baobab’s large white, nocturnal flowers. It is believed that anyone who plucks the sweet flowers will be killed by a lion.
• Home to Ancestors: In Zimbabwean tradition, baobab trees are considered sacred. Their often hollow, cave-like trunks are widely believed to house ancestral spirits, making them important natural shrines or sites for rituals and rainmaking ceremonies. Cutting baobabs down is heavily taboo.

Source of Blessing and Protection

• Warrior Traits: Traditional beliefs suggest that washing a young boy in water steeped with baobab bark will help him grow up to be as strong, and long-living as the tree itself.
• Crocodile Repellent: Some legends hold that drinking the water in which baobab seeds have been soaked acts as a protective charm against crocodile attacks.

A Giant of Zimbabwe’s Dry Woodlands

In Zimbabwe baobabs are found in the hotter, drier parts of the country below about 1,200 metres above sea level, particularly in areas such as the Zambezi Valley and the Lowveld, the Save Valley and Gonarezhou.

The African baobab is a massive tree, typically reaching about 20 metres in height, with a trunk that may exceed 10 metres in diameter.

Some specimens are thought to be over a thousand years old. The Panke Baobab in Mbuma, in the Matabeleland North Province of Zimbabwe, was the oldest accurately documented flowering plant in the world.

Carbon dating estimated its age at roughly 2,500 years old before its multiple stems collapsed and died between 2010 and 2011. It had a circumference of 25.5 meters and enclosed roughly 400 cubic meters of wood and bark.

In Zimbabwe there is a common belief that that one meter of trunk circumference equals approximately 100 years of age. This can be wildly inaccurate because the matter is hugely affected by the circumstances that have affected a tree during its growth. A 100-year-old tree which has had a good start in life with plenty of water and nutrition can have a bigger circumference than a 500-year-old tree which has struggled with harsh conditions.

The Life Cycle of a Baobab

The life of a baobab begins with a surprisingly small seed enclosed within a large, hard fruit. The fruit contains a dry, nutritious pulp rich in vitamin C and numerous seeds. Animals such as baboons, monkeys and other mammals consume the fruit and help disperse the seeds across the landscape.

When conditions are favourable, a seed germinates and produces a slender seedling with a swollen taproot. Young baobabs look so different from mature trees that many people fail to recognise them. This has led to the myth that there are no young baobabs and that mature trees somehow appear fully formed.

Growth is slow but steady. As the tree matures, it develops its characteristic thick trunk and broad branches. An unusual feature of baobabs is that neighbouring young trees may fuse together. Over time, several stems can merge into what appears to be a single enormous trunk, creating some of the giant specimens seen today and providing mutual strength and water retention for all the trees involved. (The technical term for this phenomenon is inosculation.)

Flowers usually appear between October and December. The large white flowers open at dusk and remain fresh for only a single night before dropping their petals the following day.

The flowers hang down on long stalks making them easily accessible for their pollinators.

Historically, baobabs were believed to rely entirely on fruit bats for pollination, but recent ecological research across Africa reveals a complex regional split. While bats are the primary pollinators in West and East Africa, hawkmoths dominate in Southern Africa.

 After successful pollination, the flowers develop into the familiar hard-shelled fruits that ripen during the dry season.

A baobab pod consists of a tough, woody outer shell protecting:

• A dry, powdery white pulp which dehydrates naturally while still on the branch and crumbles into a dry powder that has a naturally tart, tangy, and slightly sweet flavour reminiscent of citrus or sherbet. This “cream of tartar” is highly nutrient-dense, containing high levels of vitamin C, prebiotic dietary fibre, and antioxidants.
• Dozens of hard, dark brown, kidney-shaped seeds are embedded within the dry pulp are. These seeds are rich in proteins, fats, and essential minerals. They are often pressed to extract a nutrient-rich cosmetic and cooking oil, or ground into flour and pastes.
• A network of rough, web-like, reddish-brown fibrous threads runs through the pod, holding the pulp and seeds together. These fibres are also rich in antioxidants and nutrients.

A healthy baobab can survive for many centuries but when it finally dies, it often disappears with surprising speed. Because the trunk is largely composed of water-filled fibres rather than dense timber, dead trees collapse and decompose rapidly, sometimes leaving little trace within a year.

Mastering Water in a Dry World

The baobab’s most remarkable achievement is its ability to survive in regions where rainfall is highly seasonal and limited and droughts may last for years.

Unlike most trees, it is not built from dense hardwood. Instead, its trunk is composed of a fibrous, sponge-like tissue. A baobab is officially classified as a stem succulent and is widely recognized by botanists as the largest succulent plant in the world. While it takes the physical shape and height of a massive tree, its spongy, water-storing tissues behave exactly like those of smaller succulents.

The baobab has important adaptations to, firstly, obtain water and secondly, retain water.

Obtaining water is facilitated by:

Extensive Root System – Beneath the ground, the baobab develops a widespread root system capable of collecting moisture from a very large area. Rather than relying on a single deep taproot, mature trees spread their roots widely through the soil, intercepting scarce rainfall wherever it falls.

Ability to absorb water through the bark – When the scanty rain falls drops run down the bark and pool at the intersections of branches and water is absorbed directly through the bark.

The swollen trunk functions as a giant reservoir. Up to 80% of the trunk’s volume may consist of stored water. This reserve allows the tree to survive long dry periods when other plants would wither.

The baobab has adaptations to almost entirely reduce unnecessary water loss:

Water-retaining Leaves – When leaves are present, they are compound and divided into several smaller leaflets. This design reduces the total surface area exposed to the sun and helps minimise water loss. Their leathery, glossy surface also reflects sunlight and reduces overheating.

Shiny, slick bark – This smooth, reflective surface helps reflect heat, reducing moisture loss. (The bark is also remarkably resistant to fire and can regenerate rapidly after damage.)

Seasonal Leaf Loss – The baobab is drought-deciduous. During the long dry season, it sheds its leaves entirely, dramatically reducing water loss through transpiration. For much of the year it stands leafless, conserving precious moisture until the rains return.

Photosynthetic Bark

Most trees depend entirely on their leaves for photosynthesis. The baobab, however, can photosynthesise through its green bark and branches. Even after shedding its leaves, it continues producing energy and maintaining basic growth.

A Keystone Species

Few African trees support as much life as a mature baobab.

Its flowers provide nectar for nocturnal pollinators such as bats and insects.

The fruit feeds a wide variety of animals during the dry season when food is scarce. Elephants, baboons, monkeys, warthogs, birds and many other species consume the nutrient-rich pulp and disperse the seeds.

Large baobabs often develop hollows and cavities that become homes for birds, bats, reptiles and insects. Ground hornbills, owls, weavers and numerous other species use these natural shelters.

For elephants, baobabs can be particularly important. During droughts, elephants often strip bark and chew into trunks to obtain the water stored inside. While this demonstrates the tree’s value as a resource, it can also cause severe damage.

The tree is equally important to people. Communities have long relied on its fruit, leaves, bark and seeds for food, medicine, fibre and shelter. In times of drought, baobab products often provide a vital safety net.

Threats to the Future of the Baobab

Despite its legendary toughness, the baobab faces a growing number of threats.

Climate Change

The most serious long-term threat appears to be climate change. Over the past two decades, scientists have documented unusually high mortality among Africa’s oldest and largest baobabs. Studies have found that many ancient giants have either died completely or lost their oldest stems. Researchers suspect that increasing temperatures and more severe droughts are placing unprecedented stress on these trees.

Poor Regeneration

In some areas, very few young baobabs are surviving to maturity. Reports from parts of Zimbabwe suggest that people sometimes harvest the swollen taproots of seedlings for food, preventing new generations from becoming established.

Elephant Damage

Growing elephant populations in some protected areas have led to increased bark stripping and physical damage. In Gonarezhou National Park, conservationists have resorted to wrapping trunks in wire mesh and surrounding trees with rocks and logs to protect them from elephant damage. These measures have significantly improved survival rates.

Human Exploitation

Although baobabs can survive moderate harvesting of bark and leaves, excessive removal of bark for rope, mats and other products can weaken trees. Increasing human pressure on dryland ecosystems may also reduce seedling survival and alter pollinator populations.

Disease

The stripping of bark by elephants and humans makes baobabs vulnerable to a fungal infection referred to as “sooty mould disease”, a condition where the bark turns dark and appears burnt. It is caused by fungi (Ascomycota, like Rachicladosporium africanum) that thrive on environmental stress, particularly drought and physical injury.

A Living Symbol of Zimbabwe

The baobab is a living reservoir, a wildlife refuge, a source of food and medicine, and a cultural icon that has witnessed centuries of Zimbabwean history. It embodies endurance in landscapes defined by drought and uncertainty. Yet even this giant of the African savanna is not invulnerable.

Protecting baobabs means protecting the ecosystems, pollinators and climatic conditions that allow them to survive. If future generations are to stand in awe of Zimbabwe’s ancient muwuyu trees, conservation efforts must ensure that new seedlings continue the story begun thousands of years ago.