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25 March 2025 | Story Andre Damons | Photo Andre Damons
Dr Gerard Verhoef
Dr Gerard Verhoef, an intellectual property (IP) commercialisation specialist at Barnard Incorporated Attorneys, gave an oral presentation at the second Southern African Mountain Conference.

South Africa is neglecting and overlooking the economic potential of Aloe ferox, forfeiting millions in potential revenue from this ‘green gold’. In doing so, the country is denying farmers and communities the chance to prosper from the land’s true bounty and is also undermining its biodiversity.

While South Africa harvests a mere 200 tons of Aloe ferox annually, its global competitors, such as Mexico, churn out a staggering 400 000 tons of Aloe vera, says Dr Gerard Verhoef, an intellectual property (IP) commercialisation specialist at Barnard Incorporated Attorneys. He gave an oral presentation titled IKS, the public domain and Biotrade during a session on Mountain People's Livelihoods at the second Southern African Mountain Conference (SAMC2025).

Researchers, policy makers, and practitioners from across Southern Africa and beyond came together from 17 to 20 March at the scenic Champagne Sports Resort in the central Maluti-Drakensberg for SAMC2025 themed ‘Overcoming Boundaries and Barriers’.

The next rooibos

SAMC2025, under the patronage of UNESCO and organised by the University of the Free State (UFS) Afromontane Research Unit (ARU) – in partnership with the African Mountain Research Foundation (AMRF) and the Global Mountain Safeguard Research Programme (GLOMOS) – delved into critical issues around mountain ecosystems, communities, governance, and transboundary cooperation.

Aloe ferox could be the next rooibos, which is successfully using its geographical indications (GI) status to unlock value throughout the biotrade value chain, Dr Verhoef said. Other South African plants that are also an underutilised asset with economic potential for the country, include honeybush, baobab, umsuzwane, rose geranium, imphepho, Cape chamomile, Kalahari melon, mafura, sour plum, and African ginger.

A GI consists of the name of the place of origin. It links a product to a specific geographical area, which indicates the origin of where the product is produced, processed, or prepared.

Overlooking the potential of Aloe ferox, which has been scientifically proven to contain double the amino acids and 20 times more antioxidants than its international cousin, Aloe vera, Dr Verhoef explains, South Africa is not only undermining its biodiversity but also the economy. Aloe ferox is most popularly used for its laxative effect (aloe bitters) and as a topical application to the skin, eyes, and mucous membranes. It is also used for many traditional uses as well as cosmetic purposes.

Time to capitalise

According to him, Aloe ferox remains an underutilised asset, relegated to niche markets and small-scale production due to regulatory constraints and the unwillingness to obtain access and benefit-sharing (ABC) permits needed to navigate obstacles in South Africa as well as Namibia, Botswana, Zimbabwe, and Mozambique.

“This is not just an agricultural oversight; it is a glaring economic misstep. It is high time that South Africa capitalises on its green gold, turning the tables on international competitors and finally giving Aloe ferox the global podium it deserves. This is not just an agricultural oversight; it is a glaring economic misstep.

Aloe ferox could be a flagship in the global wellness market, much like rooibos has become for tea. But until we embrace and promote our indigenous resources with the same vigour as we do foreign ones, our ‘green gold’ will remain just out of reach, a latent promise unfulfilled. It’s high time South Africa capitalise and turn the tables on international competitors, finally giving Aloe ferox the global podium it deserves,” said Dr Verhoef.

The path forward, he explains, requires a radical shift in how we view and value our native species. It demands a coalition of dedicated scientists, legal advisers, and farmers to advocate for more accommodating regulations and stronger market support. The pharmaceutical and cosmetic industries – major users of aloe products – must also be brought into the fold to help recalibrate the scales in favour of Aloe ferox. South Africa’s rich biodiversity is a national treasure, yet our approach to leveraging this wealth remains timid and fragmented.

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

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