Living up to 200 years, this succulent plant has a photosynthetic mechanism that allows it to adapt to semi-arid or rainforest like conditions. This fleshy leafed, edible, sour tasting succulent is sometimes referred to as 'elephants delicacy', 'pork bush' or 'dwarf jade plant'. It is a favourite food choice for elephants, black rhino, kudu, nyala, bushbuck. etc. The Afrikaans word 'spek' directly translates to 'pork bush'.
Spekboom is unique, in that it stores solar energy during the day and performs photosynthesis at night, producing food for the plant and releasing OXYGEN into the atmosphere. Most plants use only one type of photosynthesis, while spekboom uses two of the three types of photosynthesis.
The shrub can grow two to five metres tall and can survive extremely dry conditions, frost and fires and thrives in sub-tropical areas of South Africa.
In March 2019, an Getaway article claimed that spekboom is 'more effective than the Amazon rainforest at sucking carbon dioxide out of the atmosphere'. It also quoted The Spekboom Foundation of South Africa as saying that spekboom 'is ten times more effective per hectare at carbon fixing than any tropical than any tropical rainforest.'
Spekboom 'is effective at sequestering carbon, but only within its natural habitat' [Kelly Vlieghe C4 Solutions]. Therefore, caution should be taken in suggesting that rapidly disappearing tropical rainforests and their threatened ecosytems can be effectively replaced with vast plantings of spekboom. Fragile, threatened ecosystems could potentially be outcompeted if vast plantations of spekboom are used to restore degraded ecosystems, in arid and semi-arid regions in Southern Africa, where it is does not naturally grow. (For example, the habitats of critically endangered Cape Flats Sand Fynbos, where rare flora could be outcompeted.)
Whatever the hype around the 'Spekboom Challenge', in South Africa, there can be no doubt that planting SPEKBOOM in YOUR gardens to complement other indigenous flora and ornamentals can only bring you JOY, GOOD HEALTH and help reduce YOUR carbon footprint.