There is no succulent quite like the fan aloe. While every other alooid arranges its leaves in a rosette or a spiral, Kumara plicatilis does something unique: it spreads its grey-green, tongue-shaped leaves in two opposite rows, like the pages of an open book — or a hand-held fan. This distichous arrangement, mounted on dichotomously branching grey stems that build a sculptural, multi-headed small tree over the decades, makes the fan aloe one of the most architecturally striking succulents in existence. It looks like nothing else on Earth.
And it grows like nothing else in the alooid world. Kumara plicatilis is a winter-grower from the fynbos mountains of the Western Cape — a Mediterranean-climate plant that puts on its best growth in the cool, wet winter months and goes semi-dormant in the hot, dry summer. This makes it the ideal alooid for cool-summer climates — coastal UK, the Pacific Northwest, San Francisco, the French Atlantic coast, New Zealand — places where summer-growing aloes and agaves struggle, but where the fan aloe thrives.
Kumara is also a genus with an exceptional taxonomic history. Its name, established by Medikus in 1786, is the oldest genus name in the alooid group — older than Haworthia (1809), older than Gasteria (1809), older than Astroloba (1947). It was consigned to synonymy for over two centuries before being revived in 2013. And it contains just two species — the famous fan aloe and a mysterious, nearly uncultivable mountain dweller that most growers have never heard of.
This page is the reference for the genus Kumara on our site. It covers taxonomy, both species, cultivation for cool-summer climates and the resources that every fan aloe grower needs.
Taxonomy and classification
The oldest alooid genus name
The genus Kumara was described by Friedrich Kasimir Medikus in 1786 — making it the oldest genus name applied to any alooid. Medikus separated the fan aloe from Aloe on the basis of its radically different leaf arrangement and branching pattern. However, the name was soon abandoned and the species returned to Aloe, where it remained for over two centuries — as Aloe plicatilis (L.) Mill. (the name given by Philip Miller in 1768, based on Linnaeus’s Aloe disticha var. plicatilis of 1753).
The origin and meaning of the name Kumara remain uncertain — Medikus did not explain it. It may derive from a South African local name, or it may be an invention of the author. Whatever its etymology, the name is now firmly re-established.
Revival and current circumscription
In 2013, Grace et al. revived the genus Kumara as part of the reclassification of Aloe, transferring Aloe plicatilis to Kumara plicatilis. Manning et al. (2014) broadened the genus to include a second species — Kumara haemanthifolia (formerly Aloe haemanthifolia), a small, stemless, cliff-dwelling plant that shares the distichous leaf arrangement of the fan aloe but looks radically different in every other respect. The two-species circumscription is supported by molecular phylogenies and is accepted by POWO and the CITES checklist (2025).
Position in the alooid group
Kumara belongs to the family Asphodelaceae, subfamily Asphodeloideae, within the alooid clade. Its phylogenetic position is not fully resolved — some analyses place it within the “true aloe” clade, close to Aloidendron (the tree aloes), while others recover it in a different position, closer to Haworthia sensu stricto. The instability of its placement in different analyses, depending on the molecular markers used, is one of the more intriguing unresolved questions in alooid systematics. What is clear is that Kumara is a distinct, early-branching lineage — it does not belong within Aloe sensu stricto, and it is not closely related to the tree aloes despite sharing their dichotomous branching.
Dichotomous branching — shared with Aloidendron, but different
Both Kumara plicatilis and Aloidendron species branch dichotomously (the growing tip divides into two equal forks). This similarity led some older treatments to group them together. However, there is a fundamental difference: in Aloidendron, the leaves at each branch tip are arranged in a rosette (spiralling around the stem apex); in Kumara, they are arranged in two opposite rows (distichous, “fan-like”). This difference — rosette versus fan — is why the two genera were kept separate, and molecular data supports this separation.
Distribution
Kumara is endemic to the mountains of the Western Cape, South Africa — the most geographically restricted of all alooid genera along with Tulista. Both species grow exclusively in the fynbos biome, on sandstone substrates, in a region of high winter rainfall and cool, misty conditions.
Kumara plicatilis is confined to a small area between Franschhoek and Elandskloof, with seventeen known populations often separated by over ten kilometres. It grows on steep, rocky, south-facing slopes in well-drained, sandy, acidic soil, among proteas, ericas and other fynbos vegetation.
Kumara haemanthifolia has an even more restricted distribution — steep, rocky slopes and near-vertical cliffs on cool mountain peaks from the Hottentots Holland Mountains to the Cold Bokkeveld Mountains, at altitudes of 500 to 1 700 metres. It inhabits damp, grassy, south-facing aspects that benefit from orographic mist and clouds carried by the summer south-easterly winds.
Together, the two species occupy one of the smallest total ranges of any alooid genus. Very few other alooids occur in this corner of South Africa — the exceptions are the fynbos-endemic Aloiampelos commixta (Cape Peninsula) and the rare scrambling aloe Aloiampelos juddii.
Morphology
The two species of Kumara look strikingly different from each other — one is a tree, the other a near-stemless ground-hugger — but they share the distichous leaf arrangement that defines the genus.
Shared characters
Leaves: arranged in two opposite rows (distichous) — the defining character. This “fan” or “book-like” arrangement is unique among alooids. Leaves are tongue-shaped, fleshy, grey-green, with margins nearly smooth (minute teeth visible only on close inspection). Leaf sap is clear — not the yellow, bitter exudate found in Aloe and Tulista.
Flowers: tubular, scarlet to bright red, fleshy, borne in unbranched, cylindrical racemes. Flowering occurs in late winter to early spring (August–October in the southern hemisphere). Pollinated by sunbirds.
Habitat: both species are fynbos endemics on sandstone in winter-rainfall areas.
Differences
Kumara plicatilis: a much-branched shrub or small tree reaching three to five metres tall. Thick, grey, dichotomously branching stems with corky bark. Leaf fans at each branch tip contain ten to sixteen leaves, each about thirty centimetres long and four centimetres wide. The plant has a massive, sculptural form that develops over decades.
Kumara haemanthifolia: a stemless or short-stemmed ground-hugger with a strong underground rootstock. Rosettes of broad, flat, tongue-shaped leaves — much wider and softer than those of K. plicatilis — with distinctive bright red margins. The inflorescence reaches about fifty centimetres. The plant looks nothing like the fan aloe at first glance — if anything, it resembles a small Haemanthus (blood lily), hence its species name. It is the miniature, cliff-dwelling counterpart to the fan aloe — sharing the distichous arrangement but adapted to a completely different ecological niche.
The two species
Kumara plicatilis (L.) G.D. Rowley
Synonyms: Aloe plicatilis (L.) Mill., Aloe disticha var. plicatilis L., Aloe tripetala Medik.
Common names: fan aloe, waaieraalwyn (Afrikaans), kaapse kokerboom (Cape quiver tree), book-leaf aloe, Franschhoek aloe.
Description: a much-branched succulent shrub or small tree reaching three to five metres tall. Grey, forking stems with thick, corky bark — the bark protects the plant from the fast-moving fynbos fires that periodically sweep through its habitat. Fans of ten to sixteen grey-green, tongue-shaped leaves at each branch tip, each about thirty centimetres long. At the end of winter (August–October), the plants produce masses of bright scarlet, tubular flowers (about fifty millimetres long) — up to thirty per raceme. The clear leaf sap has wound-healing properties and is used locally to treat skin conditions and reportedly diabetes.
History: the first botanical description dates to 1695, when Heinrich Bernhard Oldenland, master gardener at the Dutch East India Company garden in Cape Town, gave it its first Latin name. Philip Miller grew it at the Chelsea Physic Garden from 1731, and it was illustrated in Curtis’s Botanical Magazine in 1799. It has been a prized conservatory plant in Britain for nearly three centuries.
Ecology: grows on steep, rocky, south-facing slopes on sandstone in well-drained, acidic, sandy soil. The only tree aloe in the fynbos. Despite the fire-prone nature of its habitat, it survives fast-moving fynbos fires — its succulent leaves resist burning and its thick, corky bark insulates the living tissues from heat. Stems that fall to the ground after fire or dassie (rock hyrax) damage readily root if they find sufficient soil — a remarkable vegetative resilience.
Conservation: Least Concern (LC). Distribution restricted but populations stable. CITES Appendix II. Threatened by illegal collection for the international horticultural trade — wild specimens are dug up and exported illegally.
Kumara haemanthifolia (Marloth & A. Berger) Boatwr. & J.C. Manning
Synonyms: Aloe haemanthifolia Marloth & A. Berger.
Common names: haemanthus-leaf aloe.
Description: a stemless or short-stemmed succulent perennial with a strong underground rootstock and robust roots. Rosettes of broad, flat, tongue-shaped, greyish-green leaves with bright red margins — arranged in two opposite rows (distichous), like a miniature, ground-level version of the fan aloe’s leaf fans. The leaves are softer and wider than those of K. plicatilis, and the plant has a soft-bodied, almost defenceless appearance — it lacks the thick bark, the tough leaves and the bitter sap that protect most other alooids from herbivores. This vulnerability reflects its sheltered, inaccessible cliff habitat. The inflorescence is dense, with bright scarlet flowers, reaching about fifty centimetres.
Ecology: a high-altitude cliff specialist — grows on near-vertical, south-facing rock faces and steep slopes on sandstone, at 500 to 1 700 metres, in cool, damp, misty conditions. The mountain peaks it inhabits benefit from orographic mist during the summer south-easterly winds, providing moisture year-round. The species is highly dependent on this specific microclimate — cool, humid, sheltered. Without it, plants simply will not survive.
In cultivation: extremely difficult. Kumara haemanthifolia has never established itself as a garden or container plant and very rarely flowers in cultivation. Like Aloe polyphylla from the Lesotho highlands, it is a species that refuses to thrive away from its native microclimate. It requires cool, humid, misty conditions with excellent drainage — conditions that are nearly impossible to replicate in a lowland garden or greenhouse. Best left to be admired in the wild. Propagation from freshly harvested seed or, rarely, from suckers.
Conservation: Least Concern (LC), but the very restricted range, specific habitat requirements and inaccessibility of populations mean that any threat (climate change, fire regime alteration, collecting) could have disproportionate impact.
Cultivation: the alooid for cool-summer climates
The cultivation advice below applies to Kumara plicatilis — the only species in the genus that is practical for garden and container culture. Kumara haemanthifolia is essentially uncultivable outside specialist alpine conditions.
Light: full sun to bright partial shade. In hot-summer climates (inland Mediterranean, Central Valley California), afternoon shade prevents leaf stress. In cool-summer climates (coastal UK, Pacific Northwest, San Francisco fog belt), full sun is ideal and produces the best form and flowering.
Substrate: well-drained, sandy, slightly acidic. The plant grows naturally on sandstone-derived soils in the fynbos. A gritty, fast-draining mix with 60–70 % mineral component (coarse sand, pumice, perlite) and 30–40 % quality acidic compost mimics the natural substrate. Good drainage is essential — the plant tolerates winter rain if the soil drains freely, but it does not tolerate waterlogging.
Watering: this is the critical distinction from most alooids. Kumara plicatilis is a winter-grower — its natural growing season is the cool, wet Cape winter (May–September in the southern hemisphere, November–March in the northern hemisphere). Water regularly during the cool months; reduce watering in summer, when the plant goes semi-dormant. In summer-rainfall climates, special care must be taken to avoid overwatering in summer — this is the main cause of failure. In winter-rainfall or cool-summer climates (coastal UK, Pacific NW, Mediterranean coast), the natural seasonal pattern works perfectly and the plant is remarkably easy.
Temperature: tolerates brief frost to approximately -4 to -5 °C (23 to 25 °F) in well-drained soil. Hardy in USDA zones 9a–10. In the UK, it is grown as a conservatory plant or outdoors in the mildest coastal gardens (Cornwall, Devon, Channel Islands). In the Pacific Northwest and San Francisco Bay Area, it thrives outdoors year-round. It does not tolerate hot, humid summers — sustained temperatures above 35 °C combined with humidity cause stress. This is why it is the ideal alooid for cool-summer climates and a poor choice for hot, humid regions.
Growth rate: slow. A fan aloe takes decades to develop its full sculptural stature. A well-grown plant may add ten to twenty centimetres of height per year in ideal conditions, but periods of summer dormancy slow overall progress. Patience is essential — but the result is a living sculpture.
Container growing
Kumara plicatilis makes an outstanding container plant — and in most climates outside its narrow native range, this is the most practical way to grow it. A large, deep pot with excellent drainage allows the plant to develop its branching architecture while remaining portable (important in frost-prone climates where winter protection may be needed). The plant flowers while still small — even a young specimen in a pot can produce its spectacular scarlet racemes. Move outdoors in summer (partial shade in hot areas) and into a cool, bright greenhouse or conservatory for winter.
Propagation
From seed: the standard method. Germination is reliable at 15–20 °C (cooler than most alooids — reflecting the cool Cape origin). Seedlings are slow-growing.
From stem cuttings (truncheons): effective for K. plicatilis. Take branch sections in spring, allow the cut surface to callous, plant in well-drained substrate. This method allows establishment of larger specimens more quickly than seed. In habitat, stems that fall to the ground root spontaneously if conditions are favourable.
Pests and diseases
Root rot: the primary killer — caused by overwatering, particularly summer overwatering in summer-rainfall climates. The most common cause of failure for gardeners who treat the fan aloe like a regular aloe.
Mealybugs: aerial and root. Less problematic than in rosette-forming alooids due to the open, fan-like leaf arrangement — there are fewer hiding places.
Rock hyrax (dassie) damage: a concern only in habitat — these agile animals climb to the branch tips and chew through the bark to access the moist inner tissues, causing stems to collapse. In cultivation, this is not a concern — but it illustrates the soft, water-rich nature of the stems.
Hybridisation
The fan aloe has been hybridised with Gonialoe variegata — the resulting intergeneric hybrid, published as Aloe × corderoyi by Berger and attributed to the horticulturalist Justus Corderoy, was cultivated at Kew Gardens and at the famous garden of La Mortola (Hanbury Gardens, Italy). Since the two parent species are now placed in different genera, this hybrid is designated an intergeneric hybrid of the nothogenus × Gonimara. It is a curiosity rather than a commonly available plant.
Conservation
Both species are assessed as Least Concern (LC), but their restricted ranges and fynbos habitat make them potentially vulnerable. Kumara plicatilis is known from only seventeen populations in a small area of the Western Cape — it is threatened primarily by illegal collection for the international horticultural trade. Kumara haemanthifolia is protected by the inaccessibility of its cliff habitat, but any alteration to its specific microclimate (through climate change or altered fire regimes) could have severe consequences. Both species occur in several protected areas (Jonkershoek, Hottentots Holland, Limietberg, Paardenburg Nature Reserves) and are listed under CITES Appendix II.
Web resources
Plants of the World Online (POWO) — Kew Royal Botanic Gardens. Both accepted species. Includes cultivation notes from Kew’s living collections. powo.science.kew.org
PlantZAfrica — South African National Biodiversity Institute (SANBI). Outstanding genus page (Klopper, Smith et al.) and individual species pages for K. plicatilis (Carolus, Voigt, Notten) and K. haemanthifolia (Voigt). Ecology, fire ecology, dassie damage, conservation. pza.sanbi.org
The Haworthia Society (haworthia.org). Covers all alooid genera including Kumara.
Pacific Bulb Society (pacificbulbsociety.org). Cultivation notes from growers in cool-summer Pacific climates.
iNaturalist (inaturalist.org). Citizen-science observations from the Western Cape mountains — valuable for understanding population locations and habitat conditions.
Bibliography
Taxonomy and phylogenetics
Medikus F.K. (1786). Theodora Speciosa. — The original erection of the genus Kumara — the oldest genus name applied to any alooid.
Grace O.M., Klopper R.R., Figueiredo E., Smith G.F. (2013). A revised generic classification for Aloe (Xanthorrhoeaceae subfam. Asphodeloideae). Phytotaxa, 76: 7–14. — Revived Kumara and transferred Aloe plicatilis.
Manning J.C., Boatwright J.S., Daru B.H., Maurin O., Van der Bank M. (2014). A molecular phylogeny and generic classification of Asphodelaceae subfamily Alooideae. Systematic Botany, 39(1): 55–74. — Broadened Kumara to include K. haemanthifolia.
Woudstra Y., Grace O.M., Klopper R.R. et al. (2025). Nuclear phylogenomics reveals strong geographic patterns in the evolutionary history of Aloe and related genera (alooids). Annals of Botany. — Confirms the monophyly of Kumara.
Species descriptions and ecology
Oldenland H.B. (1695). — The first botanical description of the fan aloe, from the Dutch East India Company garden in Cape Town.
Miller P. (1768). The Gardeners Dictionary. 8th edition. — Established the name Aloe plicatilis.
Von Staden L., Helme N.A. (2008). Kumara plicatilis. National Assessment: Red List of South African Plants. — Conservation assessment.
Victor J.E. (2009). Kumara haemanthifolia. National Assessment: Red List of South African Plants. — Conservation assessment.
General references
Carter S., Lavranos J.J., Newton L.E., Walker C.C. (2011). Aloes: The Definitive Guide. Kew Publishing.
Court D. (2000). Succulent Flora of Southern Africa. Revised edition.
Van Wyk B.-E., Smith G.F. (1996). Guide to the Aloes of South Africa. Briza Publications, Pretoria.
Going further
The genus Kumara is the smallest and oldest-named of the alooid genera — two species, both endemic to the fynbos mountains of the Western Cape, both winter-growers, both bearing the unique distichous leaf arrangement that makes them instantly recognisable. Kumara plicatilis — the fan aloe — is a living architectural masterpiece, a plant that has been prized in European collections since 1695 and that reaches its full potential in cool-summer climates where other alooids struggle. Kumara haemanthifolia — the mountain cliff-dweller — is one of the most mysterious and uncultivable alooids in existence, a reminder that some plants are best admired in the wild. Together, they represent a unique evolutionary lineage at the base of the alooid tree — the oldest name, the most distinctive form and a story that reaches back to the very first botanical gardens of the Cape. Our site offers care guides, species profiles and taxonomic references for every alooid genus.