The Candelabra Aloe (Aloe arborescens) is a large, multi-stemmed succulent shrub in the family Asphodelaceae, native to the southeastern regions of the African continent. It ranks among the most widely cultivated and recognizable aloes in the world, valued for its dramatic architectural form, showy winter floral displays, and remarkable resilience across a broad range of climates and soil conditions. The species epithet arborescens derives from the Latin word meaning tree-like, a fitting descriptor for a plant that develops tall, woody, branching stems — a characteristic that sets it apart from the many smaller, stemless or shortly stemmed aloe species.
• Attains a mature height of 2–3 metres, with exceptional specimens occasionally reaching 4–5 metres, and a comparable spread of 2–3 metres across
• Each branch tip bears a rosette of 20–30 fleshy, recurved, sword-shaped leaves up to 60 cm long and 5–7 cm wide, armed with prominent sharp marginal teeth
• The genus Aloe comprises approximately 600 recognised species distributed predominantly across sub-Saharan Africa, Madagascar, and the Arabian Peninsula
• The specific epithet arborescens means tree-like, directly referencing the plant's development of tall, erect, woody, dichotomously branching stems
• Distinguished by its winter flowering season — producing cylindrical racemes 30–50 cm tall densely packed with narrowly tubular scarlet to orange flowers
• Occurs across a broad elevational range from near sea level to approximately 1,800 metres
• Inhabits rocky hillsides, exposed outcrops, dry river valleys, coastal scrub, thicket vegetation, and bushveld margins
• Evolutionary history closely tied to the geological and climatic history of southern Africa, with diversification during the Pliocene and Pleistocene epochs
• Among the first aloes introduced to European botanical gardens via the Cape of Good Hope trade route in the 17th and 18th centuries
• Described by Francis Masson based on living material sent from the Cape to Kew in the 1770s
• Now widely naturalised in the Mediterranean basin, California, Hawaii, Australia, and parts of South America
• Fibrous, moderately shallow root system spreading laterally through the upper soil profile
• Rapid uptake of surface moisture following rain events; roots form mycorrhizal associations
Stems & Habit:
• Erect, densely branched, multi-stemmed succulent shrub with candelabra-like growth form
• 5–15 or more erect to spreading stems, each 30–80 mm in diameter
• Mature specimens 2–3 m tall, forming large rounded shrubs 2–4 m in diameter
• Stems clothed in persistent dried leaf bases
Leaves:
• Dense terminal rosettes of 20–30 leaves; broadly lanceolate to sword-shaped, strongly recurved, 40–60 cm long and 5–7 cm wide
• Greyish-green to bluish-green with regular sharp deltoid marginal teeth 2–4 mm long
• Firm, fleshy, succulent with thick waxy cuticle; inner parenchyma stores water
Flowers:
• Unbranched erect scape 60–90 cm tall bearing dense cylindrical raceme 20–50 cm long
• Individual flowers narrowly tubular, 30–40 mm long, scarlet red maturing to warm orange or orange-yellow
• Flowering May–August (Southern Hemisphere); pollinated by sunbirds (Nectarinia spp.)
Fruit & Seeds:
• Oblong to ellipsoid loculicidal capsule 15–20 mm long splitting along three valves
• Seeds roughly triangular, 5–7 mm, dark brown to black with papery wings for wind dispersal
• Full sun to light partial shade; minimum 6 hours direct sunlight daily for compact growth and reliable flowering
• Some afternoon shade beneficial in intensely hot desert climates
Soil:
• Adaptable to sandy, loamy, gravelly, and rocky substrates provided drainage is excellent
• Prefers pH 6.0–8.0; avoid heavy clay and poorly drained sites
• Container mix: one part potting soil, one part coarse sand, one part perlite or pumice
Watering:
• Highly drought tolerant once established; deep watering every 10–14 days during warm weather
• Reduce significantly or withhold during winter dormant period
• Overwatering is the most common and damaging error
Temperature:
• USDA Zones 9–11; tolerates brief exposure to -2°C to -4°C
• Optimal growth at 15–30°C
Propagation:
• Basal offsets separated with clean knife, callused 2–3 days, planted in well-draining medium
• Stem cuttings 10–20 cm root within 4–6 weeks
• Seed sowing in spring in sterile mix at 20–25°C; germination in 2–4 weeks
Common Problems:
• Root and stem rot from overwatering and poor drainage
• Mealybugs and scale insects in leaf axils
• Aloe rust producing dark pustules on leaves in humid conditions
• Snails and slugs feeding on tender new growth
Kommentare (0)
Noch keine Kommentare. Schreiben Sie den ersten!
