The Candelabra Aloe
Found in old gardens across Australia, Aloe arborescens was originally used because it was one of the best ornamental aloe species and also very drought tolerant.
A flowering succulent with attractive orange to red flowers, it is known in its native South Africa as the Krantz Aloe.
Very popular for those with ‘healing gardens’ and it has made its way to China where it is used for medicinal purposes.
One of the standout features of Aloe arborescens is its spectacular floral display. In cooler months—typically winter into early spring—this aloe produces tall, showy flower spikes that rise above the foliage. The flowers are usually vibrant orange to red, tubular in shape, and attract bees, birds, and beneficial insects to the garden. Multiple flower spikes may appear on mature plants, making it a reliable source of colour during the colder months.
Today with many new hybrids available Aloe arborescens is not as widely used for its ornamental characteristics, it is still available for sale and we believe it makes a good garden plant.
How To Grow Aloe arborescens – Basic Care
This is a relatively easy plant to grow, given good drainage and a sunny position.
In its natural environment it grows in fairly poor soils on rocky outcrops. As it grows it will form a clump, hard spiny leaves make it unattractive to animals. Over time Aloe arborescens can reach 3m in height.
Sun/Light Requirements
This aloe thrives in full sun and needs a bright, sunny position to perform at its best. It can tolerate light shade, especially in hot inland climates, but flowering and growth are best when it receives at least 6 hours of direct sunlight daily. In cooler climates, it may benefit from a protected, north-facing position to maximise sun exposure.
Soil
In its natural habitat, Aloe arborescens grows on rocky outcrops in nutrient-poor soils. In the garden, the key requirement is excellent drainage. Ideal soils are sandy or gravelly and slightly acidic to neutral. Avoid heavy clay or water-retentive soils, as these can lead to root rot.
Watering
As a drought-tolerant succulent, watering needs are minimal:
- Water deeply but infrequently.
- Allow the soil to dry out completely between waterings.
- Overwatering is the most common cause of failure—less is more.
- During winter, reduce watering significantly as the plant goes into a semi-dormant state.
Fertiliser
Fertilising is optional, but can support healthier growth and more vibrant flowering:
- Use a low-nitrogen, cactus or succulent fertiliser once in spring and again in mid-summer.
- Avoid high-nitrogen fertilisers as they can promote weak, leggy growth.
- Organic options like compost tea or seaweed extract can be applied sparingly for a more natural approach.
Medicinal Use
Said to have a number of medicinal benefits, most are undocumented, however studies into the wound healing properties do seem to be positive.
Propagation
Easy from stem cuttings.
- A small stem is removed from a larger clump.
- Allowed to heal for 3 – 4 days until the cut callouses over a little.
- Plant in a well drained soil, or a sand based propagating mix.
- Cuttings do not require constant watering.
- Allow the sand or soil to dry well between waterings to prevent rot.
From Seeds
Use a well-draining propagation mix.
- A cold frame or protected area with light and warmth improves germination rates.
- Keep the medium lightly moist, not wet, until germination occurs.
Seed can be sown in spring.