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Cactus SucculentConservatory Greenhouse

Aloe castanea

A succulent, evergreen perennial forming a rosette of thick, fleshy, grey-green leaves, toothed at the margins. Mature plants may produce a flower stalk to 1m long, of densely packed brown flowers

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Ultimate height

1–1.5 metres

Time to ultimate height

5–10 years

Ultimate spread

1–1.5 metres

Loam

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Drought resistance

Yes

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Asphodelaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Clump forming
Potentially harmful: Human/Pets (dogs, cats, rabbits): Harmful if eaten. Wear gloves and other protective equipment when handling For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Aloe can be mat-forming or shrubby evergreen perennials, with rosettes of fleshy leaves and small tubular flowers in racemes or panicles
Name status: Correct

How to grow

Cultivation

Grow indoors in a container of peat-free, cacti potting compost, or peat-free, loam-based potting compost with added horticultural grit. Water moderately when in growth, very sparingly when dormant in winter. Apply a general liquid fertiliser monthly from May to August. Can be placed outdoors in summer, see aloe cultivation for further advice

Propagation

Propagate by seed, or by stem or leaf cuttings

Suggested planting locations and garden types

Architectural
City and courtyard gardens
Coastal
Mediterranean climate plants
Patio and container plants
Sub-tropical
Bedding
Conservatory and greenhouse

Pruning

No pruning required

Pests

May be susceptible to scale insects and mealybugs

Diseases

Generally disease-free

Get involved

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