Agave montana

RHS Plant Profile

mountain agave

RHS

Cactus Succulent

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A rosette-forming, evergreen, perennial succulent to about 1.5m. The leaves are light greyish-green, edged and tipped with reddish spines. Plant have not been in cultivation long enough to assess flowering, but in the wild it produces huge, club-shaped inflorescences made up of tightly clustered yellow flowers on short branches supported by a scaly, 5m high trunk

Position

Full sun

Soil Types

Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 10–20 years
Max Spread: 1-1.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Sand

Moisture: Well–drained
pH: Acid

Position

Full sun

Aspect: West–facing or South–facing
Exposure: Sheltered
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): H4
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asparagaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Skin irritant. Wear gloves and other protective equipment when handling. Pets (dogs, cats): harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Agave can be perennial or monocarpic succulents, forming rosettes of usually rigid, fleshy, spiny-edged leaves, with funnel-shaped flowers in racemes or panicles often much taller than the rosettes
Name Status: Correct
Plant Range: Mexico

How to Grow

Cultivation

Grow under glass in cactus compost in full light. Water freely in summer, giving a low-nitrogen feed three or four times. Water less in autumn and keep dry in winter. Hardier than most agaves, and may survive outdoors in a warm position in very well-drained, slightly acid soil in full sun. See hardy cacti and succulent cultivation for further information

Propagation

Propagate by seed. Dies after flowering and does not produce offsets

Suggested planting locations and garden types

Gravel garden
Patio and container plants
Architectural
City and courtyard gardens
Sub-tropical

Pruning

No pruning required

Pests

May be susceptible to scale insects

Diseases

Generally disease-free