Stunning architectural form that lends itself to desert/xeriscape themed gardens and as a feature specimen
Loves the heat and works well in a sunny location including micro-climates such as where added radiant heat from a wall might render many plants unsuitable.
In the sub-arid regions of Madagascar (where they are endemic) temperatures can be as high as 40 degrees C, but there is anecdotal evidence they can handle much higher temperatures than this.
And no two grow to maturity looking exactly the same which works really well when they are grouped as feature plants in a garden.
Do well in feature pots and ultimately, although they might stop growing, can handle being root bound better than most.
Totally cool.
100mm pot - trunk height minimum 140mm
200mm pot - trunk height minimum 400mm

Plant Size:
large
Height:
3m
Can grow taller, particularly where competing for light
Width:
2.5m
Habit:
solitary stem that will eventually branch if grown outdoors, less likely inside
Light Requirement
full sun, loves heat
Deciduous in cooler climates in winter
Disease and pest resistance:
good
Coastal Suitability:
Yes
Soil Type:
gritty, free draining, slightly acidic
Cold & Frost Tolerance:
Not cold tolerant, frosts will affect branches causing die-back
Growth Rate:
in ground -moderate
potted - slower
Water Requirement:
water during summer but allow to dry between watering, keep dry in winter
Suitability For container
large pots
Ensure large specimens are in stable pots as trunk can become quite heavy
Spikes:
Absolutely!
Take care where you plant these. Ensure out of reach of young children and inebriated party goers!
Note also, sap is toxic.
Madagascar

Sun grown
Yes