Dioon spinulosum

A popular species and one of the tallest of all cycads, with trunks reaching in excess of 15 m. One of the most trouble-free cycads. It will not only withstand full sun but some frost exposure as well. When planted in sunny locations, the growth rate seems to be more rapid than if grown in a shady position.

Growth: 5 – 16 metres tall

Diameter: 40 cm

Leaf: 1.5 – 2 metres long – light green

Habitat: Occurs in Mexico, where it was once widely distributed, but now localised in the lowlands of the Sierra Madre Oriental mountain range at altitudes of 20 – 300 m. Plants grow in shady ravines and canyons developed on limestone formations and covered with tropical evergreen forest.

Temperature: Tropical, subtropical and perhaps temperate regions. This species has been reported as surviving

A popular medium to very large sized species and one of the tallest of all cycads. One of the most trouble free cycads and prized for its attractive crown. It will withstand full sun but some frost exposure as well. Grows rapidly in full sun or filtered sun

Height	Trunks 5 – 16 metres tall
Diameter	40 cm
Leaf size	1.5 – 2 metres long – light green
Region	Occurs in Mexico in the lowlands of the Sierra Madre Oriental mountain range at altitudes of 20 -300 m.
Best suited climate	Tropical, subtropical and perhaps temperate regions. This species has been reported to survive temperatures down to -5°C

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