Dioon spinulosum

Dioon spinulosum prefers well-drained soil with regular water. It will grow in soils containing few nutrients, in soils rich in limestone, and on slopes. It is hardy to USDA Zones 9B – 11.

Dioon spinulosum, giant dioon, or gum palm, is a cycad endemic to limestone cliffs and rocky hillsides in the tropical rainforests of Veracruz and Oaxaca, Mexico. It is one of the tallest cycads in the world, growing to 12m in height. The tree is found at low elevations to 300 m above sea level. Dioon spinulosum prefers well-drained soil with regular water. It will grow in soils containing few nutrients, in soils rich in limestone, and on slopes. More

Dioon spinulosum Zamiaceae aangeplant in Hotel tuin Santiago del Tuztla Dioon spinulosum Zamiaceae Anders with Dioon spinulosum Zamiaceae Offshoot by Dioon spinulosum Zamiaceae Santiago del Tuztla Santiago del Tuztla Terminalia catappa Combretaceae Olmec head Odontonema cf. More

Dioon spinulosum has an exceptional amount of wood, in some specimens up to 10 centimetres wide. This may constitute evidence of the primitive nature of the genus, because seed ferns also... More