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Giant Dioon

Dioon Spinulosum

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Overview

The Giant Dioon (Dioon spinulosum), a slow-growing cycad, is a focal point for xeriscapes. Mature size reaches up to 15 feet tall, with feathery fronds extending 6 feet. Preferring full sun to partial shade, it thrives in USDA zones 9-11. Once established, it's drought-tolerant, requiring minimal water. Its textured, blue-green leaves add architectural interest. Plant with caution, as its leaves are sharp and it's toxic if ingested.

Sun HalfWater MediumZones 9–11Climate Subtropical
Giant Dioon (Dioon Spinulosum) — The Giant Dioon (Dioon spinulosum), a slow-growing cycad, is a focal point for xeriscapes

Culture

Sun
Half
Water
Medium
USDA zones
9–11

Shape & size

Mature height
4–12 Ft.
Mature width
4–12 Ft.

Classification

Family
Zamiaceae
Climate
Subtropical

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Photos (79)

Giant Dioon (Dioon Spinulosum) — an impressive species of cycad native to Eastern Mexico; mature size reaches up to 15 feet tall, with feathery, image 73
Giant Dioon (Dioon Spinulosum) — Its textured, blue-green leaves add architectural interest; palm-like appearance and can reach a height of 12 to, image 71
Giant Dioon (Dioon Spinulosum) — These leaves form a rosette pattern creating a symmetrical and architectural silhouette; palm for half, image 79
Giant Dioon (Dioon Spinulosum) — blue-green leaves that are highly textured with sharp leaflets; this cycad prefers full to partial sun exposure, image 78
Giant Dioon (Dioon Spinulosum) — This ornamental perennial is renowned for its robust; it has excellent drought tolerance once established, image 75
Giant Dioon (Dioon Spinulosum) — palm-like appearance and can reach a height of 12 to 15 feet with a similar canopy spread; the Giant Dioon (Dioon, image 76
Giant Dioon (Dioon Spinulosum) — From this trunk extends an array of stiff; is an ancient plant type that provides a distinctive prehistoric, image 77

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