Which cycad species are grown as ornamental plants?

Cycads are popular as ornamental plants due to their striking, palmlike appearance and slow growth, making them well-suited for conservatories, gardens, and as houseplants.123

Several species are commonly cultivated for these purposes:

• Sago palm (Cycas revoluta): Perhaps the most popular cycad, it is widely grown as both a houseplant and an outdoor ornamental in warmer climates.12
• Cardboard palm (Zamia furfuracea): A notable species within the Zamia genus frequently used as an ornamental.24
• Giant dioon (Dioon spinulosum): Another common ornamental species.2

While these plants are highly valued for their aesthetic appeal, it is important to note that their popularity has led to significant overharvesting from the wild. Consequently, many species are now endangered or critically endangered. Ethical gardening practices require that consumers ensure their plants are sourced from reputable, legal nurseries rather than wild-collected specimens, as most cycads are protected by international conservation laws such as CITES.24