The Australian Cycad Pages point out that "Cycad plants are long-lived and slow-growing, with slow recruitment and population turnover. The fleshy and starch-rich stems are highly susceptible to fungal attack, and almost all species grow in well-drained soils or sites. Habitats range from closed tropical forests to semideserts, the majority in tropical or subtropical climates in regions of predominantly summer rainfall. Cycads often occur on or are restricted to specialised and/or localised sites, such as nutritionally deficient sites, limestone or serpentinite outcrops, beach dune deposits or precipitously steep sites."
One of the U.S. locations where you can enjoy them, is at Myriad Botanical Gardens, Crystal Bridge Tropical Conservatory in Oklahoma City.
|Encephalartos Cycad at Crystal Bridge Tropical Conservatory|
|Cycad cones at the base of the plant|
Mexican Cycad is a popularly grown Cycad.
|Soft, fuzzy new growth of critically endangered Mexican Cycad|
|Sharp needle-like mature fronds of Mexican Cycad|
Arkive explains that cycad reproductive organs, the cones, are borne on separate plants - male cones on one and female on another. On the Mexican Cycad, D. caputoi, only one pale brown cone is produced on each stem.