Ensoll, Andrew, and Kate Hughes. “Cultivation and Hardiness Notes for Blechnum Cycadifolium”. Sibbaldia: the International Journal of Botanic Garden Horticulture, no. 5 (October 31, 2007): 87–92. Accessed February 4, 2026. https://journals.rbge.org.uk/rbgesib/article/view/9.