Species of the genus Hyobanche are found in sandy or rocky soils. Hyobanche fulleri attaches itself to roots of host plants using special organs called haustoria and depends entirely on host plants for water, mineral nutrients and photosynthesis products. According to Wolfe (2013), it is difficult to determine host species based on the proximity of other plants because the rhizome system of the parasite can be quite extensive. Records indicate that it parasitises Chrysanthemoides monilifera, but recent observations show that it also uses Eugenia capensis subsp. capensis as a host plant. No pollinator observations have been noted in literature and no pollinators were observed during a recent site visit to a H. fulleri population by the KwaZulu-Natal CREW (Custodians of Rare and Endangered Wildflowers) team.