Conostephium hortiorum is a species of flowering plant in the family Ericaceae and is endemic to the south-west of Western Australia.

Flowering mainly occurs from July to September and the fruit is oval and about 7.5 mm (0.30 in) long.

[2][3] Conostephium hortiorum was first formally described in 2013 by Michael Hislop in the journal Nuytsia from specimens collected by Fred and Jean Hort in Wandoo National Park.

[2] Conostephium hortiorum in low woodland only sandy soil on the eastern part of the Darling Range, mainly between the Great Southern and Brookton Highways in the Jarrah forest biogeographic region of south-western Western Australia.

[2][3] This conostephium is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.