It has a single, hairy leaf and up to three pale pink, sweetly scented flowers with a dark pinkish-red labellum.Caladenia gardneri is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, 80–200 mm (3–8 in) long and 4–15 mm (0.2–0.6 in) wide.

The flowers are sweetly scented and white, flushed with pink while the lateral sepals have narrow, club-like, glandular tips.

[2][3][4] Caladenia gardneri was first described in 2001 by Stephen Hopper and Andrew Phillip Brown from a specimen collected near Pemberton and the description was published in Nuytsia.

[3] Cherry spider orchid occurs between Yallingup and William Bay in the Jarrah Forest and Warren biogeographic regions where it grows in coastal woodland and heath.

[2][3][4][5] Caladenia gardneri is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.