Epiblema grandiflorum is a terrestrial, perennial, deciduous, sympodial herb with a few inconspicuous, fine roots and an oval-shaped tuber lacking a protective sheath.

The labellum is similar in size, shape and colour to the petals and has a callus consisting of a swelling with ribbon-like or club-shaped appendages.

Flowering occurs from late November to January and is followed by the fruit which is a non-fleshy, glabrous, dehiscent capsule containing a large number of seeds.

[6]: 338 Babe-in-a-cradle grows in wet, peaty swamps, often initially underwater but by the time the flowers appear, the water has usually receded.

[7] Epiblema grandiflorum is classified as "Not Threatened" by the Government of Western Australia Department of Parks and Wildlife.