Crinum graminicola produces an ample umbel of pink-banded tepals. There may be from eight to thirty flowers in one inflorescence. The thick peduncle is nearly erect when flowering, reclining when the bunch of oblong to globose, reddish pink fruits exert their weight.
The plant produces four to eight broad, strap-shaped leaves in a spreading basal rosette. The leaves are channelled, bright to dark green in colour. Leaf dimensions are 40 cm to 80 cm long and 8 cm to 15 cm wide.
The bulb is globular, up to 16 cm in diameter. It is covered in multiple layers of a cartilaginous tunic that form a noticeable neck at the top.
At the base of many bulb species is a plate-like structure from which the roots grow, whilst modified leaves are tightly stacked above it to form the bulb, like scales or broad membranes that surround the centre. Sometimes a bulb has a hard tunic or outer cover of sturdy fibres that protect the softer inner food storage parts (Duncan, et al, 2016; iSpot).