Zantedeschia rehmannii, the pink arum lily, pink calla, or red calla lily, is a herbaceous ornamental plant in the family Araceae.

[4] It (or its cultivar(s)) is a recipient of the Royal Horticultural Society's Award of Garden Merit.

[citation needed] The spathe on this summer flowering Zantedeschia is mauve to rose-purple with paler margins, enclosing a yellow spadix.

Its green unmarked leaves are semi erect and not arrow shaped as in other species.

The plant is slightly frost hardy, preferring a well composted soil in an area protected from strong winds and in part shade.