This grower is sure of this plant identification.
White arum lily, Arum lily
Zantedeschia aethiopica ‘Crowborough’ (White arum lily). Spathes of white flowers are borne in early summer, with large, wavy edged, dark green, arrow-shaped leaves.
They are frost-tender to marginally frost-hardy species they are intolerant of dry conditions. They will prefer well-drained soils in full sun or partial-shade. Give them regular fertilizing and moist soil for the best performance.
Cutting bed, border, ornamental, container, bog, aquatic
Italics = data drawn from parent genus or speciesView Full Plant Finder Record