This grower is sure of this plant identification.
White arum lily, Lily-of-the-Nile, Pig lily, Trumpet lily, Arum lily
Zantedeschia aethiopica (White arum lily). These are deciduous perennials which produce many large broad leaves with dark green lance-shaped foliage. The flowers are large and will bloom in the spring, which are creamy white to a deep orange or pink; they are very long-lasting.
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