Calla Lilies in Cold Climate

I planted Calla Lilies outdoors in March, but they have not shown any growth yet, unlike my Gladiolus which are popping up. What should I do?

Calla Lilies are typically grown in a greenhouse due to the colder climate of Ireland. While the white Arum Lily, also known as the Easter Lily and related to Calla Lilies, can be grown outdoors. Calla Lilies require more heat and may struggle to emerge from the ground when it warms up. If they fail to emerge, consider lifting and re-potting them for indoor growing.