Is my calla lily hardy?

Robmarston

hi, I bought a calla lily from a supermarket this week. It has slightly variegated leaves and yellow flowers fading to an orange edge. Can I plant it in the garden safely or should I pot it and overwinter it ina cold greenhouse? I’ve looked online but found conflicting advice. Thanks. 

Ladybird4

Hi Rob. The only reliably hardy calla is Zantedeschia aethiopica - the big white one. The coloured callas need overwinter protection.