Calla lilies (Zantedeschia sp.) are native to South Africa and are considered tender perennials, since they won’t tolerate freezing weather. They’re only hardy in warmer areas in Zones 8-10. They grow from bulb-like rhizomes, and big, firm rhizomes will give you big plants and lots of flowers.
A table displaying which months are best to sow, plant and harvest. Calla lily, also known as arum lily, is not a true lily. It belongs to the genus Zantedeschia which originates from South Africa.
Normal varieties are not hardy
The only exception is the ‘Crowsborough’ variety
Its tubers can withstand sub-zero temperatures down to -20 °C.
Do calla lilies grow in cold climates?
Winter Care for Calla Lily Plants in Colder Climates If you live in zones 7 or lower, calla lilies will not survive the winter cold and so your winter care for calla lily plants will be different than for warm climates. Your calla lily care in winter will consist of digging the rhizome of the plants.
As calla lilies continue to grow in popularity in the garden, it is surely only a matter of time before new frost-tolerant calla varieties are bred. Summary: are calla lilies hardy? Its tubers can withstand sub-zero temperatures down to -20 °C Tip: Pay attention to your calla lily to make sure it is a genuine Zantedeschia aethiopica.
SHADE AND SUN: In warm climates, calla lilies grow well in full sun or partial shade. In cooler areas they grow best in full sun. ZONE: Calla lilies are winter hardy in zones 8-10. In colder areas they can either be grown as annuals or can be dug up in the fall and stored indoors for replanting the next spring.
Do calla lilies come back every year?
It depends on how you treat your plant and where you put it for the winter. Keeping callas year round is possible, but how you treat your plant to get blooms again next year will depend on your hardiness zone. You can rely on calla lily hardiness through zone 8 or maybe 7 at a stretch.
How do you care for a calla lily plant?
Like most plants, calla lilies should be grown in well-drained soil. When the rhizomes are first planted, it’s important not to overwater them. Once the plants have a few leaves, you can begin watering them as needed. In warm areas, calla lilies grow well in full sun or partial shade.
Why is my calla lily not blooming?
It may be that your calla lilies are not getting enough dormancy and storing them will provide that for them. If you live in zones 7 or lower, calla lilies will not survive the winter cold and so your winter care for calla lily plants will be different than for warm climates.
Every few years, divide the plant into three or four sections to store for the winter. Next spring you will have more, healthier plants. Calla lilies are perennials, not annuals, and with just a little extra effort you can enjoy your flower year after year.