Zantedeschia (Calla Lily)

The Zantedeschia, commonly known as the Calla Lily, or Arum lily are widely known for the white Atheopica. With its sleek, trumpet-shaped spathes (flowers) and lush, arrow-shaped foliage, this plant exudes sophistication and grace. Native to South Africa, Calla Lilies are surprisingly versatile, thriving in borders, containers, or as cut flowers in floral arrangements. 

How to Grow Calla Lilies

Calla Lilies are relatively easy to cultivate, provided they are given the right conditions. 

• Plant the rhizomes in spring, after the risk of frost has passed, in well-draining soil enriched with organic matter. 

• Choose a sunny or partially shaded spot, as Calla Lilies enjoy bright light but can tolerate some shade. 

• Water them regularly during the growing season, keeping the soil moist but not waterlogged. 

Once established, they will reward you with a stunning display of blooms from late spring to early autumn.

Stephen’s Calla Bulbs top picks

Stephen Teeuw is the 3rd generation of his family to work in the flower bulb industry; he grows hundreds of varieties of new bulbs each year. At Peter Nyssen, we offer a wide variety of summer flowering bulbs to satisfy the needs of any gardening enthusiast. Here are Stephen’s top picks:

Aetheopica : Bigger leaves and large flowers of pure white, these bulbs will grow in shallow water and cope with partial shade. I think I’ve always been fascinated by these flowers since I was young!

Odessa : A small and deep maroon spathe nestles in thinner leaves. A perfect house plant for the summer, or try planting in pots around a seating area. 

Purple Beat : For added interest try the bi-coloured Purple beat, a deep purple centre fading to white. A good mid size calla for interest in borders.

Overwintering Calla Lilies

In the UK, Calla Lilies are not frost-hardy, so they require special care during the winter months. After the foliage has died back in autumn, carefully lift the rhizomes from the ground. Allow them to dry for a few days, then store them in a cool, dry place in a box filled with peat-free compost or sand. Replant them the following spring for another season of beauty.

Your Top 5 Questions About Calla Lilies

1. Are Calla Lilies poisonous?

Yes, Calla Lilies are toxic to humans and pets if ingested. Handle them with care and keep them out of reach of children and animals.

2. Can Calla Lilies grow indoors?

Absolutely! Calla Lilies make excellent houseplants. Place them in a bright spot, water regularly, and ensure good drainage to keep them thriving indoors.

3. Why are my Calla Lily leaves turning yellow?

Yellowing leaves can be a sign of overwatering, poor drainage, or the plant entering its dormant phase. Adjust watering habits and check soil conditions to address the issue.

4. How long do Calla Lilies bloom?

With proper care, Calla Lilies can bloom for several weeks, typically from late spring to early autumn. Regular deadheading can encourage prolonged flowering. Numerous flowers will appear over the flowering season for a staggered flowering period.

5. Can Calla Lilies grow in water?

The white Zantedeschia Aethiopca can grow in shallow water, making them a popular choice for water gardens or pond edges. The smaller tender bulbs will not like to be waterlogged. 

Zantedeschia, or Calla Lilies, are a true gem in the gardening world. Their elegant blooms and adaptability make them a favourite among gardeners and florists alike. With a little care and attention, these stunning plants will bring a touch of exotic beauty to your garden or home year after year.

Need more help?

Please contact us if you have any questions. We’re here to assist with recommendations for stunning colour combinations, help you determine the right number of bulbs for your space, and address any landscape or trade inquiries you might have.