Zantedeschia Mixed

Classically elegant Zantedeschia, commonly known as Calla lilies, are natives of Southern Africa. In recent decades New Zealand has been at the forefront of breeding many new and exciting colours. The bulbs are hardy and can be grown outdoors in most parts of the country.

Planting
Zantedeschia like warm conditions to grow in so plant after danger of frost is past. It is best to wait until the tubers have shoots starting to develop before planting. Plant the tubers 5–10 cm deep in well drained potting mixture or soil, when soil temperatures have risen in late spring. Don’t overwater the plants. At the time of planting, apply a slow-release fertilizer. Excessive nitrogen will encourage a bounty of leaves and long stems, squelching bud production. In a fertile soil, no further food is needed.

After Flowering
Zantedeschia flowers can be removed as they begin to fade from the plant. Deadheading each stem prevents the production of seed, as well as encouraging bloom. Each spent flower stem should be removed carefully all the way back to the base of the plant. Dead or yellowing foliage can also be pruned in this manner, helping to maintain a healthy and tidy appearance within garden beds.

Common Problems
While care for Zantedeschia is relatively simple, there are some common problems that gardeners need to be aware of: rot, powdery mildew, and various kinds of wilt may be the direct result of excess moisture. Slugs may also target the plants.