The large calla lily (Zantedeschia aethiopica) is a plant that polarizes opinions. Some gardeners love it, while others can't abide its funereal associations. Named for Italian botanist Giovanni Zantedeschi (1773-1846), this arum family (Araceae) genus comprises 6 species of rhizome-rooted perennials from southern Africa. They have large, elongated, upward-facing, heart-shaped leaves that taper to long drip-tips and are sometimes speckled with translucent spots. The flower spathe is funnel-shaped and also tapers to a drip-tip. The spikelike spadix may be enclosed within the spathe or protrude slightly. Although the white calla is the best known, modern hybrids cover a wide color range. Both the leaves and the flowers are supported by strong stalks.
CULTIVATION
Cultivated Zantedeschia species may withstand moderate frosts. They lose their leaves in cold winters but may retain some in milder conditions. Some prefer damp, almost boggy conditions but most will grow in full or half sun in any garden soil that does not dry out. Propagate by division, or from basal offsets or seed.
Top Tip
These wonderful house plants will perform well if placed near a window and given some protection against the midday sun. They are also superb in cut-flower arrangements.
CULTIVATION
Cultivated Zantedeschia species may withstand moderate frosts. They lose their leaves in cold winters but may retain some in milder conditions. Some prefer damp, almost boggy conditions but most will grow in full or half sun in any garden soil that does not dry out. Propagate by division, or from basal offsets or seed.
Top Tip
These wonderful house plants will perform well if placed near a window and given some protection against the midday sun. They are also superb in cut-flower arrangements.
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