Amaryllis
Ecology

The leaves are produced in the autumn or early spring in warm climates depending on the onset of rain and eventually die down by late spring. The bulb is then dormant until late summer. The plant is not frost-tolerant, nor does it do well in tropical environments since they require a dry resting period between leaf growth and flower spike production.

One or two leafless stems arise from the bulb in the dry ground in late summer (March in its native habitat and August in USDA zone 7).

The plant has a symbiotic relationship with carpenter bees. It is also visited by noctuid moths at night. The relative importance of these insects as pollinators has not yet been established; however, carpenter bees are thought to be the main pollinators of amaryllis on the Cape Peninsula. The plant's main parasite is the lily borer Brithys crini and/or Diaphone eumela.
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