Answer: Leaf curling can be caused by herbicide damage, insect damage, tuber damage or overly wet soils. Be careful not to use weed killers near the plants; check the plants carefully for insect pests and treat if necessary; make sure the soil drains well and be sure to water deeply but infrequently. You may want to dig one of the plants up and inspect the tuber. If it has rotten portions, or if it was damaged by gophers or moles, it won't have the energy reserves to support the leaves of the plant. Hope this information helps you determine the cause of the floppy elephant's ears!
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