Angel trumpets sometimes are chomped on by various caterpillars or beetles. If you don't see any pests out during the day feeding on the foliage, try going out at night with a flashlight as some pests are nocturnal. Once you find out which type of pest it is we can then recommend an effective low, toxicity control product. There are general purpose insecticides that will kill a number of different pest species but these tend to be more toxic and may have secondary undesirable environmental effects.
Angel trumpets bloom primarily in late summer and fall, although plants overwintered in a greenhouse may also have a spring bloom period. Keep your plant well watered as they are prone to drought stress, provide morning sun and afternoon shade and fertilize moderately through the growing season. Your angel trumpet should be healthy and blooming up a storm later in the year.
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