For the most part, calibrachoa is easy to grow with few major pitfalls. However, there are a few things gardeners should keep in mind. First, overwatering your plants can cause root rot. Wilting after watering may be a sign of this. If you grow calibrachoa in a container, it is harder to overwater since containers with good drainage dry out more easily. Calibrachoa may also become stressed during intense summer heat. Stressed plants are more susceptible to frequent pests like spider mites and aphids. Moving the plant to a shadier location may help it avoid heat stress.
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