Ants themselves aren’t necessarily a problem unless indoors. But outdoors they often indicate the presence of other insects; aphids, scale, or mealybugs that are “farmed” by the ants for the other insects “honeydew” (excreta). Those insects such as scale, mealybugs or aphids are all sucking insects that may damage your plant, so look for them on the undersides of leaves. Ants harvest the sucking insects ecreta called honeydew and also drink nectar from flowers, which doesn’t hurt the plant. Indoors and outdoors there are safe remedies available at your local garden center. Capture a few and show them to your local garden center.Ideally use a bait that ants will take back to their nest so that the entire colony can be killed.