When Time is best to pick elderberries?

Elderberries are best picked when they are fully ripe, typically in late summer to early fall, depending on the region. Ripe elderberries are dark purple or black and should easily come off the cluster with a gentle tug. It's important to harvest them after the risk of frost has passed, as frost can damage the berries. Always ensure the berries are fully ripe, as unripe elderberries can be toxic.