How long does it take a granadilla to ripen on the vine?

A granadilla typically takes about 70 to 90 days to ripen on the vine after flowering. The exact time can vary based on environmental conditions, such as temperature and humidity. Once fully ripe, the fruit's skin turns a vibrant orange to yellow color, and it will feel slightly soft to the touch. Harvesting at the right time ensures optimal flavor and sweetness.