When a dragon fruit is not ripe it will be green in color. For example, if the fruit is not packaged properly during transportation, they may roll into each other. Proper time of harvesting is four days after the color of the fruit changes. every person who reads an article on our site (up to $10, per month). Dragon fruit is often said to be bland in its taste. But this is far Fruit Ripe. Health Glows Learn when dragon Missing: roll. I tell you how to know when a white dragon fruit is ripe and how to open up for this by clicking here: http Missing: roll.