1, the scope is different. Dragon fruit is the collective name of all red dragon fruit, but also includes white heart dragon fruit, including red hydrangea varieties, red hydrangea is just one of the varieties of dragon fruit;

2, the shape is different. The shape of the red hydrangea is nearly round, the outer skin color is also more red, more glossy, while the color of dragon fruit is not as shiny as the red hydrangea, but also not as round as it;

3, the taste is different. Red hydrangea eating taste is sweeter, sweetness, other dragon fruit sugar content are generally low, that is, the sweetness is not as good as the red hydrangea;

4, the growing environment. Dragon fruit for the tropical, subtropical fruit, in a warm, humid, well-lit environment grows rapidly.