The term âhalf and halfâ shows up very frequently in cooking and baking recipes in the US, but it is not particularly well known outside of the US (or the term refers to something completely different). When it appears in a recipe, it sometimes generates a little confusion as to what it is.
Note that the purple passion vine (Gynura aurantiaca) is unrelated to the Passiflora species and is considered nontoxic to dogs, according to the American Society for the Prevention of Cruelty to Animals. Purple passion grows in USDA zones 10 through 12. 1  Dig This.
Passion Flower (Passiflora Caerulea) - What an exotic, lovely plant for your garden! Grown from Passion Flower seeds, this vining perennial can grow to 180 inches or more, and it produces large, 4 inch pale blue blossoms. Passion Flower fruit are egg-shaped, orange and edible but not very noteworthy.