"Caapi plants are quite hardy...about the hardiest that I have in my greenhouse. I've had them exposed to temps near freezing with no damage at all and I always have them finding their way above the shadecloth in my greenhouse where temps can be 160 degrees!!!! When I lost power last fall and had no cooling for a 100 deg. day...the vines above the shadecloth did get damaged, but the temp at head level reached 175 before it cooked my thermometer so it likely got near boiling above the shad ...(more)