Coral Vines

I wanted to buy a Coral Vine flower or seedlings but unfortunately I was not able to get one during my visit to Eden Nature Park because there's no available seedlings already, I have heard that a single seedling cost a thousand of pesos. A friend of mine, who is also a gardener by profession told me that Coral Vine doesn't bear flower on hot weather, that is why you can only see coral vine flowers when your up in the mountain or when you reach 2000 feet above sea level. I really love to have one but since coral vine is not good on hot wheather, I just decided not to have one and just visit Eden Nature Park during summer to witnessed the beauty of coral vines when they massively produce flowers.