Oh yeah, great plant @ctrl-alt-nwo and Pyrostegia venusta is a perennial, evergreen vine that comes from tropical and subtropical regions of South and Central America. It is widely spread in open fields, shrublands, edges of forests and coastal areas, and is often planted in gardens. It climbs or creeps at fast rate, with length range of around 12m.
It likes slightly acidic soil but tolerate neutral, slightly alkaline or saline conditions. It grows and flowers best in full sunlight. It doesn't flower well in hot and humid conditions, but it is all covered in bloom for long time when season is dry and temperatures are cooler. If your plants don't produce many flowers, pruning might help. It is also important not to overfeed Pyrostegia. In very fertile and moist soil it will grow rapidly, but you won't see many flowers on it, if any, even during the peak of it's flowering season. It copes well with extreme heat and can survive slight frost. In regions with cold winters it can be grown as a pot plant.
Pyrostegia can be propagated from seeds (flowers are only polinated by coliber birds), by cuttings or layering. In some places it is considered as an invasive plant.
If you have access to the plant at all time, I dont see any reason why you should dry and storage it. I don't have informations that would confirm this, but i think that just like most of herbs Pyrostegia is best to be used fresh whenever possible. Plus, why to make a fuss with drying it, if the teas from it's fresh or dried leaves and flowers taste nearly the same. Of course you might want to gather and dry some flowers to storage for later, as it might not appear for long in your region (in some places it is in bloom for half a year or nearly whole year round). Chinese says that leaves and flowers of Pyrostegia can be sun dried, but I always prefer to dry those parts of herbs in shade, as some bioactive substances are getting damaged by strong sun rays exposure.
http://herbsfromdistantlands.blogspot.com/2017/04/pyrostegia-venusta-flame-flower-golden.html