When I was in Chiang Mai in Jan 09, I saw these beautiful flowering climbers, so I bought some and planted some in the Butterfly Garden enclosure in mid 09.
For months, this plant did not flower but eventually I saw a cluster of the floral buds which were captured on the two top photos on 17 Feb 10.
Finally on 25 Feb 10, I saw an opened red flower as shown on the two bottom photos.