Wagneriana is one of those tall winter flowerers (2-3m) from central America and southern Mexico. It is particularly pretty but is also one of the more frost tender of the winter bloomers. In Mexico the colour varies quite a bit, but in Australia we originally had just the pale pink and later a deep pink. The deep pink is a much slower and shorter grower. Wagneriana will flower even when small so it could be cut to the ground at Xmastime if you want a shorter plant.
Older stems of wagneriana become hollow which seems to make propagation more difficult. It is not as easy to strike in hot weather over 30C. I haven’t known it to set seed but it will do in the sub tropical regions.
There is an Australian variety called ‘Pink Icicles’ which is more a sugar pink colour and very pretty.
‘Pink Icicles’ is listed on its own.