Birds of paradise

Around the front of our organic garden, we have a raised bed (that used to be a long fish pond I think), which has some Calathea lutea planted, and some Heliconia. I'm not sure exactly how to identify them, but I'm pretty sure they are Heliconia psittacorum (usually called 'birds of paradise' here in Malaysia).

The Heliconia are invasive, so it's good they're restrained in the bed. At first I liked the way that they were mixing with the Calathea, but I'm beginning to wonder if they are restricting the growth of the Calathea...

Unfortunately, they also have to compete for space with the dogs, who like to use the bed for barking at dogs, cats and assorted passers-by.

I like the birds of paradise: it grows very easily, it can act as a screen of sorts, it flowers constantly with flowers that have different colours


and some are just orange. I wonder how many other colours there are?