Very pretty! I've seen an acre lot completely covered with these parrotsbeak heliconia. Much better than the ferns, grasses, and weeds in the other empty lots!

I have a H.rostrata (one of the biggest) and don't find it rampant at all. Maybe because it is at the back of a very dry border and has a lot of competition. The only problem with it is, unlike the smaller parrotsbeak ones like yours with upright flowers, it does tend to flop.

There's several patches of them that need constant work to keep confined. Not so bad when they get into lawns, they're just mowed over. There's some nice yellow ones available that I'm tempted to get but then the thought of all that work confining them puts me off.

I've got the large and the small rostratas but our dry season keeps them under control. I can tell though, that they're very keen to take off if given a chance. They don't like it dry, they need more water than the Psittacorum Heliconias.

We don't actually have a dry season, maybe that's why they're so enthusiastic.

Being on an island you don't have to worry about high temperatures and surges of low humidity. I'm on the edge of a continent and by the time the air moves across it relative humidity can get pretty low. Helpful for plants you don't want too rampant, not good for plants that like constant high humidity. Guess you can't have everything.