I actually love my crocosmias. I have an orange version which thrives for a few years in one spot, and then it dies off. But, I would plant a few corms in another spot, and then it does well there. Mines never get to the point where it is invasive. The ones I have are about 3 feet tall, so they don't tend to flop much. They also multiply mostly by corms, and not too much through a spreading root system. I don't think it is a lucifer.
Here is a photo in the garden and in a vase with some Leonotis leonorus
Two years ago, I bought some yellow ones. I am trying to nurture this clump along so that I can have some dotting other areas of my garden. This is the original clump in it's second year - I dug out about 6-7 corms in early spring around the edges to start a second clump. The height of this one is about 2.5 feet tall - it gets overhead sprinkling and still holds up.
