One of the benefits to wildlife is that the blue tits seem to love its seeds - I am unsure why because the seeds are tiny, but in autumn they are often to be seen perching on the end of the flower stalk pecking away at the gone to seed flower head. I've only seen blue tits do this because the stem can just about take their weight and it's quite amusing seeing blue tits bouncing around on them!
|This clump on the right is just self seeded in the gravel|
Mostly though, this plant's main raison d'etre here is that it is my no. 1 butterfly magnet, and the flower that the Hummingbird Hawkmoth loves best too.
If you find butterflies boring then don't bother looking any further...... (but how could you not love them?!)
In the photos on the right side bar that's a Small Copper on this plant as well.