Does anybody know whats going to happen?

Is it produsing seeds?

 

Yes.

If you want to save seeds wait until the Lupin seed pods go crispy before harvesting, but leave to long and the seed cases will fly apart and the seeds fall out. Carefull where you store them whilst drying them out because mice are partial to them.

But if you want to encourage more flowers remove seed heads. If that plant is in its first year it might not be a good idea to let it put a lot of energy into seed production.

 

Yes your Lupin is producing seed heads.You can either leave it and let the seed capsules continue to mature or break the seed head off. I tend to do the latter as want the plant to increase in size rather than set seed.

 

I remove seedpods and entire stems to ground level. The plants are far better for it the following year
I give a feed at the same time too

 

Thanks guys that was helpfull whats the best time to plant after harvesting?