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This lovely, toxic plant should bloom again in the fall. If you prune them carefully and keep the spent flowers plucked it should be alright. Here are a couple articles:
https://www.gardeningknowhow.com/ornamental/flowers/monkshood/growing-monkshood-plants.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/leafroller-damage-control.htm

I do notice a few things, but these kinds of answers won't be straightforward, unfortunately. Likely, you will have to test the soil for multiple issues. I notice a potassium deficiency. I see yellowing leaf edges, starting with the bottom first. This could be due to a few factors. It could b an actual deficiency, or an excess of nitrogen. Both will prevent the plant from getting any potassium. You'll have to test this.

Another thing that could be happening is either a lack of, or an excess of water. This will prevent the plant from absorbing a range of nutrients. Usually, you can just feel down a few inches to confirm that it has dried out a little before watering again, if possible.

Now the scorch. This can happen if a portion of it is getting full sunlight. But it could be a bacterial or fungal infection, as well.

Fortunately, you can test for all of these. This will help:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

Your local extension service will be helpful if you would like them to test for these issues.

https://www.gardeningknowhow.com/garden-how-to/info/what-is-extension-service.htm