Kaik, those pics are very beautiful. Thank you for sharing them with us.
My old, dead Echinacea and Monarda plants are still standing even after the ice storm. I leave them so the birds have seeds throughout the winter and early spring. I will likely cut them off in May, remove the seed heads, cutting up the stalks in small pieces and putting them to the beds. They assist with mulching the soil and returning nutrients to it (for free!).
In Ontario, Canada, we normally start cutting the grass around the middle of May.
I woke up to at least an inch or more of snow this morning so I'll have to get out there shortly to shovel. This is spring in Canada ... LOL!