My First Winter with a Garden

My First Winter with a Garden

Hello. I live in the Seattle area and spent mid-late summer planting. I'm concerned about some of my favorites. My partner planted a white day lilly in August for our anniversary and all its leaves are now brown. I've been told to leave it alone, but should I trim it or mulch it or something? It's just one stalk. Also, I have two severely scrawny clematis sprigs that seemed to have died in September already. Should I cover them, give up on them, cut them back so they can start over in spring? Also, a recently-planted hydrangea that was getting new growth fairly late-season is now browning and seems to have frost damage. My two star jasmine seem to be fine so far, but I don't want to lose them. I also have an herb garden with huge basil plants that I harvested from a few weeks ago, but should I mulch those? I have other herbs, too, that I'm unsure about (oregano, mint, lemon grass, rosemary and dill). Please help. I'm green to the green thumbing.
Bugs!

Bugs!

Help! Organization issues!

Help! Organization issues!

Parsnips

Parsnips

UNKNOWN PLANT.

UNKNOWN PLANT.

It’s Spring – Yea!

It’s Spring – Yea!

What’s this on my plant?

What’s this on my plant?