Regrowing Herbs FAILED : Tarragon and Rosemary

I was trying to regrow the herbs I got last December and I have some herbs that I really have a hard time regrowing.

Two of which is my Tarragon and Rosemary.
I cut 2 new stems from my 1 year old Tarragon mother plant, and tried to grow roots from them, and put them in a cup of water.
Sadly, 1 wilted. I am not sure what I did wrong on it, but in the same cup 1 stem is still surviving, no roots though.

I have also cut some Rosemary and put in a cup of water, but this time I have no luck at all.

I think I have cut 9 stems all in all but I have tried several things like planting them directly to soil, putting them in a partial shade area of our house, put them in a window sill, almost all possible way except putting root hormone, but no luck. :(

Sad but true, not all I propagate is a success, but there is always room for improvement and I will keep on trying. :)

Let me know how you propagate your Rosemary or any other herbs, it may help me grow mine.

Thanks for reading and happy gardening!