About 2 to 3 tablespoons.
Approximately one teaspoon of dried rosemary equals one tablespoon of fresh. (Approx. 1 tsp dry = 1 Tbsp fresh)
One small sprig of rosemary converts to 1/2 a teaspoon of dried rosemary.
4 tsp of dried rosemary equals 1/4 cup fresh.
the main stem
About 3 gm.
For rosemary, the ratio is three to one, fresh chopped to dried. So if your recipe calls for 2 tsp. of dried rosemary and you would rather use fresh, you will need three times as much, or two tablespoons of fresh chopped rosemary leaves.
1 teaspoon of dried dill = 1 sprig of dill
1 pack
As much as you want, - a "large" sprig could be any size, you are seeing it, not us.
With thyme one fresh sprig equals one-half teaspoon of dried thyme. In general, use two to three times the amount of fresh thyme as dried. When adding to soups and stews, crush the leaves between your hands before stirring it in your recipe.
Of course you can if you really enjoy rosemary that much. Remember to remove the needles if you are going to puree and blend the soup, it's best to leave the sprig of rosemary intact when simmering the soup as it aids in ease of removal for further processing or limiting the amount of time you allow the sprig to simmer. The rosemary might go better with "roasted" squash cubes infused with rosemary, and served with other grilled veggies in a colorful medley of seasonal veggies.
Usually about three times as much, but if a recipe calls for fresh, do your best to use fresh. Dried rosemary is one of those herbs that does not do very well dried. Fresh vs dried makes a huge difference. Also, depending on the recipe, if you're using dried rosemary, don't leave it in the food. Let it sit to soak the flavor in and then strain/take it out.