Gather all your ingredients and chop the vegetables as indicated.
In a large soup pot, dry-toast the coriander seeds and fennel seeds over medium heat for a few minutes until fragrant. This step enhances their flavors.
Add all of your ingredients, except the water, to the pot. Stir to combine.
Pour 12 cups of water into the pot, covering all the ingredients. Slowly bring the mixture to a soft boil over medium high heat.
Once it boils, reduce the heat to low, cover, and let the broth simmer for about 1.5 to 3 hours. This allows the flavors to meld and the vegetables to release their goodness. Add salt and pepper to taste during this time.
After simmering, carefully strain the broth into another pot or large bowl. Discard the solids or save them for compost.
Your healing herbal vegetable broth is ready to serve. Sip it as a comforting and soothing drink or use it as a base for soups, stews, or any recipe that calls for broth. It's a wonderful way to nourish your body and support your immune system.