The longevity of fresh herbs varies depending on how they are stored. Here's a general guideline for how long fresh herbs can last in different conditions:
Fresh Herbs in Water: When you place fresh herbs in water, similar to how you would keep a bouquet of flowers, they can last for a few days to a week, depending on the herb type and freshness at the start. Some hardy herbs like rosemary and thyme can last longer in water than more delicate ones like cilantro or parsley.
Fresh Herbs on the Countertop: When left on the countertop at room temperature, most fresh herbs are relatively perishable and won't last as long as they would in the refrigerator. Typically, you can expect them to stay fresh for 1 to 3 days. Delicate herbs like cilantro and parsley tend to have a shorter shelf life, while sturdier ones like rosemary and sage might last a bit longer.
Fresh Herbs in the Refrigerator (not wrapped): When stored in the refrigerator, fresh herbs should be loosely wrapped in a slightly damp paper towel or placed in a resealable plastic bag with some air circulation. When stored this way, the shelf life of fresh herbs can be extended. Generally, you can expect them to last around 1 to 2 weeks, with some hardy herbs lasting longer.
Keep in mind that these are rough estimates, and the actual shelf life of fresh herbs can be influenced by factors such as the herb type, initial freshness, and the conditions they were exposed to before storage. Additionally, certain herbs may dry out or lose their flavor over time even if they don't appear spoiled, so it's always best to use them as soon as possible for the best taste and aroma.