The answer to 'mulch weeds' is that mulching is an effective way to prevent weeds from growing in your landscaping. Applying a 2-4 inch layer of organic mulch, such as wood chips or shredded bark, around your plants can block sunlight from reaching the soil and smother weed seeds. This prevents them from germinating and taking root.
However, it's important to note that mulch alone won't completely eliminate existing weeds. You'll still need to manually remove any weeds that do manage to grow through the mulch. And you'll need to replenish the mulch layer periodically as it decomposes over time. If you're dealing with a persistent weed problem, it may be best to call in a professional landscaper who can assess your specific situation and provide customized solutions.