The answer to 'why is my flower bed weeds' is that weeds can easily take over flower beds due to a few common causes. Weeds thrive in the same conditions that many flowers need - moist, nutrient-rich soil. They also spread quickly through seeds, rhizomes, and other means. Without proper maintenance, weeds will outcompete your flowers for resources and dominate the bed.
Some common symptoms of a weed-infested flower bed include a lack of flowering, stunted plant growth, and an overall unkempt appearance. To solve this issue, you'll need to identify the specific weed types, remove them thoroughly, and take steps to prevent future weed growth.