The answer to 'why is my hedge weeds' is that your hedge may have become overgrown with weeds for a few common reasons. Hedges can attract weeds if they are not properly maintained, if the soil is poor, or if there is too much shade or moisture around the hedge. Weeds can quickly take over and make your hedge look unkempt.
To fix this, you'll need to remove the weeds, improve the soil, and maintain the hedge regularly. This may involve pruning, fertilizing, and providing the right amount of sunlight and water for your hedge species. If the issue persists or the hedge is severely overgrown, it's best to call in a professional landscaper to assess and properly maintain the hedge.