The answer to 'how to maintain flower bed' is to regularly maintain the bed by weeding, deadheading flowers, and replenishing mulch. Start by weeding the bed, removing any unwanted plants that can compete with your flowers. Deadhead spent flowers to encourage more blooms. Add 2-3 inches of mulch around the plants to retain moisture and suppress weeds. Water the bed regularly, about 1 inch per week, and fertilize with a balanced fertilizer every 4-6 weeks during the growing season.
Maintaining your flower bed takes some regular effort, but it will keep your plants healthy and blooming all season long. If you notice issues like pests, diseases, or drainage problems, it may be best to consult a professional landscaper for guidance.