The answer to 'which is better organic fertilizer or synthetic fertilizer' is that both have their advantages, and the best choice depends on your specific landscaping needs and goals. Organic fertilizers are made from natural plant and animal materials, while synthetic fertilizers are manufactured chemically.
Organic fertilizers tend to release nutrients more slowly and steadily over time, improving soil health and structure. They're generally safer for the environment and can be a good choice for homeowners focused on sustainable gardening. Synthetic fertilizers provide a more immediate nutrient boost, but may not improve soil quality as much. They can also be more cost-effective for large-scale landscaping projects.