When should I fertilize my grass to ensure optimal growth and a lush, vibrant lawn? Is there a specific time of year that is considered ideal for applying fertilizer, or does it depend on the type of grass I have? Furthermore, how do climatic conditions and seasonal variations influence the timing of fertilizer applications? Should I take into consideration soil temperature, moisture levels, and weather patterns before determining the appropriate window for fertilization? Are there particular signs I should look for in my lawn that might indicate it is time to fertilize, or perhaps even specific stages of growth that require different types of nutrients? Considering all these factors, how can I devise a fertilization schedule that aligns with the unique needs of my grass while also promoting long-term health and sustainability? It seems crucial to comprehend these intricacies for a thriving lawn. What expert opinions or resources could provide further clarity on this essential topic?