Act as an advanced SEO strategist. Develop a comprehensive, automated workflow for identifying high-volume, low-competition keyword opportunities in the sustainable gardening niche for a target audience of home gardeners aged 45-65. The process must utilize a combination of tools (e.g., SEMrush, Ahrefs, Python scripts, or Google Sheets) to efficiently scrape, analyze, and prioritize keywords. Key metrics to analyze must include average monthly search volume (prioritizing volumes above 1,000 searches), keyword difficulty (targeting a score below 30), competitor analysis (focusing on gardeningknowhow.com and almanac.com), and topical relevance to selling beginner-friendly gardening tools and organic seeds. Exclude keywords related to large-scale commercial agriculture. The final output should be a structured, actionable report or dashboard concept that highlights clusters, content gaps, and the estimated traffic potential, formatted for immediate use by a content team.