With the sustainability crisis intensifying, education has no generation to lose if positive transformations are to unfold. Sustainability education must evolve to motivate action across age groups. Educators must implement generationally-attuned sustainability teaching, utilising cohorts’ orientations from Gen X’s pragmatism to Millennial teamwork to Gen Z’s digital citizenship. Multi-generational sustainability learning that blends online and in-person formats while enabling collaborative applied impact represents the promise of progress. Getting sustainability education right for varying generational perspectives is imperative for sowing the seeds of change now and preparing society to reap more sustainable futures. Notable variations exist in effective sustainability education techniques for diverse generational learners. Appealing to lived generational values through relevant framing and life-stage connections enhances resonance. Additionally, experiential learning focused on systemic processes, innovation or activism provides effective applied learning pathways tailored to each cohort’s comfort level. Furthermore, strategically employing digital tools suited to each generation’s technical proclivities facilitates participation. Three theoretical and practical considerations can be drawn from the study.