We are at a pivotal inflection point for addressing landscape scale challenges in the United States and across the globe. From climate change and land-use planning to water management and environmental justice, complex and increasingly urgent issues cross political boundaries, scales, demographics, and sectors. Collaboration is paramount for successfully addressing these issues, and practitioners, funders, and researchers all have a role to play in finding and implementing landscape-scale solutions. However, even when diverse groups work together, success isn’t guaranteed.Collaborative capacity is essential for all kinds of partnerships, groups, and networks to effectively work together. Yet even those who support this work are not entirely familiar with what collaborative capacity is, nor why it’s important. Network practitioners, funders, and researchers need more information about collaborative practice so they can partner for greater impact at scale. To help address this need, the California Landscape Stewardship Network commissioned a study that explored the elements of collaborative capacity and the essential role it plays in achieving social and ecological goals.