Proper sourcing of seed for ecological restoration has never been straightforward, and it is becoming even more challenging and complex as the climate changes. In this symposium, we will discuss how plants are responding to changing climates and how this may influence seed sourcing decisions. We will work with the seed industry to understand their challenges in providing seed for restoration. We will work to develop guidelines that are scientifically reasonable and implementable. And we will focus on how to develop adequate supplies of reliable species and increase seed storage capacity.