Adaptive responses can increase population persistence in novel environments faced during colonization events or rapid environmental change. Both phenotypic plasticity and genetic evolution contribute to adaptive responses. Theoretical studies predict that plasticity can promote evolution, and thus population persistence, by increasing fitness and delaying population decline, which preserves underlying genetic variation for natural selection to act upon. Alternatively, plasticity can impede evolution by shielding the underlying genotype from natural selection or producing maladaptive responses. Because both plasticity and evolution can contribute to adaptive responses, these two mechanisms are also likely to interact in ways that might rescue populations declining in response to global change. This work aims to address this gap in understanding interactions between these two modes of phenotypic response in a native winter annual, Collinsia verna. To address how plastic versus fixed genetic effects contribute to traits and fitness in novel environments, we sampled seeds from 25-50 individuals in each of six natural C. verna populations within the species range during May and June of 2021, completed genetic crosses within populations in the greenhouse, and then conducted a partial reciprocal transplant experiment across four sites across the species range. We collected data on fitness metrics (survival and flower number) and putatively adaptive traits (germination and flowering time, rosette diameter, height, specific leaf area). Prelimary resuts suggest there are differences in traits and plasticity among transplant sites and that populations from across the range differ in germination success, where more northern populations have increased germination success across sites. This work will further understanding of how plant populations may respond to rapid environmental changes, and related conservation practices under climate change.