<p>Wild fruit tree species are increasingly recognized for their ecological, genetic, and practical value, particularly in the context of biodiversity conservation and reforestation. Among them, European wild pear (<i>Pyrus pyraster</i> (L.) Burgsd.) and almond-leaved pear (<i>P</i>. <i>spinosa</i> Forssk.) offer promising potential, yet their reproductive biology remains insufficiently understood. This study examines how fruit and seed morphology, alongside fruit chemical composition and environmental and geographical variables, influence germination success and early seedling development. Specifically, we aimed to determine whether these traits can reliably differentiate the species and detect intraspecific variation across provenances. In order to explore these distinctions at both interspecific and intrapopulation levels, fruits were sampled from ten natural populations. We assessed their morphological and chemical characteristics, and conducted a two-year nursery trial to examine germination dynamics and seedling performance. Germination was consistently higher in <i>Pyrus spinosa</i>, while <i>P</i>. <i>pyraster</i> produced more vigorous seedlings. Seed mass showed a strong positive correlation with seedling height and collar diameter, but did not predict germination rate. Fruit stalk length also correlated strongly with seed mass and seedling growth, suggesting indirect genetic and physiological linkages. Significant intraspecific variability was detected in both species, mediated by geographic and ecological structuring of the populations. Indeed, full RDA model revealed a strong joint effect of environmental and geographic predictors on studied traits in both species. These findings highlight how both inherited traits and provenance shape early developmental success, offering practical implications for restoration, nursery propagation, and conservation amid shifting environmental conditions.</p>