The unearthing of fullerenes, nanotubes, and graphene has sparked a profound revolution in agriculture, propelled by the integration of carbon nanomaterials (CNMs). These extraordinary materials emerge as prime candidates to tackle the intricate challenges associated with sustainable crop production and protection. Their versatility is evident across various applications, spanning from fortifying soil quality and facilitating nutrient delivery to exerting control over pests and enhancing resistance against diseases. The extensive potential of CNMs in these domains offers a promising avenue for reshaping traditional agricultural practices. However, amid the enthusiasm for their transformative capabilities, a prudent approach is essential. Environmental and biological concerns associated with the utilization of CNMs warrant meticulous consideration. This chapter embarks on a comprehensive exploration of the diverse spectrum of CNMs in terms of their impact on the promotional attributes of plants. It delves into the nuanced scientific understanding of their impacts on plants and other organisms, intricately examining both the positive and negative facets of their influence. Through this exploration, a balanced perspective on the integration of CNMs in agriculture emerges, navigating the fine line between innovation and responsible implementation.