Epigenetic changes and maternal effects, collectively termed transgenerational effects, allow responses of organisms to environmental factors to be passed between generations. This is well-known in the case of sexual reproduction but little studied in asexual reproduction, which is often the primary mode of reproduction in clonal plants. To test for transgenerational effects via vegetative reproduction in the clonal herb Alternanthera philoxeroides, a first generation of clonal fragments were subjected to crossed nutrient and herbivory treatments, using the insect herbivore Planococcus minor. Stem and root fragments taken from these plants were then grown into a second vegetative generation and subjected to the same nutrient treatments. Adding nutrients increased total N concentration in first-generation fragments; herbivory increased total N slightly in shoots and decreased N slightly in roots. First-generation fragments given higher nutrients produced second-generation fragments with more final total dry mass and stem nodes. This effect was greater in second-generation fragments also given higher nutrients and greater in second-generation fragments derived from stems than in those derived from roots. Herbivory on first-generation fragments decreased growth of second-generation fragments slightly. This effect was greater if first-generation ramets had been given higher nutrients and greater in second-generation fragments derived from roots. Results strengthen evidence that transgenerational effects can be transmitted via vegetative reproduction in plants and show that such effects can be greater when resource availability is higher and can depend on the organ from which offsping are produced.