Regrowing Food at Home: What the Evidence Actually Supports

A number of vegetables can be regrown from scraps under the right conditions, though it is worth noting that results vary by plant type and care. The Food Revolution Network identifies that regrowing from scraps requires a stem or plant portion capable of generating roots, or alternatively a seed or pit. Among the most reliably cited candidates are green onions and scallions, which can be regrown simply by placing the white-rooted base in a small amount of water; celery and lettuce bases placed in shallow water have also been widely documented to produce new leafy growth. According to Utah State University Extension, green onions, celery, and cilantro are among the plants that can regrow in a cup of water. These methods do not typically produce the same yield as a fully cultivated garden plant but do offer a supplementary source of fresh produce with minimal resource input. The broader value of kitchen garden regrowing, as noted by Planet Organic, lies in both waste reduction and the educational dimension it offers, particularly for children, in demonstrating how food grows and cycles back into use.