Gardening expert Joe, known as 'JoesGarden' on TikTok, emphasizes the importance of nasturtiums in every garden for their natural pest control benefits. This edible plant attracts pests such as slugs and snails, effectively drawing them away from other crops. Joe highlights that all parts of the nasturtium plant, including flowers, seed pods, and leaves, are 100% edible. He suggests that April is the perfect time to introduce nasturtiums, either by purchasing inexpensive plants or sowing seeds. Once planted, nasturtiums can self-seed and return each spring, providing an ongoing supply. Viewers have shared their positive experiences with nasturtiums, noting their adaptability and culinary uses, such as in pesto. This makes nasturtiums a versatile addition to any garden, enhancing both pest management and culinary options.