2. celery. Celery is chewy and nutritious, and many people like it. Friends who don't want to buy seeds can directly plant celery heads that they bought home before. Like most hydroponic vegetables, just put the head of celery in a bowl, fill it with water and put it on the balcony. In about 7 days, celery will grow buds, and after leaves grow, celery heads can be moved to potted plants for normal maintenance.
3, shallots. Onions are very drought tolerant. In order to prevent onions from flooding, you must choose potted plants with leaking holes at the bottom, so that the excess water will flow out quickly after each watering. Now plant shallots, and they will sprout in two weeks. Germinated shallots need to adjust the gap between seedlings to prevent them from growing too densely, and then fertilize every 10 day. You can directly use rice washing water as fertilizer, which is natural and easy to use. Once the shallots are harvested, the whole family can manage enough.