Download Free Vegetable Growing Guide PDF (opens in a new tab)
Other Common Names: Bawang besar, japanese onion, bawang bombay, hom yao, piyaz, rata lunu, sibuyas, tama negi, tsung tau, or yang cong.
How to Grow Shonan Red Onion
In short growing season areas, pre-germinate the seeds in flats or trays indoors. Break up the soil with a trowel before sowing. Sow seeds in late summer to early fall. Transplant seedlings in early fall or no later than mid-fall. Water the seeds well and keep the soil moist, especially during germination.
Mulch the area with straw to retain moisture and prevent weeds. Young onions are very prone to be crowded out; pull weeds promptly. Fertilize as needed. As harvest time nears, the foliage will turn yellow or brown and may fall over. At the first sign of yellowing, reduce the quantity of water. For full-maturity onions, allow most of the leaves to fall before harvesting.
