Write an article based on this "Give your onion about 1 in (2.5 cm) of water per week. Weed your garden regularly, if outside. Fertilize your onion every 2 weeks. Harvest"

Article:
Onions need plenty of water to stay healthy and grow more onions. Check the soil every day—if it feels dry to the touch, water your onion until it feels moist. Onions have a hard time competing with invasive plants, and weeds can steal their water and nutrients. Check your garden often for weeds and, if you notice any, pull them right away.  Avoid spraying weed killers around the onion, as most herbicides can kill both weeds and garden plants. Check for small insects or other pests on your onion as well and, if you see any, spray the onion with a non-toxic, plant-friendly insect repellent. Fertilizing your onion plant regularly helps it grow large, healthy bulbs. Spray the onion plant at least twice a month with a nitrogen-rich fertilizer until the onion plant's bulb starts to poke from the soil. When the bulb starts poking out of the soil, stop fertilizing the onion until you harvest it. your onion when it forms flowers. When your onion starts to grow flowers, it's ready to harvest. Loosen the soil around the onion with your shovel and pull the onion by the base of its green foliage to pull it out of the ground. On average, it takes onions grown from cuttings about 90-120 days to grow a new bulb.