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How to Grow Onions from Onions

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Onions are vegetables that are both easy to grow, delicious, and present in many dishes. If you have an onion on hand, you don’t need to grow onions by seed. By simply cutting off the bottom of an onion and planting it in the ground, you can grow onion plants from cut onion pieces. With time, patience, and plenty of water, you can harvest onions in 90-120 days.

Prepare the onion

Image titled Grow an Onion from an Onion Step 1

Image titled Grow an Onion from an Onion Step 1

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Cut the bottom of the onion about 2.5cm from the bottom up. Place the onion on a cutting board and use a sharp knife to cut off the bottom and peel off the outer skin. Your piece of onion needs to be about 2.5cm long to grow into a healthy onion plant. [1]

  • If you want to grow onions outdoors, you should plant them in early spring. If you grow onions indoors, you can plant them at any time of the year.
  • You can use most types of onions to grow, including store-bought onions. This method works best if you have fresh and unbroken onions.
Image titled Grow an Onion from an Onion Step 2

Image titled Grow an Onion from an Onion Step 2

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Dry the bottom of the onion for 12-24 hours. After slicing the onion, you can discard the rest of the onion and place the bottom of the onion on a dry flat surface with the cut side facing up. Wait for the piece of onion to dry for a day until the onion is small and dry to the touch.

  • You can use the rest of the onion to make dishes or make compost if you don’t want to throw it away.
Image titled Grow an Onion from an Onion Step 3

Image titled Grow an Onion from an Onion Step 3

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Insert toothpicks into each side of the bottom of the onion. Divide the onion into 4 pieces, then insert a toothpick into each onion half-deep. Insert evenly spaced so that 4 toothpicks form an X shape.

  • This step will help you place the onion over the bowl of water while the onion takes root.
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Image titled Grow an Onion from an Onion Step 4

Image titled Grow an Onion from an Onion Step 4

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Place the onion over the mouth of a small bowl of water. Fill a bowl up to the rim with water and place it on a flat surface. Place the onion on top so that the bottom just touches the surface of the water and leave it for 3-4 days. Plant the onion when tiny white roots sprout.

  • The diameter of the bowl should be less than the length of the toothpicks.
  • To help the onions grow faster, keep them near a sunny window or outside.

Planting pieces of onions

Image titled Grow an Onion from an Onion Step 5

Image titled Grow an Onion from an Onion Step 5

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Pour well-draining soil into the pot. Go to the nursery and buy a well-draining soil mix and a large pot with holes in the bottom. Fill the pot halfway with soil – you will cover the rest of the pot with soil after planting the onion pieces.

  • If your garden soil is well drained, you can also grow onions outdoors.
  • Test the drainage of the soil by digging a hole about 30 cm and filling it with water. If the water recedes within 5-15 minutes, the soil is well drained. [2]
Image titled Grow an Onion from an Onion Step 6

Image titled Grow an Onion from an Onion Step 6

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Place the onion in the soil and pour the soil over it. When the white roots have sprouted from the bottom of the onion, place the onion in the center of the pot. Pour soil into the rest of the pot above the onion until about 2.5-5 cm from the top of the pot. [3]

  • Depending on your preference, you can place the pot of onions that have just been planted indoors or outdoors when the weather is warm and sunny.
  • If you plant the entire bottom of an onion in one spot, you may get more than one bulb, but they will clump together and won’t grow well. Each onion slice will grow about 1-6 seedlings, onion slices as shown in the picture can be cut in half. To have many seedlings and each plant to grow well, use a sharp knife to cut the bottom of the onion into sections so that each part has a few roots.
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Image titled Grow an Onion from an Onion Step 7

Image titled Grow an Onion from an Onion Step 7

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Water the onion pieces immediately after planting. Watering will help the onion to adapt to the new environment and grow roots faster. Water enough to moisten the soil but not soggy.
Image titled Grow an Onion from an Onion Step 8

Image titled Grow an Onion from an Onion Step 8

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Spray nitrogen fertilizer into the soil after watering. Onions thrive in soils with high nitrogen concentrations. Spray nitrogen fertilizer directly into the soil and mix well with your hands to provide the necessary nutrients for onion plants to grow. [4]

  • You can buy nitrogen fertilizer at most garden stores and plant nurseries.
  • Read the label on the package to find out how much fertilizer to apply to the soil.

Taking care of onions

Image titled Grow an Onion from an Onion Step 9

Image titled Grow an Onion from an Onion Step 9

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Water the onions about 2.5 cm of water every week. Onion plants need a lot of water to grow healthy and produce more onions. You should check the soil every day – if it feels dry to the touch, you need to water it until it is moist. [5]
Image titled Grow an Onion from an Onion Step 10

Image titled Grow an Onion from an Onion Step 10

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Regularly weed the garden if you grow onions outdoors. Onions will have a hard time competing with invasive plants, and weeds can take away the water and nutrients needed for onion growth. You should regularly check and weed as soon as you see them appear. [6]

  • Avoid spraying herbicides around onions, as most herbicides kill both the weeds and the crop.
  • Check for small insects or other pests on onion plants and spray with a non-toxic and plant-friendly repellent if found.
Image titled Grow an Onion from an Onion Step 11

Image titled Grow an Onion from an Onion Step 11

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Fertilize onions every 2 weeks. Regular fertilization will help the onion plant to grow large and healthy onions. Spray with a nitrogen-rich fertilizer at least twice a month until the onion begins to emerge from the ground. [7]

  • Stop fertilizing when the onion begins to emerge until harvest.
  • Image titled Grow an Onion from an Onion Step 12

    Image titled Grow an Onion from an Onion Step 12

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    Harvest onions when the onion plants flower. When the onion plant begins to flower, you can harvest the onion. Use a shovel to dig up the soil around the onion and grab the base of the onion leaves to pull the onion out of the ground.

    • On average, onions grown with onion pieces will take about 90-120 days to form new bulbs.
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    Steve Masley

    Steve Masley

    Specializes in growing organic vegetables

    Steve Masley has designed and maintained organic vegetable gardens in the San Francisco Bay Area for over 30 years. In 2007 and 2008, Steve taught Local Sustainable Agricultural Practices at Stanford University.

    Steve Masley
    Steve Masley
    Specializes in growing organic vegetables

    You asked if it is possible to cut the onion leaves? Pat Browne and Steve Masley of Grow it Organically say: “You can harvest the onion leaves whenever you like, but if you want a bigger onion, you should leave it as is. Each leaf will form a layer. the onion’s coat, so if there are 8 or 10 onion leaves, the onion will have 8 or 10 growing coats.”

    • Advice

    • If you’re initially growing onions in a pot, you can always move them to an outdoor garden later.
    • As long as you take good care of it, your onion pieces will produce as many onions as onions grown from seed.
    • Remember to take care of the onions and weed!
    • To keep onions fresh for many months, you need to store them properly.

    Warning

    • If your onion plant looks squishy, discolored or unhealthy, it’s probably sick. You need to separate the onion from the other plants and talk to the staff at the nursery to find the best treatment.

    Onions are vegetables that are both easy to grow, delicious, and present in many dishes. If you have an onion on hand, you don’t need to grow onions by seed. By simply cutting off the bottom of an onion and planting it in the ground, you can grow onion plants from cut onion pieces. With time, patience, and plenty of water, you can harvest onions in 90-120 days.

    Thank you for reading this post How to Grow Onions from Onions at Tnhelearning.edu.vn You can comment, see more related articles below and hope to help you with interesting information.

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