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You do not need to put an onion root in water, also cutting its roots would not have done any favours to the onion. If you keep the onion in dry and aired environment it will start to sprout naturally and can then be planted.

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13y ago
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2w ago

When you cut the onion root and place it in water, the root cannot continue to grow because it has been severed from the plant's vascular system which carries nutrients and water to the root for growth. Without this connection, the root lacks the necessary resources to regrow.

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Q: Why does onion root in water did not grow after cutting root?
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