13 Onion Growing Stages: A Complete Guide

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Ever wondered how onions grow? There are 13 onion growth stages, each with its own unique characteristics. Let’s take a closer look at each stage of onion growth.

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There are two main ways to plant onions: onion seeds or bulbs. Regardless of whether you choose, selecting an area with loose, well-draining soil and full sun is a must.

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Stage 1. Planting

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The seed or bulb sprouts tiny roots and a shoot. This takes about 7 to 10 days. Once the onion has germinated, the tiny leaves will emerge from the soil.

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Stage 2. Germination

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During vegetative growth, the onion plant will produce a cluster of leaves called a scallion. The scallion will continue to grow and eventually form a bulb at the base.

Stage 3.  Vegetative Growth

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As the plant continues to grow leaves, the bulb also starts to take shape. The leaves and bulb grow in tandem, complementing each other’s progress.

Stage 4.  Bulb Development

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