Yes, a spring onion can become a bulb onion if it is left to continue growing.
Spring onions are essentially young onions, harvested before the bulb has fully developed. They have a milder flavor compared to mature onions and are often used in salads, as garnishes, or in cooking. If you allow spring onions to remain in the ground and mature, the bulb at the base will swell and eventually develop into a full-sized onion. The timing for this maturation depends on the variety of onion and the growing conditions.
Here's a breakdown:
- Spring Onions: Harvested early, with a small bulb or no bulb.
- Mature Onions: Allowed to grow to full size, with a well-developed bulb.
Therefore, the answer is definitively yes.
