Persian onion has two main types: 'Red Globe' and 'White Spear'. 'Red Globe' makes big, round bulbs with a deep red skin and a mild taste, good for cooking. 'White Spear' gives long bulbs with a white skin and a slightly stronger taste, good for cooking and pickling. When choosing seeds, pick plump, firm ones without damage. For seedlings, pick ones with healthy green leaves and well-grown roots. Make sure the seller has good quality to ensure good growing.
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