By Ada Jones · Updated October 2026 · 6 min read Short answer: feed onions with a nitrogen-rich fertilizer every 2-3 weeks from planting until the bulbs begin to swell, then stop completely. Continuing to feed after bulbing starts delays curing and shortens storage life, which is one of the most common mistakes that turns…
By Ada Jones · Updated October 2026 · 6 min read Short answer: onions need about 1 inch of water per week, consistently, from planting until about two weeks before harvest, when you should stop watering entirely to let the bulbs cure in the ground. Inconsistent watering — alternating drought and soaking — is a…
Plant a sprouted kitchen onion and something will definitely grow — just not what most people picture. Within 1 to 2 weeks you’ll have fresh green tops to snip for the kitchen. What you almost certainly won’t get is a new full-size storage bulb to replace the one you planted. An onion is a biennial:…
By Ada Jones · Updated October 2026 · 6 min read Short answer: Onion bulb splitting, where a single bulb divides into two or more lobes inside one papery skin, is usually caused by growth stress: inconsistent watering, a cold snap during early bulb development, or overly high nitrogen early on. It doesn’t ruin the…
By Ada Jones · Updated October 2026 · 7 min read Short answer: multiplier onions (also called potato onions) are a perennial-style onion that splits into a cluster of several bulbs from one planted bulb, instead of growing a single bulb from seed each year. They’re day-length neutral, more pest-resistant than standard onions, and once…
By Ada Jones · Updated October 2026 · 7 min read Short answer: onions want loose, well-drained soil with a pH of 6.0-6.8, worked at least 8-10 inches deep, with compost mixed in before planting. Heavy clay or compacted soil is the most common soil-related cause of small, misshapen bulbs — onions need loose soil…
By Ada Jones · Updated October 2026 · 7 min read Short answer: sets are the easiest and most forgiving for beginners, transplants give the best balance of size and convenience, and seed is the cheapest and gives you the widest variety choice but takes the most time and skill. There’s no single “best” option…
By Ada Jones · Updated October 2026 · 7 min read Short answer: you can grow green onions indoors year-round reliably, but full bulbing onions are a poor fit for indoor growing since they need more light intensity and space than most homes can realistically provide. If you want a steady indoor harvest, grow for…
Scallions, green onions and spring onions are all young onions picked before a full bulb forms — but they are not quite the same thing. A scallion has no bulb at all, just a straight white base. A green onion is a young bulb onion pulled early, with a slight swelling at the base. A…
By Ada Jones · Updated October 2026 · 7 min read Short answer: bulb size is driven mainly by leaf count before bulbing starts, consistent water and nitrogen through the growing season, and wide spacing. Each leaf an onion grows corresponds to a ring in the final bulb, so anything that slows early leaf growth…
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