Onion sets should be planted shallowly, with the pointed tip just barely showing above the soil surface. The recommended planting depth is about 1 to 2 centimeters (around ¾ to 1 inch) deep, so the tip is just visible above the soil

. This shallow planting helps ensure proper bulb development and prevents the sets from rotting or struggling to sprout. Additional planting tips include:

• Plant sets 5 to 10 centimeters (2 to 4 inches) apart to allow enough space for bulb growth

• For row spacing, leave about 25 to 30 centimeters (10 to 12 inches) between rows

• Firm the soil around the sets after planting and water well

• If soil settles and exposes the bulbs partially, you can add a little more soil or compost over them without burying them too deep

• Make sure the pointed end (top) of the set is facing upward when planting

• Avoid planting deeper than about 1 inch, as deeper planting can inhibit bulb formation

In summary, plant onion sets shallowly, just enough to cover the bulb neck with soil, with the tip showing above the surface, spacing them 2 to 4 inches apart, and rows about 10 to 12 inches apart for best results.