How to Grow Onions From Sets
Difficulty
2/10
Time
Seasonal
Tools
trowel dibber compost watering can
Project Overview
Onion sets are a simple way to grow onions without the slower seed-starting stage. They need a sunny spot, firm soil and enough spacing to swell properly.
Safety Note
Onions can be harmful to pets, especially dogs and cats. Store spare sets safely, wash harvested onions before use, and use clean compost for edible crops.
What You Need
- Onion sets
- Trowel or dibber
- Prepared bed or deep container
- Compost or soil improver
- Watering can and gloves
Method
- Choose a sunny position with free-draining soil.
- Firm the soil, then place sets with the tips just showing.
- Space sets so bulbs have room to swell.
- Water after planting and keep weed-free.
- Harvest when foliage yellows and begins to fall over.
Common Mistakes
Planting too deep can slow growth. Loose, fluffy soil can let birds pull sets out before they root.
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