Search Our Plant Directory
Botanical Name: Allium cepa
Common Name(s): Onions
Categories: Fruits and Vegetables
There are two types of onions: bulb onions, which come in various shapes, sizes and colours, and are used, raw or cooked, in dishes and salads; and spring onions (also called green onions or scallions), which are grown for their leaves and white stems and used mainly in salads and in Oriental cuisine.
Synonym: Allium ascalonicum
Botanical Pronunciation: AL-ee-um KEP-uh
Semi Frost Hardy
Common Pests and Diseases
Pests: Thrips.Diseases include mildew (during wet weather), pink rot, storage rot.
Bulb onions take six to eight months to mature. The bulbs are ready to pull when the leaf tops dry out and fall over. Store harvested bulbs in a well-ventilated, dry place. One 5m-row of bulb onions should yield enough for a family of four. Sow every four weeks in season.
Bulb onions are a winter crop.
Sow seeds for bulb onions in trays, a seedbed or in the open.Cover with 60mm of fine soil after sowing.Seedlings emerge within 10â€“14 days.Do not plant seedlings too deep.Space bulb onions 70mm apart in rows.
A sandy loam soil, well dressed with compost and manure, is best .
Onions are used, raw or cooked, in dishes and salads.