Onion (Allium cepa) — vegetable (transplant).
Onion (Allium cepa) – vegetable (transplant). The onion is a rustic staple vegetable, grown for its aromatic bulbs used throughout the kitchen.
Benefits
- Fresh harvest from the garden
- Easy to grow in pots or in the garden
Seasonal care
- Spring: Plant the seedling once the risk of frost has passed (after 1 May); fertilise at planting.
- Summer: Water consistently, without excess.
- Autumn: Harvest when ripe (July-September). Autumn is the ideal time for planting.
- Winter: Tolerates down to -8°C; in cold areas protect the base with mulch.
Specifications
- Botanical name: Allium cepa
- Botanical family: Amaryllidaceae
- Life cycle: Annual
- Foliage: Deciduous
- Exposure: Sun
- Placement: Outdoors
- Growth rate: Fast
- Minimum temperature: -8 °C
- Drought resistance: Low
- Mature height: 40-120 cm
- Mature width: 30-60 cm
- Flowering period: Summer
- Flower colour: Yellow/white
- Fragrance: No
- Fruiting period: July–September
- Soil: Fertile, loose, well drained
- pH: 6,0-7,0
- Watering: High
- Fertilising: Every 2–3 weeks during the season
- Pruning: No (side-shooting for some varieties)
- Mulching: Recommended
- Product code: 4013153
- EAN code: 6420384013153
Warnings
- Needs consistent watering
- Frost-sensitive – plant after 1 May
Frequently asked questions
Does it survive winter outdoors?
Partly – it tolerates down to -8°C; in very cold areas protect the base or shelter it.
What exposure and watering does it prefer?
Sun; high watering. The onion is a rustic staple vegetable, grown for its aromatic bulbs used throughout the kitchen.
When is it harvested / does it fruit?
Fruiting period: July-September.
