About
Allium cepa 'North Holland Blood Red' produces vibrant burgundy bulbs that offer a mild taste. Its lush green foliage complements a variety of dishes, making it suitable for both fresh salads and culinary applications.
About the genus
Allium consists of bulbous herbaceous perennials characterized by a pronounced onion or garlic aroma. They feature linear, strap-like, or cylindrical leaves that arise from the base. The flowers, which can be star-shaped or bell-shaped, are arranged in an umbel atop a stem that lacks leaves.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Herbs - Culinary, Bulbs
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1 year
- Fragrance
- Foliage, Fruit
Care notes
- Cultivation
- Grow in fertile, moisture retentive, but well-drained soil in full sun. Consider liming if the soil is acid, pH below 6.5. Best harvested when young with the bub no more than 1-2.5cm across. See how to grow: salad onions for further advice
- Pruning
- Not required
- Propagation
- Propagate by seed. See sowing vegetable seeds
- Pest resistance
- May be susceptible to onion fly, leek moth and narcissus eelworm
- Disease resistance
- May be susceptible to onion white rot, onion downy mildew, leek rust and onion neck rot. Bolting, producing flowers, may be a problem