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Herbs - CulinaryBulbs

Allium sativum var. ophioscorodon
  • RHS Plants for pollinators

rocambole

A vigorous hardneck garlic producing strongly flavoured, aromatic white skinned garlic cloves. Hardneck garlic have strongly flavoured cloves, often produce flower stalks, but only store until mid-winter, each bulb will yield up to ten cloves

Other common names
hardneck garlic
serpent garlic
Synonyms
Allium controversum
Allium sativum var. subrotundum
see moreAllium contortum
Allium ophioscorodon
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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Sand
Loam
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Pink White Green Grey Silver
Autumn
Winter
Position
  • Full sun
Aspect

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Amaryllidaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Skin irritant/allergen. Wear gloves and other protective equipment when handling
Genus

Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem

Name status

Correct

How to grow

Cultivation

Garlic grows best in a sunny, sheltered spot with fertile, well-drained soil. If you have heavy soil try growing your garlic in a raised bed or container. To produce good quality bulbs garlic needs a period of cold, so it’s best planted in late autumn or early winter. Divide each bulb into individual cloves and space the cloves 15cm apart, with the tip 2.5cm below the soil surface. Space rows 30cm apart. Harvest from early summer once the leaves have turned yellow. Please see our grow your own advice page about garlic for further advice.

Propagation

Propagate by dividing the bulb into cloves

Suggested planting locations and garden types
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
Pruning

No pruning required

Pests

May be susceptible to allium leaf miner and onion fly

Diseases

May be susceptible to onion white rot, onion downy mildew and leek rust

Get involved

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