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Allium hollandicum
  • 911±¬ÁÏ Plants for pollinators

Dutch garlic

Robust, upright bulbous perennial to about 1m tall, with long, strap-shaped, mid-green leaves, dying back at flowering time, and dense rounded umbels 10cm across of starry, rosy-pink flowers in summer; good for dried flower arrangements

Synonyms
Allium aflatunense misapplied
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, °Â±ð±ô±ô–d°ù²¹¾±²Ô±ð»å
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Pink Green
Autumn
Winter
Position
  • Full sun
Aspect

West–facing or ³§´Ç³Ü³Ù³ó–f²¹³¦¾±²Ô²µ

Exposure
Sheltered
Hardiness
H7
Botanical details
Family
Amaryllidaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
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

Plant range
Iran

How to grow

Cultivation

Grow in full sun and fertile well-drained soil. It is best to grow in containers where garden soil is heavy clay and prone to saturation over winter. See allium cultivation

Propagation

Propagate by seed when just ripe or in spring; or propagate by offsets which can be carefully detached by lifting the bulb after flowering has finished. See bulb propagation

Suggested planting locations and garden types
  • Cottage and informal garden
  • City and courtyard gardens
  • Gravel garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
  • Cut flowers
Pruning

No pruning required, other than to remove old flowered stems and foliage

Pests

May be susceptible to allium leaf miner and onion fly

Diseases

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

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