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Allium in the GardenTags plant encyclopedia

Allium

 

Allium

Allium plants chosen for garden cultivation have terminal umbels of brightly coloured flowers, are hardy and easy to grow. The foliage varies from the rolled-round leaves of garden onions and chives to the broad, oval leaves of wild garlic. Most species have a typical onion smell. Alliums do best in well drained soil, open to the sun. Some dwarf species can be grown as pot plants if kept in a cold greenhouse or frame until nearly in flower.

 
plant Features
  • Allium likes full sun

    Full sun

  • Allium likes occasional watering

    Occasional watering

  • Allium is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Allium likes free draining and fertile

    Free draining and fertile

 
Similar plants are available to buy from 3 store(s) in the UK
 
plant information

Common name

Allium

Latin name

Allium

type

Bulb

family

Amaryllidaceae

ph

5.0 - 7.0 Acid - Neutral

  • Light

    Allium likes full sun

    Full sun

  • Frost

    Allium is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Allium likes free draining and fertile

    Free draining and fertile

  • Water

    Allium likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Allium is 0.40meters x 1.30meters 0.40 M 1.30 M

Allium

Allium plants chosen for garden cultivation have terminal umbels of brightly coloured flowers, are hardy and easy to grow. The foliage varies from the rolled-round leaves of garden onions and chives to the broad, oval leaves of wild garlic. Most species have a typical onion smell. Alliums do best in well drained soil, open to the sun. Some dwarf species can be grown as pot plants if kept in a cold greenhouse or frame until nearly in flower.


Planting

From Early Autumn TO Mid Autumn

Alliums do best in well drained soil in full sun. Plant smaller types among alpine plants, the others, between low growing shrubs or herbaceous plants. Plant in mid to late autumn covering the bulbs to 3 or 4 times their own depth and leave untouched for several years until the clumps are so thick that flowering is stifled, and then divide the clumps.

 

Flowering Season

From Early Summer TO Mid Summer

Most allium varieties flower from early to mid-summer.

 

Propagation by division.

From Early Spring TO Late Autumn

Species which multiply rapidly can be split in the autumn or as growth starts in the spring.. Replant both spring and autumn-divided plants immediately and keep the soil moist.

 

Propagating by offsets

From Early Autumn TO Mid Autumn

Alliums very often produce off-sets - little immature bulbs at the side of the bulb. In Autumn the bulb can be lifted and the offsets gently removed and replanted.

 
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