Best alliums to grow - Allium cernuum

Allium cernuum

Nodding onion

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does flower in June

Plant does flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Allium cernuum
  • Common name: Nodding onion
  • Family: Amaryllidaceae
  • Plant Type: Bulb
Flower colour:

Pink

Foliage colour:

Green

Allium cernuum is a clump-forming allium, bearing open clusters of pink, nodding flowers with protruding yellow stamens. It’s an extremely attractive variety and is easy to grow. Like all alliums, its blooms are attractive to bees and other pollinators. It’s perfect for growing in a mixed herbaceous border or in drifts as part of a prairie scheme.

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Grow Allium cernuum in moist but well-drained soil in full sun. Don’t allow the soil to become wet in winter. Divide and replant congested clumps in autumn or spring.

How to grow Allium cernuum

  • Plant size

    50cm height

    10cm spread

  • Aspect

    South facing, west facing

  • Position in border

    Front, middle

  • Sun exposure: Full sun
  • Hardiness: Hardy
  • Soil type: Acidic / chalky / alkaline / well drained / light / sandy

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do not Plant in May

Do not Plant in June

Do not Plant in July

Do not Plant in August

Do Plant in September

Do Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does flower in June

Plant does flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Divide
Divide

Do not Divide in January

Do not Divide in February

Do Divide in March

Do Divide in April

Do not Divide in May

Do not Divide in June

Do not Divide in July

Do not Divide in August

Do Divide in September

Do Divide in October

Do not Divide in November

Do not Divide in December

Collect seeds
Collect seeds

Do not Collect seeds in January

Do not Collect seeds in February

Do not Collect seeds in March

Do not Collect seeds in April

Do not Collect seeds in May

Do not Collect seeds in June

Do not Collect seeds in July

Do not Collect seeds in August

Do Collect seeds in September

Do Collect seeds in October

Do not Collect seeds in November

Do not Collect seeds in December

Allium cernuum and wildlife

Allium cernuum is known for attracting bees, beneficial insects, butterflies​/​moths and other pollinators. It has nectar/pollen rich flowers.

Attractive to Bees

Attractive to Beneficial insects

Does not attract Birds

Attractive to Butterflies​/​Moths

Attractive to Other pollinators

Is Allium cernuum poisonous?

Allium cernuum can be toxic.

Toxic to:

Toxic to Cats

Toxic to Dogs

Toxic to Horses

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Livestock

No reported toxicity to People