Dichelostemma congestum

Dichelostemma congestum

Ookow

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 flower in May

Plant does flower in June

Plant does not 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: Dichelostemma congestum
  • Common name: Ookow
  • Family: Liliaceae
  • Plant Type: Bulb
Flower colour:

Purple

Foliage colour:

Green

Native to Western USA and similar to alliums, ookow, Dichelostemma congestum, bears tight, long-lasting heads of pretty purple flowers on wiry stems. Like alliums it thrives in full sun and well-drained soil, but has grassy foliage, which starts to die down as the flowers form. 

Advertisement

Grow Dichelostemma congestum in a sheltered, sunny spot in well-drained soil. Be careful when cutting the flowers as the sap can irritate the skin. Not fully hardy, bulbs may need a protective mulch laid over them in winter in colder regions, or simply dig up and overwinter in a pot in a cool greenhouse.

How to grow Dichelostemma congestum

  • Plant size

    90cm height

    30cm spread

  • Aspect

    South facing, west facing

  • Position in border

    Middle

  • Sun exposure: Full sun
  • Hardiness: Hardy, frost hardy
  • Soil type: 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 flower in May

Plant does flower in June

Plant does not 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 not Divide in March

Do not 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

Dichelostemma congestum and wildlife

Dichelostemma congestum is known for attracting bees. It nectar-pollen-rich-flowers.

Attractive to Bees

Does not attract Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Does not attract Other pollinators

Is Dichelostemma congestum poisonous?

Dichelostemma congestum can be toxic. Its sap is toxic.

Toxic to:

Toxic to Cats

Toxic to Dogs

Toxic to People

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Horses

No reported toxicity to Livestock