Dahlia 'Dame Deirdre'

Dahlia ‘Dame Deirdre’

Semi-cactus dahlia

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 not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Dahlia 'Dame Deirdre'
  • Common name: Semi-cactus dahlia
  • Plant Type: Perennial
Flower colour:

Orange

Yellow

Foliage colour:

Green

Dahlia ‘Dame Deirdre’ bears vibrant semi-cactus flowers from summer to mid autumn. It is perfect for growing in a mixed herbaceous border and makes an excellent cut flower.

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The flower was bred by dahlia breeder Ken Stock and is grown by the National Dahlia Collection. It’s a charity dahlia – a percentage of the sale of each cutting is donated to the Royal Medical Benevolent Fund.

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For best results, grow Dahlia ‘Dame Deirdre’ in full sun in fertile, well-drained soil. Deadhead regularly and feed with a potash-rich fertiliser to prolong flowering. Lift tubers after the first frosts and store them in a cool, dry situation until March. Then pot them up and keep them in a temperate greenhouse before planting out in late May.

How to grow Dahlia 'Dame Deirdre'

  • Plant size

    1.5m height

    1.5m spread

  • Aspect

    South facing, west facing

  • Position in border

    Middle

  • Sun exposure: Full sun
  • Hardiness: Tender
  • Soil type: Well drained / light / sandy / clay / heavy / moist

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 Plant in March

Do Plant in April

Do Plant in May

Do not Plant in June

Do not Plant in July

Do not Plant in August

Do not Plant in September

Do not 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 not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does flower in October

Plant does not flower in November

Plant does not flower in December

Take cuttings
Take cuttings

Do not Take cuttings in January

Do not Take cuttings in February

Do Take cuttings in March

Do Take cuttings in April

Do Take cuttings in May

Do not Take cuttings in June

Do not Take cuttings in July

Do not Take cuttings in August

Do not Take cuttings in September

Do not Take cuttings in October

Do not Take cuttings in November

Do not Take cuttings in December

Dahlia 'Dame Deirdre' and wildlife

Dahlia 'Dame Deirdre' has no particular known value to wildlife in the UK.

Is Dahlia 'Dame Deirdre' poisonous?

Dahlia 'Dame Deirdre' can be toxic.

Toxic to:

Toxic to Cats

Toxic to Dogs

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Dahlia 'Dame Deirdre'