Alcea 'Nigra'
Alcea 'Nigra'
Alcea 'Nigra'
Alcea 'Nigra'
Alcea 'Nigra'
Alcea 'Nigra'
Alcea 'Nigra'

Alcea 'Nigra'

"Black hollyhock"

Alcea 'Nigra'

5 bare roots — £3.95

Order today, receive in May
Delivery schedule

Orders placed before 1 March 2024
You can expect your order in March 2024

Orders placed 1 March - 15 April 2024
You can expect your order in March/April 2024

Orders placed 16 April - 15 May 2024
You can expect your order within 10 business days

Free delivery on UK orders over £50
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UK orders over £50
Free shipping

UK orders under £50

Northern Ireland orders under £50

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Plant Alcea 'Nigra' in your garden and look forward to dramatic results. Reaching up to 2.5m tall once established, this impressive plant, commonly known as black hollyhock, towers over the garden with imposing stature. With a narrow habit, you don’t need to have a large space to enjoy these almighty flower stems, Alcea rosea 'Nigra' will happily nestle in among other plants or into narrow spaces in the cosiest of cottage gardens or small urban suntraps. Near-black, saucer-shaped flowers climb the vertical stems, opening gradually to reveal shimmering, lustrous petals which are as fine as tissue.

Flowering from early summer to autumn, Alcea 'Nigra' is a truly captivating perennial which brings a certain grandeur to the back of borders. Although quintessentially ‘cottage garden’ in style, this dark-flowered hollyhock is just as good in contemporary planting schemes. Wildlife friendly gardeners will be pleased to know that this is a favourite with pollinators too. Black hollyhocks are short-lived perennials, so allow the seed pods to ripen and scatter the seeds around—they naturalise beautifully and easily. Plant Alcea rosea 'Nigra' in a sunny spot with shelter from strong winds.

Key features

  • Comes back every year

  • Attractive to wildlife

  • Loved by pollinators

  • Thrives well in full sun

  • In peat-free compost

  • Low maintenance

  • Fully hardy

  • Rodent resistant

Specs & details

  • Botanical name

    Alcea rosea 'Nigra'

  • Flower colour

    Black, near-black, brown

  • Plant size


  • Established height


  • Established spread


  • Plant spacing

    5 plants per m2

  • Leaf colour


  • Habit


  • Life cycle


  • Hardiness

    Fully hardy

  • Years to establish

    1-2 years

  • Sunlight

    Full sun

  • Position


  • Suitable for

    Wildlife gardens
    Cottage gardens
    Low maintenance gardens

  • Soil acidity


  • Soil moisture

    Free draining

  • Soil type

    Loam-based compost

  • Growing skill

    Easy to grow

  • Scented


  • Pollinator-friendly


  • Mouse resistant


  • Rabbit resistant


  • Deer resistant


  • Toxicity

    No report

Plant calendar

  • Planting
  • Flowering

Useful information

    • Soak your Alcea 'Nigra' roots in water for 3-6 hours prior to planting.

    • Plant your "Black hollyhock" bare roots into temporary pots with a multipurpose compost in spring and grow-on in a sheltered spot outdoors.

    • Choose a pot which comfortably fits the bare roots. Some have a noticeable crown which should be just below the soil surface with any top growth exposed.

    • Plant out into borders or permanent containers in late spring or early summer once in full growth. Choose a position in sun or shade depending on the variety.

    Read all planting & care instructions

  • Orders placed before 1 March 2024
    You can expect your order in March 2024

    Orders placed 1 March - 15 April 2024
    You can expect your order in April 2024

    Orders placed 16 April - 15 May 2024
    You can expect your order within 10 business days

Perennials in 1 minute

The beauty of perennial plants doesn’t just lie in their long-lasting flowers and sturdy, resilient nature, but it’s their sheer determination to keep on coming back stronger every year —in year one they’re good, but in future years they’re even better!

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