Alcea rosea 'Nigra'

25% OFF seed packets
approx 50 seeds £2.79 £2.09
in stock (shipped within 2-3 working days)
Quantity 1 Plus Minus
Buy Alcea rosea 'Nigra' hollyhock: Tall stems bearing near-black flowers

  • Position: full sun
  • Soil: moderately-fertile, well-drained soil
  • Rate of growth: fast-growing
  • Flowering period: June to August
  • Hardiness: fully hardy

    Towering spires open from the base upwards to reveal yellow-centred, chocolate-maroon flowers. Perfect for providing vertical interest in a sunny, well-drained border, hollyhocks are traditionally associated with cottage gardens, however the dramatic colouring of this variety works equally well in contemporary planting schemes.

    Please note: Rust is a very common problem on hollyhocks, and unless the plants have been sprayed intensively with fungicides, it is rare to see one that will not have been affected. We keep beehives here on our nursery, so we try to keep the use of chemicals to a minimum - and in our experience, while hollyhock rust may look a little unsightly towards the end of summer, it rarely has an impact on the plants' impressive performance.

  • Garden care: Under glass, sow seeds 2mm deep in a good quality seed compost and keep moist (but not wet) until they germinate. Thin out when they are large enough to handle and pot on. Gradually harden off before planting out after all risk of frost has passed. Alternatively, sow later in the year directly into a well-prepared bed. Seeds sown in autumn have a better chance of producing flowers in their first summer. Others usually won't flower until the following year.

  • Sow: April-September

  • Flowering: June-August

  • Approximate quantity: 50 seeds.

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Eventual height & spread

Eventual height and spread
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When should I plant Delphiniums, Foxgloves and Hollyhocks, and what will I gett in a pot? Hi there, I have a brand new, small, garden (approx. 36' by 30') and am in the process of creating borders. I'm aiming for fairly deep borders as I would like loads of cottage garden flowers. I am thinking of having a few evergreen / deciduous shrubs here and there to form some permanent interest. My gardening knowledge is more or less at the 'beginner' stage so I need some advice please. Is it okay to plant the shrubs now as long as the ground isn't frozen? When should I plant the perennials and annuals? Spring time? When I order for example Hollyhocks, Delphiniums and Foxgloves, and what do I get in the pot? Is it one plant that will produce one flowerhead? If I wanted to make a big colour impact, would I need to order loads of each plant? I look forward to hearing from you. Many thanks, Lynn

Wilson Lynn

Hello Lynn, You can plant any fully hardy plant at any time of the year as long as the ground is not frozen, but the ideal times are spring or autumn. Annuals only live for 1 year, some will flower in winter, while others flower in summer, so the planting time will depend on what type they are. As for the herbaceous perennials, these can be planted anytime as long as they are hardy, you will get 1 plant per pot. Each plant and species will produce flowers in different way. The ones you mention will generally produce 1 main flowerspike and a couple of smaller side-shoots, and if you cut them back when they start to fade you can often encourage a second flush later in the year. Finally then, if you want big impact, then yes you will need a lot of plants. I hope this helps. Helen Plant Doctor

Wilson Lynn

I have no flowers on my Hollyhock? I have a very leafy, healthy Hollyhock, but it does not appear to be going to flower. Have I used too much of the wrong fertiliser?? Is it possible to move it? Thank you Janet


Hello Janet, There are a number of reasons why plants don't flower including too much shade, not enough water or nutrients, or it can simply be concentrating on putting on new leaf growth instead of focusing its energies on producing flowers. I am not really sure why yours has not produced buds, but you can often give them a bit of a push by feeding with a high potash fertiliser.

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