Hollyhock seed packet with botanical illustration on a clean background
Full hollyhock plant showing tall spires of flowers growing in a sunny garden border
Back of hollyhock seed packet with botanical instructions on a clean background
Side of hollyhock seed packet with botanical illustration on a clean background
Tall hollyhock flowers blooming on upright stems with layered petals in a cottage garden border

Hollyhock 'Nigra' Seeds

Alcea rosea 'nigra'

Tall, strong, dark-tousled blooms. Glossy, deep chocolate maroon flowers. Hollyhock 'Nigra' is a modern twist to a cottage garden style.

Approx 30 seeds

  • Cut Flowers
  • Pollinator-Friendly
  • Compact for Pots
  • Low Maintenance

Hollyhock 'Nigra' Seeds – Quick Growing Guide

Hollyhock 'Nigra' seeds produce striking black flowers ideal for adding height and drama to borders. Sow from March to September, either directly outdoors or in pots. These biennial flowers thrive in full sun with regular watering and are excellent as cut flowers or garden accents.

How to Sow, Grow and Harvest Hollyhock 'Nigra' Seeds

  • Sow:March–September, direct or in pots
  • Germination:7–14 days
  • Grow:Full sun, well-drained soil, support tall stems
  • Water:Keep soil moist but not waterlogged
  • Harvest:Cut flowers in summer when blooms open
  • Best for:Beds, borders, cut flower gardens

Grow in Your Garden

Hollyhock 'Nigra' – Deep Chocolate Maroon Blooms

Reviews

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5.0
Based on 2 reviews
100% would recommend this product
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2 reviews
21 Feb 2026

Bought Chamomile

I haven't planted the seeds yet but if they're as good as the ones I've brought in the past I'll be more than happy.

Fred J.Verified buyer
21 Feb 2026

LOVED

Got sent them as a gift and loved the instructions on sowing - very helpful

Posey C.Verified buyer