Alcea rosea var. nigra Heirloom with shimmering burgundy-black single flowers. Lasts 3–4 years in favorable conditions. Surface sow inside in April. Overly rich potting mixes will encourage damping off. May be the same black hollyhock grown for Thomas Jefferson at Monticello. Biennial, Zones 3-8. Especially attractive to pollinators.③
5127 Black Hollyhock
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Biennial to Zones 3, often reseeds. An old-time favorite for background color.
Culture: Needs staking. Cut flower stalk to induce rebloom. Likes full sun, lots of room, and moist soil. Seed may require alternate freezing and thawing to break dormancy. Start indoors in a 70° spot 2 months prior to transplanting.
All flowers are open-pollinated except where noted.
Days in parentheses after a variety indicate days to first bloom.
For the latest results of our germination tests, please see the germination page.