Black Hollyhock

Black Hollyhock

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 by Thomas Jefferson at Monticello. Biennial, Zones 3-8. Especially attractive to pollinators.


5127 Black Hollyhock
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Additional Information

Hollyhock

An old-time favorite for background color, often reseeds.

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. ~105 seeds/g.

Flowers

All flowers are annuals except where noted. All flowers are open-pollinated except where noted.

Days in parentheses after a variety indicate days to first bloom.