Hollyhock (Alcea rosea 'Nigra')

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Biennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Moderately alkaline (7.9 – 8.4)
Minimum cold hardiness: Zone 2 -45.6 °C (-50 °F) to -42.8 °C (-45°F)
Maximum recommended zone: Zone 9a
Plant Height: 5-8 feet
Plant Spread: 12-24 inches
Leaves: Deciduous
Flowers: Showy
Flower Color: Other: Dark purplish-black. Also described as "chocolate colored"
Bloom Size: 3"-4"
Flower Time: Summer
Underground structures: Taproot
Uses: Dye production
Culinary Herb
Medicinal Herb
Cut Flower
Will Naturalize
Edible Parts: Stem
Eating Methods: Tea
Culinary Herb/Spice
Wildlife Attractant: Butterflies
Resistances: Rabbit Resistant
Propagation: Seeds: Provide light
Needs specific temperature: For best results, sow early summer. May also be started late summer or early fall for bloom the next season.
Depth to plant seed: Press lightly into soil surface. Do not cover.
Sow in situ
Propagation: Other methods: Cuttings: Root
Pollinators: Self

Early morning sun behind the bloom brought out some nice colors.

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Posted by BookerC1 (Mackinaw, IL - Zone 5a) on Jan 10, 2012 6:57 PM

Information from Chocolate Flower Farm seeds:
Outdoors: For best results, sow seed in ground in early summer. Seeds started in early spring or started indoors early tend to lose their perennial habit and are more susceptible to disease. May also sow in late summer or early fall for bloom the next season

Indoors: Sow 6-8 weeks before last average day of frost (to treat as an annual that blooms the first season.) Seed requires light to germinate. Press lightly into soil surface and keep moist.

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Discussion Threads about this plant
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