Wild Blue Flax Seeds
$5.95 CAD
Oak Summit Nursery
Black Hollyhock Seeds
Black Hollyhock Seeds
Pack contains: 20+ seeds
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$5.95 CAD
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Black Hollyhock (Alcea rosea 'Nigra') is a biennial or short lived perennial with tall flower spikes. Its deep maroon flowers appear nearly black and have a contrasting pale centre.
Plants flower in mid to late summer. Hollyhock rust can mark the leaves in humid conditions, while the flowers remain useful to bees and other pollinators.
Cold Hardiness Zone: 3
Mature Size: 5 to 8 ft
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Growing details
- Hardiness reference
- USDA zones 5a-9b
- Origin and status
- Native to Turkey and western Asia; not native to Manitoba
- Growing site
- Full sun; well-drained clay, loam or sand; moist to occasionally dry; broad pH tolerance
- Spread
- Can perpetuate itself by seed; self-seeding is not root suckering
Cold hardinessZone 3 · Canadian maps for this plant
Zone 3 and warmer
The map shows minimum winter hardiness. Soil, moisture and summer warmth also affect how a plant grows.
About these maps
Climate: Natural Resources Canada, 1991–2020. Provincial distribution: VASCAN via retained botanical research. Province outlines: Natural Earth, public domain.
Open Government Licence – Canada