Alcea rosea 'Nigra'

hollyhock 'Nigra'
'Nigra' is a vigorous biennial or short-lived perennial, to 2m tall, with shallowly-lobed, rounded leaves and long erect racemes of single, open funnel-shaped, deep chocolate-maroon flowers
Size
Ultimate height
1.5–2.5 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green | |||
---|---|---|---|---|
Summer | Purple | Green | ||
Autumn | Green | |||
Winter |
Position
- Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Malvaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- Genus
Alcea are robust biennials or short-lived perennials with showy funnel-shaped flowers borne in tall, erect racemes in summer
- Name status
Accepted
How to grow
Cultivation
Grow in well-drained, moderately fertile soil in full sun. Stake (see staking perennials) on exposed sites
Propagation
Propagate by seed sown in gentle heat in mid-winter or in-situ in spring
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Wall side borders
- Flower borders and beds
Pruning
Cut back after flowering
Pests
Young growth can be attacked by slugs and caterpillars; flea beetles occasionally causes significant defoliation
Diseases
Susceptible to a hollyhock rust
Get involved
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