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Alcea rosea Nigra - Hollyhock

Alcea rosea Nigra
Hollyhock

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This plant carries a 12 months recovery warranty

More information

A lovely perennial with black-brown flowers.
Flower size
6 cm
Height at maturity
2 m
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -18°C
Soil moisture
Dry soil, Moist soil
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Recommended planting time March to May
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Flowering time July to September
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Description

Alcea rosea 'Nigra' is a beautiful variety of hollyhock with almost black flowers. 

 

Hollyhocks are a must-have in country gardens. They bear a continuous succession of flowers on their long stems. They are ideal for adding verticality to flower beds. They are a fairly short-lived perennial but they self-seed abundantly.

Plant it in a sheltered spot to prevent it from falling over. Very easy to grow, it prefers well-drained but fairly rich soil. It is extremely hardy.

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Alcea rosea Nigra - Hollyhock in pictures

Alcea rosea Nigra - Hollyhock (Foliage) Foliage

Flowering

Flower colour black
Flowering time July to September
Flower size 6 cm

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 2 m
Spread at maturity 30 cm
Growth rate fast

Botanical data

Genus

Alcea

Species

rosea

Cultivar

Nigra

Family

Malvaceae

Other common names

Hollyhock

Product reference76192

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Planting and care

Plant your hollyhock in a sunny location with well-draining and fairly fertile soil. It is highly resistant to drought and very hardy. It is susceptible to slugs and particularly sensitive to rust. Excess moisture should be avoided.

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Planting period

Recommended planting time March to May

Intended location

Suitable for Meadow
Type of use Back of border, Slope
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Planting density 9 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, well-draining and deep

Care

Pruning instructions Remove the faded flower stems in October.
Pruning Pruning recommended once a year
Pruning time October
Overwinter Can be left in the ground

Summer flowering perennials

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