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Value-for-money

Alcea rosea Nigra - Hollyhock

Alcea rosea Nigra
Hollyhock

49 reviews
4,1/5
31 reviews
4 reviews
5 reviews
4 reviews
5 reviews

Unfortunately did not survive the heat of the summer... but I don't blame Promesses de Fleurs... I can't manage to grow hollyhocks at home...

Véro, 17/12/2023

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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.

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

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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.

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
4,1/5

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