Black Hollyhock, Alcea rosea var. nigra Seeds – Arabian Nights Flowering Plant

Black Hollyhock (Alcea rosea var. nigra), commonly known as Arabian Nights Hollyhock or Nigra Hollyhock, is a tall ornamental flowering plant belonging to the Malvaceae family, also known as the mallow family. This distinctive variety is recognized for its deep chocolate-maroon to nearly black flowers, broad green foliage, and impressive upright flowering stems.

The Arabian Nights Hollyhock produces single, open, funnel-shaped blossoms with dark, velvety-looking petals that create a striking contrast against its green leaves. Under suitable lighting, the flowers display rich burgundy and maroon tones, giving them their characteristic almost-black appearance.

Alcea rosea var. nigra is commonly cultivated as a biennial or short-lived perennial. Its tall growth habit and dramatic flower color make it suitable for cottage-style gardens, ornamental flower borders, traditional garden landscapes, and flowering plant collections.

During the growing season, the plant develops broad, rounded leaves and sturdy upright stems. As flowering begins, blossoms emerge along elongated flower spikes, creating vertical interest in garden planting arrangements.

Black Hollyhock seeds provide gardeners with an opportunity to grow this distinctive dark-flowering variety from seed. With suitable sunlight, well-drained soil, and appropriate care, the plants can develop into attractive flowering specimens. 

• Botanical Name: Alcea rosea var. nigra

• Common Names: Black Hollyhock, Arabian Nights Hollyhock, Nigra Hollyhock

• Plant Family: Malvaceae

• Plant Type: Biennial or short-lived perennial flowering plant

• Growth Habit: Tall, upright, and columnar

• Foliage: Broad, rounded green leaves with shallow lobes

• Leaf Texture: Soft, slightly textured foliage

• Flower Color: Deep chocolate-maroon, burgundy-black, or nearly black

• Flower Appearance: Single, open, funnel-shaped blossoms

• Flowering Season: Generally summer, depending on local growing conditions

• Mature Height: Approximately 1.5–2.5 meters under suitable conditions

• Plant Spread: Approximately 0.5–1 meter

• Stem Characteristics: Sturdy, upright flowering stems

• Sunlight Requirements: Full sun

• Soil Preference: Moderately fertile, well-drained garden soil

• Watering Requirements: Consistent moisture during establishment

• Growing Environment: Temperate outdoor gardens and suitable cool-season planting areas

• Garden Uses: Cottage gardens, ornamental borders, flowering backgrounds, fence-line plantings, and landscape gardens

Arabian Nights Black Hollyhock develops into a tall flowering plant with an upright growth habit and broad foliage. During its early growth, the plant generally forms a leafy basal rosette before producing elongated flowering stems.

The leaves are large, rounded to heart-shaped, and commonly feature shallow lobes with gently toothed margins. Their green coloring creates an attractive background for the dark flowers that develop later in the growing cycle.

The flowers are the most recognizable characteristic of Alcea rosea var. nigra. Each blossom features broad, single petals arranged in an open, funnel-like formation.

The petals typically display deep maroon, burgundy, or chocolate-colored tones that may appear nearly black under certain lighting conditions. The contrasting central floral structures contribute to the distinctive appearance of each blossom.

Flowers develop along tall, upright spikes, with blossoms opening progressively along the stems. This arrangement creates a vertical flowering display that can provide seasonal interest in garden borders and ornamental landscapes.

Following flowering, the plant develops rounded seed-bearing structures typical of hollyhocks. Mature plants may self-seed when environmental conditions are suitable.

As a biennial or short-lived perennial, Arabian Nights Hollyhock may develop foliage during its initial growing season and flower during a subsequent season. Flowering behavior can vary depending on sowing time, climate, and plant development.

• Select a planting location with full sunlight and well-drained soil.

• Provide moderately fertile soil to support early plant development.

• Maintain consistent moisture during germination and seedling establishment.

• Avoid prolonged waterlogging around developing roots.

• Allow sufficient spacing for the plant's broad foliage and tall flowering stems.

• Gradually acclimate indoor-grown seedlings before transplanting outdoors.

• Avoid unnecessary disturbance to established root systems.

• Water near the soil surface when practical to minimize prolonged wetness on foliage.

• Provide support for tall flowering stems in exposed or windy locations.

• Remove faded flowers when appropriate to maintain a tidy garden appearance.

• Leave selected mature seed heads in place if natural reseeding is desired.

• Monitor self-seeding where unwanted plant spread needs to be controlled.

• Remove spent flowering stems after the flowering season when appropriate.

• Maintain adequate airflow between neighboring plants.

• Consider local temperatures and seasonal conditions when choosing sowing dates.

• Allow sufficient time for plants to establish before expecting mature flowering displays.