Hollyhock - Black (Alcea rosea)

Biennial Flower | Edible Blooms | Cottage Garden Classic

Hollyhock (Alcea rosea) is a striking, old-fashioned biennial admired for its tall flower spikes and large, silky blooms. Reaching 2–3 m (6–10 ft) in height, it brings vertical drama, colour, and timeless charm to gardens, fences, and walls.

Beautiful & Edible Flowers

Beyond their ornamental appeal, hollyhock flowers are fully edible. The large, soft petals can be:

• Stuffed with savoury or sweet fillings

• Used like a natural flatbread or tortilla to scoop up stews, beans, curries, or other saucy dishes

• Added fresh to salads or used as decorative garnishes

Their mild flavour and flexible texture make them a creative, hands-on edible flower for curious cooks and gardeners.

Life Cycle

Hollyhock is typically grown as a biennial:

• First year: Plants form a strong rosette of leaves and develop a deep taproot

• Second year: Tall flowering stalks emerge, blooming abundantly before setting seed

Once established, hollyhocks often self-seed, creating a natural, long-term presence in the garden.

Growing & Care

• Sowing: Direct sow in spring or late summer, or start indoors for transplanting

• Light: Full sun

• Soil: Well-drained soil; tolerates poorer soils once established

• Water: Moderate; drought tolerant after establishment

• Spacing: Allow good air circulation

Because of their deep taproot, young plants transplant best while still small.

Ecological & Garden Benefits

• Pollinator friendly: Attracts bees, butterflies, and other beneficial insects

• Vertical structure: Ideal for the back of beds, against fences or walls

• Cold hardy: Suitable for a wide range of temperate climates

• Self-seeding: Helps maintain a continuous presence without replanting

Good airflow helps reduce the risk of rust, a common hollyhock issue.

Why Grow Hollyhock?

• Large, beautiful, edible flowers

• Classic biennial with generous self-seeding

• Supports pollinators

• Adds height, colour, and old-world charm

• Blends beauty with practical, edible gardening

Hollyhock is a celebration of abundance, beauty, and usefulness — a plant that feeds both the eyes and the table.

At least 50 seeds per packet.