Alcea is a genus of flowering plants in the family Malvaceae, commonly known as hollyhocks. These plants are characterized by their tall spikes of large, colorful flowers that bloom in summer. They are often grown in gardens for their ornamental value and can reach heights of up to 8 feet. Hollyhocks are biennial or perennial plants, meaning they can live for two years or more. They thrive in well-drained soil and full sun, making them popular choices for cottage gardens. The flowers come in various colors, including pink, red, yellow, and white, attracting pollinators like bees and butterflies.