Alcea rosea var. nigra, commonly known as Arabian Nights, is a captivating variety cherished for its dark and velvety blooms that add a touch of drama to the garden landscape. This biennial or short-lived perennial plant features tall, erect stems adorned with striking single or semi-double flowers in deep shades of maroon, burgundy, or nearly black. Its richly colored blossoms, set against a backdrop of lush green foliage, create a striking contrast that commands attention. Growing up to 6 feet (1.8 meters) in height, black hollyhocks add vertical interest to borders, cottage gardens, and mixed perennial beds. With its exquisite flowers and stately presence, Alcea rosea var. nigra infuses the garden with a sense of mystery and allure, making it a sought-after choice among gardeners looking to create a captivating and enchanting outdoor space. Zones 5-9
Germination
To germinate Alcea rosea var. nigra seeds, start by scarifying the hard seed coat to enhance water absorption and promote germination. This can be done by gently nicking the seed coat with a knife or rubbing it with sandpaper. After scarification, soak the seeds in room temperature water for about 12 to 24 hours to further soften the seed coat. Prepare a well-draining seed starting mix, such as a combination of peat moss and perlite, and fill a container with it. Plant the scarified seeds about 1/4 inch deep in the potting mix, spacing them apart to allow room for growth. Keep the soil consistently moist but not waterlogged by misting or watering lightly whenever the surface begins to dry out. Place the container in a warm location with indirect sunlight or partial shade, maintaining temperatures around 65-75°F (18-24°C). Germination typically occurs within 10-14 days, but it can take up to 3 weeks. Once the seeds have sprouted and developed several sets of true leaves, they can be transplanted into larger pots or directly into the garden, ensuring they receive adequate sunlight and water as they continue to grow.
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