Double Sky Blue Blooms
Produces densely layered flowers in soft sky-blue shades for an elegant garden display.
Estimated Delivery:Nov 23 - Nov 27
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Double Sky Blue Hollyhock is an ornamental flowering plant known for its tall flower spikes and densely layered, sky-blue blossoms. It adds vertical interest and soft color to cottage gardens, flower borders, fences, and landscape displays. Hollyhocks grow best in full sunlight, fertile soil, and well-drained growing conditions.
Produces densely layered flowers in soft sky-blue shades for an elegant garden display.
Develops upright flowering stems that add height and visual interest to garden borders.
Flowers during the growing season when provided with suitable sunlight, soil, and care.
Works well along fences, walls, and the back of ornamental flower borders.
| Scientific Name | Alcea rosea |
| Common Name | Double Sky Blue Hollyhock |
| Plant Family | Malvaceae |
| Plant Category | Flower; Ornamental Plant |
| Flower Color | Sky Blue |
| Flower Type | Double |
| Growth Habit | Tall, upright flowering plant |
| Life Cycle | Biennial or short-lived perennial, depending on growing conditions |
| Sunlight | Full sun |
| Soil Requirements | Fertile, moisture-retentive, well-drained soil |
| Watering | Water regularly while young and during prolonged dry periods |
| Planting Season | Spring or fall, depending on local climate |
| Germination Time | Approximately 10–21 days under suitable conditions |
| Germination Temperature | Approximately 65–75°F (18–24°C) |
| Mature Plant Height | Approximately 5–8 feet, depending on variety and growing conditions |
| Plant Spacing | Approximately 18–24 inches |
| USDA Hardiness Zones | Generally Zones 3–9; suitability varies with climate and variety |
| Garden Uses | Cottage gardens, borders, fences, walls, and cutting gardens |
Double Sky Blue Hollyhock Seeds can add height, texture, and distinctive double flowers to ornamental landscapes. With full sunlight, fertile soil, and appropriate care, these hollyhocks can create an attractive display along fences, garden borders, and cottage-style planting areas.
Learn about Double Sky Blue Hollyhock flowering, seed germination, and plant care.
Many hollyhocks flower in their second growing season because they are commonly grown as biennials. Some varieties may flower in the first year when started early under favorable conditions. Flowering time depends on the seed variety, planting date, and growing environment.
Plant hollyhocks in full sun and fertile, well-drained soil. Provide adequate spacing, water young plants regularly, and choose a sheltered location. Tall stems may need staking in windy areas to help prevent bending or damage.
Orange-brown spots on hollyhock leaves may indicate hollyhock rust, a common fungal disease. Remove affected leaves, discard infected plant debris, provide adequate spacing for airflow, and water near the soil rather than wetting the foliage. Avoid composting heavily infected material.