Hollyhock Seeds – Double Sky Blue
Hollyhock Seeds – Double Sky Blue
Hollyhock Seeds – Double Sky Blue
Hollyhock Seeds – Double Sky Blue

Double Sky Blue Hollyhock Seeds – Flower Plant

Suitable for home gardening use
$16.99 USD
$16.99 USD
10% OFF Buy 2 Seed Packs
15% OFF Buy 4 Seed Packs
25% OFF Buy 10 Seed Packs
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Product description

Double Sky Blue Hollyhock Seeds

Double Sky Blue Hollyhock is a striking biennial or short-lived perennial prized for its tall flower spikes covered with fully double sky-blue blossoms. Its elegant vertical growth makes it an excellent choice for cottage gardens, borders, fences, walls, and mixed perennial beds. Thriving in full sun with fertile, well-drained soil, this ornamental plant produces abundant blooms throughout the summer season while attracting pollinators.

Flower Seed
Biennial
Double Blooms
Pollinator Friendly

Key Features

Double Sky Blue Flowers

Produces large, fully double blooms in soft sky-blue shades for an elegant summer display.

Impressive Height

Develops tall flowering spikes that create dramatic vertical interest in ornamental landscapes.

Summer Blooming

Provides abundant blossoms throughout the warm growing season under suitable conditions.

Classic Cottage Garden Plant

Ideal for borders, fences, walls, mixed beds, and traditional cottage-style landscapes.

Product Highlights

Double sky-blue blooms
Tall flowering spikes
Cottage garden favorite
Summer flowering
Pollinator friendly
Vertical landscape accent
Full sun
Rich, well-drained soil

Specifications

Scientific Name Alcea rosea
Common Name (US) Double Sky Blue Hollyhock
Seed Type Flower Seed
Growth Habit Upright Biennial or Short-Lived Perennial
USDA Zones 3–9
Planting Season Spring or Fall
Growing Season Late Spring Through Summer
Sowing Season Spring or Fall
Sowing Months March–May, September–October
Germination Time 10–21 Days
Germination Conditions 65–75°F (18–24°C); Keep Soil Evenly Moist
Sunlight Full Sun
Soil Rich, Well-Drained Soil
Watering Moderate; Water Regularly During Active Growth
Mature Size 5–8 ft Tall × 18–24 in Wide
Plant Spacing 18–24 in Apart

Growing Guide

Step 1: Sow seeds directly outdoors or indoors in moist seed-starting mix.
Step 2: Maintain even soil moisture and warm temperatures until germination occurs.
Step 3: Transplant seedlings into fertile, well-drained soil after they become established.
Step 4: Grow in full sun with adequate spacing and provide support if flower spikes become tall.
Step 5: Water during extended dry periods and remove spent flower spikes after blooming to maintain plant health.

Perfect For Cottage Gardens, Borders, Fences, Garden Walls And Mixed Perennial Beds

Double Sky Blue Hollyhock brings graceful vertical beauty with tall flowering spikes and elegant double blooms. Its long-lasting summer display and classic cottage garden appeal make it an outstanding choice for ornamental landscapes and pollinator-friendly planting designs.