Hollyhock Seeds – Double
Hollyhock Seeds – Double
Hollyhock Seeds – Double
Hollyhock Seeds – Double

Double 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 Hollyhock Seeds

Double Hollyhock is a classic flowering biennial or short-lived perennial admired for its tall flower spikes covered with large, fully double blooms in a wide range of vibrant colors. Ideal for cottage gardens, borders, fences, and cutting gardens, this ornamental plant thrives in full sun and fertile, well-drained soil. Its impressive height and long-lasting blooms create dramatic vertical interest throughout the summer season.

Flower Seed
Biennial
Double Blooms
Cottage Garden Favorite

Key Features

Large Double Flowers

Produces densely layered blooms arranged along tall flower spikes for an eye-catching garden display.

Impressive Vertical Growth

Develops sturdy upright stems that add height and structure to borders and landscape plantings.

Extended Summer Bloom

Flowers continuously through the warm season, providing long-lasting ornamental interest.

Excellent Garden Accent

Ideal for cottage gardens, back borders, fence lines, and fresh cut flower arrangements.

Product Highlights

Fully double blooms
Tall flowering spikes
Summer flowering
Pollinator friendly
Cottage garden favorite
Cut flower suitable
Full sun
Well-drained fertile soil

Specifications

Scientific Name Alcea rosea
Common Name (US) Double Hollyhock
Seed Type Flower Seed
Growth Habit Biennial or Short-Lived Perennial
USDA Zones 3–9
Planting Season Spring or Fall
Growing Season Late Spring Through Summer
Sowing Season Spring or Late Summer
Sowing Months March–May, August–September
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 Dry Periods
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 start indoors 6–8 weeks before the last frost.
Step 2: Cover seeds lightly with soil and keep the growing medium consistently moist.
Step 3: Transplant seedlings into fertile, well-drained soil in a sunny location.
Step 4: Provide support for taller flower spikes if growing in exposed garden locations.
Step 5: Remove spent flower stalks after blooming to maintain a tidy garden appearance.

Perfect For Cottage Gardens, Borders, Fence Lines, Cutting Gardens And Landscape Displays

Double Hollyhock combines towering flower spikes with lush double blooms to create a timeless cottage garden display. Its impressive height, vibrant seasonal flowers, and adaptability make it an excellent choice for adding dramatic vertical color to ornamental landscapes.