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Product Description
Heirloom Cardo Gigante flowers are striking, large blooms that thrive in shaded garden areas, adding height and visual interest to beds, borders, and containers. This easy-to-grow heirloom variety is perfect for home gardens seeking low-maintenance, bold flowering plants. Its long-lasting flowers attract pollinators and create a dramatic display throughout the growing season.
Features:
Heirloom Cardo Gigante variety
Produces large, long-lasting blooms
Shade-tolerant and low-maintenance
Ideal for garden beds, borders, and containers
Attracts pollinators and enhances garden aesthetics
Specifications:
Plant Type: Perennial flowering plant
Height: 4–8 feet
Bloom Time: Summer
Light Requirements: Partial shade to full sun
Soil Preference: Well-draining garden soil
Zones: USDA hardiness zones 5–9
Planting Season: Spring after last frost
Planting & Sowing Instructions:
Indoor Sowing: Sow seeds in small pots with well-draining soil 6–8 weeks before the last frost. Lightly press seeds into soil and maintain even moisture. Germination usually occurs within 10–14 days.
Transplanting: Move seedlings outdoors after frost risk has passed. Space plants 18–24 inches apart.
Direct Sowing: Sow seeds directly into prepared garden soil after the last frost. Cover lightly and water gently.
Care Tips: Keep soil evenly moist without overwatering. Remove spent flowers to encourage continuous blooming. Mulching helps retain soil moisture and regulate soil temperature.
Drought tolerant once established, low maintenance
Heirloom Cardo Gigante
Cynara cardunculus
Seed Names
Heirloom Cardo Gigante
Seed Type
Heirloom, GMO free, open pollinated
Heirloom Cardo Gigante, commonly known as Giant Cardoon, is a bold, architectural plant prized for its massive silvery foliage and striking purple thistle-like flowers. Ideal for borders, edible landscapes, and statement garden beds, this heirloom, GMO-free variety thrives in full sun to partial shade and well-drained soil. Known for its shade tolerance, low-maintenance care, and dramatic presence, Cardo Gigante adds a Mediterranean flair to home gardens.
Planting Information
Light Requirement
Full sun to partial shade
Planting Depth
1/4 inch
Sowing Method
Start indoors or direct sow
Plant Spacing
24–36 inches
Days to Maturity
120–180 days
Soil Preparation
Soak seeds 12–24 hours before sowing (recommended)
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