• Cardoon (Cynara cardunculus) medicinal herb seeds featuring a distinctive thistle-like garden plant with silvery-green foliage and purple flowers.
  • Cardoon (Cynara cardunculus) medicinal herb seeds featuring a distinctive thistle-like garden plant with silvery-green foliage and purple flowers.
  • Cardoon (Cynara cardunculus) medicinal herb seeds featuring a distinctive thistle-like garden plant with silvery-green foliage and purple flowers.
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Eden Valley Seeds

Cardoon Seeds – Cynara cardunculus Medicinal Herb and Garden Plant Seeds

Cardoon Seeds – Cynara cardunculus Medicinal Herb and Garden Plant Seeds

$16.99 USD
$16.99 USD
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Key Features

  • Plant Variety: Cardoon is a thistle-like perennial plant closely related to the globe artichoke.

  • Attractive Appearance: Produces large, deeply lobed, silvery-green leaves and striking purple thistle flowers.

  • Distinctive Growth: Develops tall, upright stems with an impressive architectural appearance.

  • Garden Uses: Suitable for vegetable gardens, herb gardens, cottage gardens, and ornamental landscapes.

  • Pollinator Appeal: Its purple flowers can attract bees and other beneficial pollinating insects.

Growing Benefits

  • Adds dramatic foliage and attractive flowers to home gardens.

  • Provides an interesting vegetable crop for adventurous home gardeners.

  • Creates beautiful structure in cottage and ornamental garden spaces.

  • Attracts pollinators when allowed to develop flowering heads.

  • Offers an enjoyable growing experience for gardeners exploring unusual plants.

Seed Specifications

Common Name: Cardoon, Artichoke Thistle, Cardoon Thistle

Botanical Name: Cynara cardunculus

Plant Type: Perennial herbaceous vegetable, commonly grown as an annual in colder climates.

Colors and Growth: Silvery-green foliage with purple flowers; typically grows around three to six feet tall.

Growing Requirements: Full sunlight, fertile and well-drained soil, and consistent moderate watering. Generally suited to USDA Zones seven through ten.

Growing Tips

  • Choose a sunny location with enough room for its large, spreading leaves.

  • Prepare fertile, well-drained soil enriched with mature compost before planting.

  • Keep the soil consistently moist during germination and early plant growth.

  • Remove weeds regularly and provide adequate spacing for healthy development.

Seed Storage

Store Cardoon seeds in a cool, dry, and dark location. Keep them inside an airtight container or sealed seed packet to protect them from moisture and heat. Label the container and avoid exposing seeds to direct sunlight. Proper storage helps maintain seed quality for future planting.

Unique Facts About Cardoon Seeds and Plants

  • Cardoon belongs to the Asteraceae family and is closely related to the globe artichoke.

  • Unlike globe artichokes, cardoon is traditionally cultivated mainly for its thick leaf stalks.

  • Its large silver-green leaves give it a distinctive appearance in ornamental gardens.

  • Mature flower heads produce purple blooms that are attractive to bees and other pollinators.

Growing Instructions

Planting Season: Cardoon grows best when planted during mild, cool-to-warm growing conditions. In warmer climates, sow during the cooler part of the growing season. Avoid extreme summer heat during early establishment.

Sowing: Sow seeds directly in prepared garden soil or start them in individual seed-starting pots. Starting indoors allows seedlings to develop before transplanting.

Sowing Depth: Plant seeds approximately one-quarter inch deep and cover lightly with fine soil.

Spacing: Allow around three to four feet between plants because mature cardoon plants develop large leaves and broad growth.

Sunlight: Select a location receiving full sunlight for most of the day. Adequate sunlight encourages strong stems and healthy foliage.

Soil: Grow in fertile, well-drained soil rich in organic matter. A slightly acidic to neutral soil is generally suitable. Avoid locations where water collects around the roots.

Watering: Water regularly to maintain evenly moist soil, particularly during germination and early growth. Once established, water when the upper soil begins to dry. Avoid waterlogging.

Germination: Seeds generally germinate within ten to twenty-one days under suitable conditions. Warm soil and consistent moisture help encourage successful germination.

Transplanting: If started indoors, transplant seedlings after they develop several true leaves and become strong enough to handle. Harden them gradually before moving them outdoors. Avoid disturbing their roots unnecessarily.

Fertilizing: Incorporate compost or well-rotted organic matter before planting. Apply a balanced vegetable fertilizer during active growth when needed.

Plant Care: Remove competing weeds, maintain consistent soil moisture, and allow enough room for mature foliage. Remove damaged leaves to maintain plant health. Provide support if tall flower stems become unstable.

Flowering and Maturity: Cardoon generally takes around one hundred and twenty to one hundred and fifty days to reach harvest maturity, depending on growing conditions and variety. Mature plants may produce purple thistle flowers if allowed to flower. In cooler climates, flowering and maturity may take longer.

Harvesting: The thick leaf stalks are traditionally harvested before flowering. Some gardeners blanch the stalks before harvesting to produce a milder flavor. Only use correctly identified, properly prepared plant parts for culinary purposes.