- 120 days.
- Tender perennial; treat as annual in cold climates.
- Widely grown in Europe for the delicious thick stalks.
- Sow Porto Cardoon in April; blanch like celery in September. Good in stews, soups and salads. Show-stopping in the garden reaching 6' with impressive silvery foliage; huge, thistle-like, purple blooms.
Planting Directions: Sow seeds as early in spring as ground can be worked and soil temperature is 50°. Sow seed 1/8” deep in well prepared soil that has been amended with rich compost or a general garden fertilizer. Germination takes 14-30 days. Thin seedlings so that mature plants stand 3’ apart. Plant in full sun with some protection from afternoon sun in very hot locations. Water regularly and deeply.