About This High-Yield Gourmet Heads: Artichoke seeds for planting outdoors produce green-to-purple chokes, tender for artichoke hearts. Strong upright alcachofa plants suit outdoor vegetable garden beds. Chef-Favorite Heirloom: Heirloom artichoke seeds, open-pollinated, plant seeds grow 72 in tall. Classic artichoke vegetable plants & seeds for outdoor garden rows with 48 in spacing for airflow. Versatile Kitchen Use: Harvest tight 4" buds for artichoke hearts canned, frozen artichoke hearts, and artichoke bottoms –tender gourmet flavor from Purple artichokes fresh in USDA zones 6–12. Cold Prep for Success: Start globe artichoke seeds indoors; cold stratify heirloom seeds 2 weeks, then expect 10–20 day sprouting. Ideal garden vegetable seeds variety pack for indoor garden seed-starting. Harvest at Peak: Buds form about 120 days after transplant. Great artichoke plants for planting outdoors from green vegetable seed pack. These Italian garden seeds grow large-hearted heads that vary in color from green to purple in home garden. Overview Brand : SVI Color : Purple Expected Blooming Period : Spring to Summer Sunlight Exposure : Full Sun Unit Count : 50.0 Count Expected Planting Period : Spring to Fall USDA Hardiness Zone : 6-12 Expected Plant Height : 6 Feet Soil Type : Loam Soil Moisture Needs : Constant Watering