Costoluto Genovese Heirloom Tomato Seeds

Grow Costoluto Genovese heirloom tomato seeds for richly flavored red tomatoes with distinctive deep ribs. This open-pollinated Italian variety produces flattened, pleated fruit that makes beautifully scalloped slices and flavorful homemade sauces.

Variety Highlights

• Italian heirloom: Costoluto Genovese is known for its heavily ribbed, bright-to-deep red fruit and rich flavor.
• Fruit size: Approximately 6–8 ounces, with a flattened, irregular shape.
• Growth habit: Indeterminate vines need sturdy cages or stakes to support the fruit load.
• Growing spaces: Suitable for garden beds, greenhouses, and large containers on a sunny deck or balcony.
• Heat tolerance: A heat-tolerant variety for warm-season growing.
• Harvest timing: Allow approximately 78–90 days from transplanting; maturity varies with growing conditions.

Starting Your Seeds

Sow indoors 6–8 weeks before your last expected frost. Harden off seedlings gradually before transplanting outdoors after frost danger has passed.

Planting and Care

Choose full sun and fertile, well-drained soil. Install strong stakes or cages and water regularly to maintain consistent soil moisture. Prune excess suckers as needed to manage the vines. Large containers are an option for sunny patios and balconies and may help reduce exposure to soil-borne disease.

Tomatoes are frost-sensitive and are generally grown as annuals in USDA Zones 3–11. In frost-free parts of Zones 8–11, they may grow as tender perennials with suitable protection and conditions.

Seed Pack Options

Choose from 30 seeds, 100 seeds, 500 seeds, 1/4 ounce, 1 ounce, or 1/4 pound using the size selector.

• 1/4 ounce: Approximately 1,700 seeds.
• 1 ounce: Approximately 6,800 seeds.
• 1/4 pound (4 ounces): Approximately 27,200 seeds.

Seed counts for weight-based packs are approximate.