Costoluto Genovese tomato and slice on a white background.
A cluster of Costoluto Genovese Tomatoes with one sliced on dark wooden cutting board with a fork.
Costoluto Genovese Tomatoes with Italian postcards and a Rome spoon on a light background.
Close-up of cut and whole Costoluto Genovese Tomatoes on high key background.
Costoluto Genovese Tomatoes on seed drying rack with an old spoon.
A vine of Costoluto Genovese Tomatoes on bright white background.
Costoluto Genovese tomato and slice on a white background.
A cluster of Costoluto Genovese Tomatoes with one sliced on dark wooden cutting board with a fork.
Costoluto Genovese Tomatoes with Italian postcards and a Rome spoon on a light background.
Close-up of cut and whole Costoluto Genovese Tomatoes on high key background.
Costoluto Genovese Tomatoes on seed drying rack with an old spoon.
A vine of Costoluto Genovese Tomatoes on bright white background.

Tomato Seeds,
Costoluto Genovese

3.993 ReviewsSKU: #TM210Min. seed count: 25
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Description

(Solanum lycopersicum). The fluted, old Italian favorite that has been around since the early 19th century. Fruit is rather flattened and quite attractive with its deep ribbing. This variety is a standard in Italy for both fresh eating and preserving, and known for its intensely flavorful, deep red flesh. This variety has also become very popular with chefs in this country.

Growing Tips: This variety grows best in full sun and needs 6-8 hours of direct sunlight daily. Plant in fertile, well-draining soil enriched with compost. Consistent watering is very important to prevent the fruit from cracking. Support plants with stakes or cages to manage their indeterminate growth habit and heavy fruit load.

Plant Details

Botanical Name
Solanum lycopersicum
Life Cycle
Annual
Growth Habit
Indeterminate
Sun Requirement
6–8 hr.
Days to Germinate
7–14
Days to Maturity
70–80
Planting Depth
⅛ in.
Plant Spacing
24 in.
Ideal Temperature
75–95°F
Frost Hardy
No

When to Grow

Start seeds indoors 6-10 weeks before the last expected frost date in your region. Transplant seedlings outdoors once frost danger has passed and temperatures remain above 60 F. Check your local area’s frost dates for a specific planting time. If you’re not sure how to find your first and last frost dates, consult our blog post "Our Experts Answer Questions, Share Resources."

How to Sow and Plant

Sow seeds 1/8 inch deep in seed-starting trays. Keep the soil warm during germination. Harden off seedlings over 7-10 days before transplanting them outdoors, spacing plants about 24 inches apart.

How to Grow

Water deeply and regularly to maintain consistent moisture levels. Mulch around plants to retain soil moisture and reduce weed growth. Prune suckers and lower leaves to improve airflow and focus the plant’s energy on fruit development.

How to Save Seeds

  • Most tomatoes are self-pollinating and don't frequently cross; in a garden setting, separating by 25 feet should prevent 99% of cross-pollination. Or you can bag and hand pollinate for 100% purity.
  • On a small scale, seeds may be scooped from the fruits and dried on a paper towel.
  • For larger quantities or cleaner seeds, fermentation for a few days is recommended.
  • Once dry, tomato seed can be stored in a cool, dry, dark place; good seed retains viability for 5 years or more.

FAQ

Is the Costoluto Genovese tomato determinate or indeterminate?

It is an indeterminate variety, producing fruit throughout the growing season.

How does the Costoluto Genovese tomato taste?

It has a rich, tangy flavor, making it ideal for sauces and fresh consumption.

Can the Costoluto Genovese tomato grow in containers?

Yes, but choose a large container (at least 5 gallons) with proper support for the plant's growth.

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