A half dozen Korean Long Tomatoes on a white plate with slices on a white background.
Sliced and whole Korean Long Tomatoes on a white plate with Korean money.
A half dozen Korean Long Tomatoes on a white plate with slices.
Korean Long Tomatoes on Korean dishes on a wooden background.
Sliced and whole Korean Long Tomatoes on a large leaf on a linen background.
Cut and whole Korean Long Tomatoes on a stone background.
A half dozen Korean Long Tomatoes on a white plate with slices on a white background.
Sliced and whole Korean Long Tomatoes on a white plate with Korean money.
A half dozen Korean Long Tomatoes on a white plate with slices.
Korean Long Tomatoes on Korean dishes on a wooden background.
Sliced and whole Korean Long Tomatoes on a large leaf on a linen background.
Cut and whole Korean Long Tomatoes on a stone background.

Tomato Seeds,
Korean Long

4.719 ReviewsSKU: #TK103Min. seed count: 15
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Description

(Solanum lycopersicum). Unique, tasty and versatile, the Korean Long tomato is a sauce or slicing tomato with meaty flesh and superb flavor. The long pinkish red fruit has a slightly curved pointed nose or tail and ranges between 6 and 14 ounces, with some fruit being more heart shaped. A crack-resistant paste tomato that is productive, reliable, and bursting with heirloom flavor. This sumptuous and flavorful variety is delicious fresh or cooked.

Growing Tips: The Korean Long tomato is an heirloom variety that grows best in full sunlight, with 6-8 hours of direct exposure daily. The soil should be fertile, well-draining, and slightly acidic, with a pH of 6.0 to 6.8. Regular, deep watering is very important, especially during dry spells. Mulching helps retain water and control weeds. Support the indeterminate plants with sturdy stakes or cages to prevent sprawling and encourage healthy fruit development.

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
85–90
Planting Depth
⅛ in.
Plant Spacing
24 in.
Ideal Temperature
75–95°F
Frost Hardy
No

When to Grow

Start seeds indoors 6 to 10 weeks before the last frost date in your region. Transplant seedlings outdoors after all danger of frost has passed and the soil temperature consistently reaches above 60 F. In areas with shorter growing seasons, consider using raised beds or black plastic mulch to warm the soil and extend the growing period. 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 about 1/8 inch deep in a seed-starting mix, keeping the soil at 70-80 F. You can use a heat mat to help warm up the soil and speed up germination. Harden off seedlings for 7-10 days before transplanting by gradually exposing them to outdoor conditions. Space plants 24 inches apart.

How to Grow

Fertilize with a balanced, slow-release fertilizer at planting, and side-dress with compost or additional fertilizer every few weeks during the growing season. Remove suckers (small shoots growing between the main stem and branches) to focus energy on fruit production. Monitor for common pests such as aphids, hornworms, and whiteflies.

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

Can Korean Long tomatoes grow in containers?

Yes, but use a container of at least 5 gallons with proper staking to support the indeterminate growth.

How do I prevent diseases in Korean Long tomatoes?

Rotate crops annually, avoid overhead watering, and maintain proper plant spacing to reduce the risk of fungal and bacterial infections.

What are good companion plants for Korean Long tomatoes?

Basil, marigolds, and garlic make excellent companions, as they deter pests and improve overall garden health.

Browse our full range of heirloom tomato seeds.
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