Cut and whole Aichi First Tomatoes arranged on a white background.
A single Aichi First Tomato on a white background.
A single sliced Aichi First Tomato on a white background.
A trio of Aichi First Tomatoes with props from Japan on a white background.
A basket full of Aichi First Tomatoes with tomato slices on a plate with Japanese props on a white background.
Cut and whole Aichi First Tomatoes arranged on a white background.
A single Aichi First Tomato on a white background.
A single sliced Aichi First Tomato on a white background.
A trio of Aichi First Tomatoes with props from Japan on a white background.
A basket full of Aichi First Tomatoes with tomato slices on a plate with Japanese props on a white background.

Tomato Seeds,
Aichi First

SKU: #TK106Min. seed count: 25
Price
Regular price $4.00
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Description

(Solanum lycopersicum). This classic Japanese variety is the perfect blend of history and taste! The fruits feature a distinctive pointed tip, which can be variable but is most pronounced in cooler weather. The heavy, pink-red tomatoes are firm, sweet, and crisp, offering a rich, full old school flavor. Highly productive, this heirloom is believed to trace its roots to Toyohashi, Aichi Prefecture, in 1938. A mid-season, indeterminate variety with regular leaves, this pink heirloom produces medium-sized fruits weighing up to approximately 1/2 pound each.

Growing Tips: Aichi First tomatoes thrive in warm, fertile, well-drained soil with consistent moisture and balanced nutrition. Provide sturdy support to encourage upright growth and reduce fruit rot. Mulch to conserve water and stabilize soil temperatures. Prune lightly to improve air circulation and support steady fruit production.

Plant Details

Botanical Name
Solanum lycopersicum
Life Cycle
Annual
Growth Habit
Indeterminate
Sun Requirement
6–10 hr.
Days to Germinate
5–10
Days to Maturity
80–90
Planting Depth
¼ in.
Plant Spacing
18–36 in.
Ideal Temperature
70–85°F
Frost Hardy
No

When to Grow

Start seeds indoors 6–8 weeks before your area’s final spring frost, then transplant once soil temperatures warm and all risk of frost has passed. In mild climates, a late-summer sowing may extend harvests into fall. 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 in sterile seed-starting mix, lightly covering them and keeping the medium evenly moist. Provide warmth for strong germination. Once seedlings develop true leaves, pot them up, then transplant deeply outdoors, burying stems to promote stronger root systems.

How to Grow

Maintain even watering at the base of the plant to reduce splitting and minimize disease pressure. Apply organic fertilizer or compost during early growth and again at flowering. Stake or cage plants early for support. Monitor for pests, prune lower foliage for airflow, and harvest fruit promptly for best quality.

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

How long do Aichi First tomato seeds remain viable?

Stored in a cool, dry place, tomato seeds typically remain viable for four to six years. Proper drying and airtight storage help preserve strong germination rates over time.

Do Aichi First tomatoes require pruning?

Pruning is optional but beneficial. Removing lower leaves and occasional suckers improves air circulation, reduces disease risk, and helps direct plant energy toward producing high-quality fruit.

Can Aichi First tomato plants grow well in containers?

Yes. Choose a container at least 5 gallons with drainage, use high-quality potting mix, and provide regular watering and support. Container plants may dry faster, so monitor moisture closely.

Browse our full range of heirloom tomato seeds.
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