Trio of Sweetheart Cherry Tomatoes on a white background.
A couple of Sweetheart Cherry Tomatoes on a white background.
Close-up view of whole and cut Sweetheart Cherry Tomatoes with some in a canning jar.
A bumper crop of Sweetheart Cherry Tomatoes overflowing a large yellow bowl with blooms.
Sweetheart Cherry Tomatoes in a berry container with blooms on a wood background.
Overhead view of Sweetheart Cherry Tomatoes with foliage and blooms on a wood cutting board.
Sweetheart Cherry Tomatoes arranged in spiral on blue background.
Trio of Sweetheart Cherry Tomatoes on a white background.
A couple of Sweetheart Cherry Tomatoes on a white background.
Close-up view of whole and cut Sweetheart Cherry Tomatoes with some in a canning jar.
A bumper crop of Sweetheart Cherry Tomatoes overflowing a large yellow bowl with blooms.
Sweetheart Cherry Tomatoes in a berry container with blooms on a wood background.
Overhead view of Sweetheart Cherry Tomatoes with foliage and blooms on a wood cutting board.
Sweetheart Cherry Tomatoes arranged in spiral on blue background.

Tomato Seeds,
Sweetheart Cherry

4.339 Reviews#TM108 · 10 seeds
Price
Regular price $3.50
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Description

(Solanum lycopersicum). Sugar sweet, crunchy, and so delicious! This cherry tomato is simply packed with sweetness and a rich, berry-like flavor. It is quite crisp, and the fruit can keep long on the vine, making it extra high in sugar! Sweetheart Cherry is a wildly productive little snacking tomato great for greenhouse and outdoor production. This was an outstanding tomato in our trials for flavor and yield, and the strong vines produced heavy yields of tomatoes longer than any other variety we have tried! Extra-long trusses are smothered in red, cherry-sized fruit that resists cracking. You must allow the fruit to ripen on the vine to a very deep red for the very sweetest flavor, or pick earlier if you like it a bit more tangy; either way it is superb! It proved productive and flavorful even in our cool winter greenhouses, with only 42 F degrees at night. These little strawberry-shaped jewels are a staff favorite.

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
70–75
Planting Depth
⅛ in.
Plant Spacing
24 in.
Ideal Temperature
75–95°F
Frost Hardy
No

Growing Guide

When to Grow

Start seeds indoors about 6-10 weeks before the last frost date. After all risk of frost has passed and the soil temperature reaches at least 65 F, transplant seedlings outdoors. Harden them off by gradually exposing them to outdoor conditions before transplanting​. 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

Plant seeds 1/8 inch deep in seed trays or pots with warm soil. Once seedlings develop true leaves, transplant them into larger containers or outdoors, keeping them spaced about 24 inches apart​.

How to Grow

Sweetheart cherry tomatoes need consistent watering, ideally, 1-1.5 inches per week, while avoiding water on the foliage to reduce disease risks. Fertilize every 2-3 weeks with a balanced fertilizer that supports fruit production. Removing suckers and pruning lower leaves can help increase airflow, which improves overall plant health​.

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

Are Sweetheart cherry tomatoes prone to cracking?

They are generally resistant to cracking, making them great for both fresh use and storage.

Do Sweetheart cherry tomatoes need regular pruning?

Yes, prune the lower leaves and remove suckers to boost airflow and direct energy toward fruiting, especially for indeterminate varieties.

How to use Sweetheart cherry tomatoes best?

Their sweet flavor makes them perfect for salads, snacking, and garnishing dishes​.

Browse our full range of heirloom tomato seeds.

Customer reviews

4.3 / 5 39 Reviews

What gardeners are saying

  • Extremely prolific: Trusses loaded with fruit; hard to keep up with the harvest.

  • Early to ripen: Often the first tomato to ripen in the garden.

  • Holds on the vine: Heart-shaped fruit stays firm and does not crack.

  • Easy and vigorous: Germinates well and grows fast, good for beginners.

  • Heads up: Many find the flavor mild and the skins thick; pick fully ripe.

More to grow!

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