How to Grow Tomato Sungold

Tomato Sungold

Solanum lycopersicum 'Sungold'

vegetable

Sungold is an exceptionally sweet cherry tomato with a golden-orange color and complex flavor profile that's often described as having fruity, tropical notes. This indeterminate variety grows vigorously and produces prolific clusters of marble-sized fruits throughout the season. It's a favorite among home gardeners for its superior taste and reliable productivity.

Growing Conditions

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Sun: Full sun, 8+ hours daily (ideally 10+ hours for best fruit production)

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Water: Consistent moisture with 1-2 inches per week; water deeply and regularly to prevent blossom-end rot and fruit cracking. Avoid wetting foliage to reduce disease; drip irrigation is ideal.

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Spacing: 24 inches

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Days to maturity: 65-75 days from transplant to first ripe fruit

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Planting depth: Start seeds ¼ inch deep indoors; transplant seedlings when 6-8 inches tall, burying stem up to first true leaves

Soil

Type: Well-draining, fertile loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost Aged manure Peat moss or coco coir Balanced fertilizer (10-10-10) Calcium source (crushed eggshells or gypsum for blossom-end rot prevention)

Growing Zones

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Thrives in zones 3-11; grow as annuals in cooler zones or year-round in warm climates

2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

Growth Stages

Seedling

3-4 weeks

Tiny plants with cotyledons and 2-4 true leaves; delicate and pale green

Provide 14-16 hours of grow light 3-4 inches above seedlings. Keep soil moist but not waterlogged. Maintain 65-75°F. Begin air circulation with a small fan once true leaves appear.

Vegetative

2-3 weeks before planting outdoors

Sturdy transplants with 6-12 inches of growth and multiple true leaves; strong root systems developing

Harden off seedlings by gradually exposing to outdoor conditions over 7-10 days. Plant outdoors after last frost. Install sturdy cages or stakes early. Pinch off lower leaves once plant is established.

Flowering

3-4 weeks into season

Plant reaches 2-3 feet tall with abundant yellow flowers in clusters (trusses); first flowers appear at leaf axils

Ensure consistent watering; irregular water disrupts pollination. Apply balanced fertilizer (slightly lower nitrogen to avoid excessive foliage). Keep suckers pruned for better air circulation. Hand-pollinate flowers in hot weather by tapping trusses mid-morning.

Fruiting

4-6 weeks, beginning 65-75 days from transplant

Flowers transition to marble-sized green fruits; clusters fill with developing tomatoes in various stages of maturity

Shift to higher phosphorus/potassium fertilizer to support fruiting. Maintain consistent watering—critical to prevent blossom-end rot and fruit cracking. Prune excessive foliage carefully to allow sunlight to ripen fruit without scalding. Support heavily laden branches.

Harvest

8-12 weeks or until first frost

Fruits transition from green to orange-yellow, becoming fully colored and glossy; peak sweetness when fully ripe

Harvest at full color for peak sweetness and complex flavor. May pick at 'breaker stage' (first blush of color) if needed and ripen indoors. Pick regularly to encourage continued production. Fruits continue ripening until first frost.

Companion Planting

Plan your garden →

Plant with:

Basil Parsley Marigold Nasturtium Carrot Onion Borage Garlic

Avoid planting near:

Brassicas (cabbage, broccoli, cauliflower) Fennel Kohlrabi Potato Walnut trees

Common Pests

Hand-pick or use Bacillus thuringiensis (Bt). Scout daily for droppings and leaf damage. Encourage natural predators like parasitic wasps.
Use yellow sticky traps. Spray insecticidal soap or neem oil on leaf undersides. Reflective mulch deters infestations. Increase air circulation.
Increase humidity and airflow. Spray with strong water jet early morning. Use miticides or neem oil if severe. Avoid over-fertilizing with nitrogen.
Remove infected lower leaves. Improve air circulation. Use drip irrigation to keep foliage dry. Apply copper fungicide preventively. Avoid overhead watering.
Mulch heavily to prevent soil splash. Prune lower leaves. Remove infected foliage promptly. Apply copper or chlorothalonil fungicide. Plant resistant varieties nearby.
Ensure good air circulation. Apply sulfur dust or neem oil weekly. Avoid overhead watering. Prune dense foliage. Maintain moderate humidity.
Water deeply and consistently. Avoid erratic watering patterns. Add crushed eggshells or gypsum to soil. Mulch to regulate moisture. Maintain pH 6.0-6.8.

Uses

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Fresh snacking and salads

Culinary

Sungold's exceptional sweetness and complex fruity flavor make it perfect for eating fresh off the vine or adding to salads where its golden color provides visual appeal. The small size makes them convenient for snacking and entertaining. [source]

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Cooking and preserving

Culinary

While best fresh, Sungold can be roasted, sun-dried, or made into preserves and concentrates. Their natural high sugar content produces rich, flavorful cooked tomato products. [source]

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Nutritional and antioxidant benefits

Medicinal

Tomatoes are rich in lycopene, a powerful antioxidant linked to reduced risk of heart disease and certain cancers. Golden varieties like Sungold contain high levels of beta-carotene and vitamin C. [source]

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Container gardening

Household

Though indeterminate and vigorous, Sungold can be grown in large containers (20+ gallons) on patios and balconies, making it excellent for space-limited gardeners who still want prolific production. [source]

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Pollinator attraction

Wildlife

Sungold's abundant yellow flowers attract bees and other pollinators throughout the growing season, supporting garden biodiversity while ensuring good fruit set. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest when fruits reach full golden-orange color for maximum sweetness—Sungold is most flavorful when fully ripe, unlike many red tomatoes which reach peak flavor at the breaker stage. Gently twist and pull, or use pruning shears. Pick regularly (every 2-3 days during peak season) to encourage continuous production. Fruits continue ripening until the first frost; pick remaining green fruits as temperatures drop and ripen indoors at room temperature. Store at room temperature for best flavor—refrigeration diminishes taste.

Fun Facts

🌱 Sungold was developed by the Japanese seed company Peto Seeds and introduced to the market in the 1980s; it has become one of the most beloved heirloom cherry tomato varieties globally.
🌱 The fruity, tropical flavor profile some describe in Sungold is attributed to higher fructose content and a unique balance of sugars and acids compared to red cherry tomatoes, making it notably sweeter with a complex taste.
🌱 An indeterminate variety, Sungold can grow 6+ feet tall and produce hundreds of fruits throughout the season if properly supported and pruned, with peak production occurring during warm, sunny periods.

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