How to Grow Yellowstone Tomato
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Yellowstone Tomato
Solanum lycopersicum 'Yellowstone'
vegetableYellowstone is a determinate cherry tomato variety known for its bright golden-yellow fruits and exceptional sweetness. The compact plants produce prolific clusters of small, round tomatoes perfect for fresh eating, salads, and snacking. This variety is prized for its disease resistance and reliable productivity in diverse growing conditions.
When should you plant Yellowstone Tomato in your zone?
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Example Yellowstone Tomato timeline · Pittsburgh, PA (Zone 6b)
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Plant Yellowstone Tomato
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Yellowstone Tomato
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Yellowstone Tomato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-10, can be grown as annual in zones 3-4 with season extension
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Seedling
4-6 weeksSmall plants with 2-4 true leaves, delicate and light green. Seedlings are started indoors 6-8 weeks before last frost.
Provide 14-16 hours of bright light daily under grow lights. Keep soil consistently moist but not waterlogged. Maintain temperature of 70-80°F. Thin to strongest seedlings. Begin fertilizing with diluted liquid fertilizer after first true leaves appear.
Transplant/Hardening Off
1-2 weeksStocky seedlings 6-8 inches tall with 4-6 true leaves, developing a root system in preparation for outdoor conditions.
Harden off gradually by exposing to outdoor conditions over 7-10 days. Reduce water slightly to encourage root development. Maintain consistent light. Transplant into garden after last frost date when soil is warm (at least 60°F).
Vegetative Growth
3-4 weeksBushy, compact plants growing 2-3 feet tall with dense foliage and developing branch structure. Early flower buds begin to form.
Maintain consistent watering and fertilize every 2-3 weeks with balanced or slightly higher phosphorus fertilizer. Support with stakes or cages early. Prune lower leaves once plant is established to improve air circulation and reduce disease. Monitor for pests and diseases.
Flowering & Fruiting
4-6 weeksAbundant small yellow flowers appear in clusters, followed by rapid development of small, round, bright yellow fruits. Plant reaches full size and begins heavy fruit production.
Ensure consistent watering to prevent blossom end rot and fruit cracking. Provide sturdy support as fruit clusters become heavy. Shift to higher potassium fertilizer to promote fruiting. Remove some foliage to allow sunlight to reach ripening fruit. Pinch off flower clusters in late summer to focus energy on existing fruit.
Harvest & Maturity
6-8 weeks (extends until first frost)Fruits ripen from green to golden-yellow, become sweet and glossy. Peak production occurs; plant may continue producing until first frost.
Harvest ripe fruits regularly to encourage continued production. Pick tomatoes when fully colored but still slightly firm. Continue consistent watering and fertilizing. Watch for late blight and mildew; improve air circulation. Remove diseased leaves immediately.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick larvae daily; use Bacillus thuringiensis (Bt); encourage natural predators like parasitic wasps
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Spray with insecticidal soap or neem oil; use reflective mulch; introduce natural predators like ladybugs; maintain good air circulation
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Increase humidity; spray with water; use neem oil or miticide; prune heavily infested leaves
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Remove lower leaves; improve air circulation; mulch to prevent soil splash; spray with copper fungicide; avoid overhead watering
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Remove infected leaves immediately; space plants for airflow; apply sulfur or copper fungicide; avoid wet foliage
Uses
Fresh eating and snacking
CulinaryYellowstone tomatoes are exceptionally sweet cherry tomatoes perfect for eating straight from the vine, adding to salads, or serving as appetizers. Their small size and high sugar content make them ideal for snacking and children's lunch boxes. [source]
Sauce and preserves
CulinaryThe concentrated sweetness and prolific yield of Yellowstone make them excellent for making tomato sauce, salsa, and jam. Their natural pectin content helps preserve-making. [source]
Container gardening
HouseholdYellowstone's compact determinate growth habit makes it ideal for container growing in pots, hanging baskets, and small spaces. It's perfect for patios, balconies, and urban gardens. [source]
Lycopene-rich nutrition
MedicinalTomatoes, especially when cooked, are rich in lycopene, a powerful antioxidant linked to reduced disease risk. Yellow tomatoes have lower lycopene than red varieties but contain other beneficial carotenoids. [source]
Pollinator support
WildlifeThe abundant flowers attract bees, butterflies, and other pollinators throughout the growing season. Yellowstone tomato plants provide significant nectar and pollen resources for beneficial insects. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pick fruits when fully yellow and slightly soft to touch, typically 65-75 days after transplanting. Harvest regularly to encourage continued production—the more you pick, the more flowers develop. Fruits can be harvested slightly early and ripened on a sunny windowsill. Leave the calyx (green crown) intact. In late season, pick mature green fruits and ripen indoors before first frost.
Fun Facts
- 🌱 Yellowstone is a relatively modern heirloom that was developed by Cornell University as part of their disease-resistant tomato breeding program.
- 🌱 The bright yellow color comes from xanthophyll pigments rather than lycopene, making them appear different from red tomatoes but still nutritious and delicious.
- 🌱 A single Yellowstone plant can produce over 200 small cherry tomatoes in a season under optimal growing conditions, making it one of the most prolific varieties available.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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