How to Grow Telstar Scarlet Tomato
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Telstar Scarlet Tomato
Solanum lycopersicum 'Telstar Scarlet'
vegetableTelstar Scarlet is a determinate (bush-type) hybrid tomato variety prized for its early maturity and abundant production of medium-sized, bright red fruits. It was developed specifically for short-season growing regions and commercial production due to its compact growth habit and uniform ripening. The plant produces concentrated yields making it ideal for gardeners seeking quick harvests.
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Example Telstar Scarlet Tomato timeline · Pittsburgh, PA (Zone 6b)
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Plant Telstar Scarlet 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 Telstar Scarlet Tomato
Around Jun 21≈ 65 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Telstar Scarlet Tomato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; exceptionally valuable for zones 3-5 where its early maturity ensures production before frost
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Seedling
2-3 weeksCotyledons emerge followed by true leaves. Plant is small with tender stems and developing root system.
Maintain warm temperatures (70-80°F), provide bright light (12-16 hours daily under grow lights), water gently to keep soil moist but not waterlogged. Avoid damping-off by ensuring good air circulation.
Vegetative Growth
3-4 weeksStrong stem development with multiple sets of compound leaves. Plant grows bushy and compact (determinate habit). Roots establish in soil.
Transplant to larger containers or garden when 6-8 inches tall. Harden off gradually before outdoor planting. Begin light fertilizing every 2 weeks with balanced formula. Pinch off lower leaves as plant grows.
Flowering
2-3 weeksYellow flowers appear in clusters along leaf axils. Plant reaches full height (2-3 feet). Flower buds form prolifically.
Maintain consistent watering; irregular water causes blossom-end rot and fruit cracking. Switch to lower-nitrogen fertilizer (higher phosphorus/potassium). Temperature range 65-85°F optimizes pollen viability. Provide support stakes or cages early.
Fruiting
3-4 weeksFlowers develop into marble to golf-ball sized green fruits. Fruits enlarge and begin color change from green to bright red. Multiple fruit clusters ripen sequentially.
Remove diseased or damaged fruit to redirect energy. Thin excess foliage around fruit clusters for sun exposure (improves ripening and reduces disease). Continue consistent watering. Avoid high-nitrogen fertilizers which delay ripening.
Harvest
2-6 weeks (ongoing until frost)Fruits turn fully scarlet-red and achieve 2-3 inch diameter. Plant may continue producing secondary flushes if conditions remain favorable.
Harvest fruits at first blush of color for vine-ripened flavor or pick fully red for immediate use. Telstar Scarlet ripens uniformly, making for cleaner harvests. Remove spent plants after final frost to prevent disease carryover.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick large caterpillars; use Bacillus thuringiensis (Bt) for early infestations; encourage parasitic wasps
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Spray with strong water stream, use insecticidal soap, apply neem oil, introduce ladybugs
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Use yellow sticky traps, spray with neem oil or insecticidal soap, encourage natural predators
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Increase humidity, spray with water, apply neem oil or miticide, remove heavily infested leaves
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Remove lower infected leaves, improve air circulation, mulch to prevent soil splash, apply copper fungicide
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Provide excellent air circulation, avoid overhead watering, apply chlorothalonil or copper fungicide, remove infected plants
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Remove infected leaves, improve air circulation, apply fungicide, avoid wetting foliage
Uses
Fresh eating and slicing
CulinaryTelstar Scarlet produces medium-sized, bright red fruits with classic tomato flavor ideal for fresh consumption, slicing for salads, and sandwiches. The uniform ripening ensures consistent quality across harvests. [source]
Sauce and processing
CulinaryThe determinate growth habit concentrates ripening, making Telstar Scarlet excellent for sauce-making and canning when a large harvest is desired over a short period. High acid content suits preservation. [source]
Antioxidant-rich nutrition
MedicinalTomatoes contain lycopene and other carotenoid antioxidants associated with cardiovascular and prostate health. Lycopene availability increases when tomatoes are cooked. [source]
Short-season gardening solution
HouseholdTelstar Scarlet was developed specifically for cool climates and short growing seasons, making it invaluable for northern gardeners (zones 3-5) who need early maturity to beat frost. [source]
Pollinator attraction
WildlifeTomato flowers attract bees and other beneficial pollinators while blooming. Companion plantings of basil and marigolds further enhance pollinator presence in the garden. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Telstar Scarlet matures early (65-75 days), making it ideal for succession planting. Harvest when fruits turn fully scarlet-red and yield slightly to gentle pressure. Pick regularly to encourage continued production. Fruits can be harvested at 'first blush' (showing color change) for vine-ripened flavor, or fully red for immediate use. In cool climates, pick fruits at first blush and ripen indoors on windowsill if frost threatens.
Fun Facts
- 🌱 Telstar Scarlet was specifically bred as an early determinate hybrid tomato for commercial production and short-season home gardening. Its development addressed the need for reliable varieties in regions with limited growing seasons.
- 🌱 Unlike indeterminate 'vining' tomatoes that produce throughout the season, Telstar Scarlet's determinate (bush) growth habit concentrates fruit production into a 2-4 week window, making it ideal for canning and sauce-making in bulk.
- 🌱 The name 'Telstar' references the Telstar satellite (launched 1962), symbolizing the technological innovation behind this modern hybrid variety.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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