How to Grow Senator
Wikimedia Commons
Senator
Solanum lycopersicum 'Senator'
vegetableSenator is a hybrid determinate tomato variety known for its uniform, medium-sized fruits and excellent disease resistance. It was developed for commercial production and home gardens, offering reliable yields of flavorful tomatoes suitable for fresh eating and processing. This variety is particularly valued for its resistance to verticillium and fusarium wilts.
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Example Senator timeline · Pittsburgh, PA (Zone 6b)
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Plant Senator
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 Senator
Around Jun 24≈ 68 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Senator dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9; can be grown in zone 3-4 with season extension techniques
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Seedling
3-4 weeksSmall plants with 2-4 true leaves, tender and delicate
Provide bright light 14-16 hours daily. Keep soil moist but not waterlogged. Maintain temperature 65-75°F. Thin seedlings to strongest plant.
Vegetative
3-4 weeks after transplantingRapid stem and leaf growth; plant becomes bushy and establishes root system
Harden off transplants 7-10 days before planting. Space 24-36 inches apart. Install stakes or cages early. Pinch lower leaves after flowering begins. Apply balanced fertilizer every 2-3 weeks.
Flowering
2-3 weeksYellow flowers appear in clusters; plant continues growing but energy shifts toward reproduction
Maintain consistent watering to prevent flower/fruit drop. Switch to lower nitrogen, higher phosphorus fertilizer. Temperature 65-80°F is ideal for pollen viability. Avoid overhead watering.
Fruiting
3-4 weeksSmall green fruits develop rapidly; plant reaches full size and begins slowing vertical growth
Continue consistent watering (crucial for fruit development). Prune suckers on determinate types minimally. Support heavy fruit clusters. Monitor for diseases and pests closely.
Harvest
2-3 weeks peak productionFruits mature to full red color; determinate varieties ripen in concentrated flush over 2-3 weeks
Pick ripe fruits to encourage continued production. Harvest at breaker stage (first blush of color) in hot climates. Can pick mature green fruits and ripen indoors at 68-77°F.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick; encourage parasitic wasps; Bt (Bacillus thuringiensis) spray; neem oil
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Yellow sticky traps; insecticidal soap; neem oil; reflective mulch
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Strong water spray; insecticidal soap; neem oil; ladybug introduction
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Remove infected lower leaves; improve air circulation; mulch to prevent soil splash; copper fungicide; ensure full sun
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Resistant variety choice; avoid overhead watering; remove infected plant parts; chlorothalonil or copper fungicide
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Remove infected leaves; improve spacing; avoid overhead watering; copper or sulfur fungicide
Uses
Fresh eating and slicing
CulinarySenator produces medium-sized, flavorful tomatoes ideal for slicing in salads, sandwiches, and fresh preparations. The balanced flavor and firm texture make it excellent for eating fresh off the vine. [source]
Processing and canning
CulinaryAs a hybrid variety developed for commercial production, Senator is well-suited for making sauce, juice, and canned products. Its determinate habit allows for bulk harvesting at once for processing. [source]
Disease-resistant gardening
HouseholdSenator was specifically bred for verticillium and fusarium wilt resistance, making it an excellent choice for gardeners with disease-prone soils or limited chemical input. [source]
Antioxidant-rich produce
MedicinalLike all tomatoes, Senator contains lycopene, a powerful antioxidant associated with various health benefits including cardiovascular and prostate health. [source]
Pollinator support
WildlifeTomato flowers attract bees and other beneficial pollinators that help ensure fruit set and maintain garden biodiversity. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Senator is a determinate variety, meaning it produces most fruit in a concentrated period (typically 2-3 weeks). Pick tomatoes at the breaker stage (first blush of red) to encourage continued ripening and production. Fully ripe fruits (deep red) are ready for immediate eating. In hot climates, harvest mature green fruits and ripen indoors at 68-77°F to prevent sun scald. Handle gently to avoid bruising.
Fun Facts
- 🌱 Senator is a determinate (bush) variety, meaning it sets most of its fruit simultaneously and matures quickly—perfect for canning and processing all at once rather than over a long season.
- 🌱 The Senator cultivar was introduced in the 1940s and remains a popular commercial and home garden variety due to its reliable disease resistance and consistent yields.
- 🌱 Tomatoes are botanically berries (a fruit developed from the ovary of a flowering plant) but are legally classified as vegetables in the U.S. Supreme Court case Tariff Act of 1883.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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