How to Grow Roma II Tomato
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Roma II Tomato
Solanum lycopersicum 'Roma II'
vegetableRoma II is a determinate paste tomato variety prized for its uniform, oblong fruits and excellent flavor. It's a classic processing tomato that produces high yields of meaty, low-seed fruits ideal for sauce, paste, and canning. This improved cultivar offers better disease resistance and productivity than the original Roma variety.
When should you plant Roma II Tomato in your zone?
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Example Roma II Tomato timeline · Pittsburgh, PA (Zone 6b)
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Plant Roma II 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 Roma II Tomato
Around Jul 1≈ 75 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Roma II Tomato dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; best productivity in zones 5-9 with warm growing seasons
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Get my Roma II Tomato timeline →Growth Stages
Seedling
10-14 daysTiny plants with 2 cotyledons emerge, followed by first true leaves. Plants are delicate with thin stems.
Keep soil moist but not waterlogged. Provide bright light 12-16 hours daily to prevent leggy growth. Maintain warmth (70-80°F). Thin seedlings to strongest ones.
Vegetative Growth
3-4 weeksRapid stem and leaf development. Plants grow bushy with multiple branches. No flowers yet. Determinate type stays more compact than indeterminate varieties.
Harden off transplants gradually before planting outdoors. Once in ground, water consistently and stake or cage early. Remove lower leaves as plant grows to improve air circulation. Prune suckers on side shoots to direct energy to main stem.
Flowering
2-3 weeksSmall yellow flowers appear in clusters along the stems. Multiple flower clusters may develop simultaneously on determinate types.
Maintain consistent watering; irregular moisture causes flower drop. Ensure full sun exposure. Fertilize with balanced fertilizer low in nitrogen to encourage flowering rather than excessive leaf growth. Moderate temperatures (65-80°F) promote best fruit set.
Fruiting & Development
4-5 weeksGreen oblong fruits develop and gradually increase in size. Fruits mature from green to deep red. Multiple clusters of fruit ripen simultaneously on determinate plants.
Continue consistent watering to prevent cracking and blossom end rot. Reduce nitrogen fertilization; provide phosphorus and potassium support. Support branches heavily laden with fruit. Remove any diseased leaves. Adequate mulch prevents soil-borne disease splash.
Harvest
2-3 weeks peak harvestFruits turn fully red, firm, and meaty. Roma II typically produces fruits in waves due to its determinate nature, concentrating harvest over 2-3 weeks rather than continuous production.
Harvest when fully red and slightly soft to touch for best flavor, or pick at light-breaker stage (slight color break) if processing. Handle gently to avoid bruising. After heavy harvest on determinate types, plant can decline quickly; remove spent plants.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick and remove; encourage parasitic wasps; use BT (Bacillus thuringiensis) spray if infestation is severe
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Use yellow sticky traps; spray insecticidal soap; encourage beneficial insects like ladybugs
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Increase humidity with regular misting; spray with neem oil or insecticidal soap; remove heavily infested leaves
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Remove lower infected leaves; improve air circulation; mulch to prevent soil splash; use copper fungicide if needed
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Ensure good air circulation; avoid overhead watering; use chlorothalonil or copper-based fungicides; remove infected plants
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Remove infected leaves; improve ventilation; avoid working in wet plants; use fungicide if severe
Uses
Tomato Sauce & Paste
CulinaryRoma II's meaty, low-moisture flesh with few seeds makes it ideal for cooking down into rich sauces, pastes, and concentrates. The natural sweetness and acidity balance beautifully in Italian and Mediterranean dishes. [source]
Canning & Preservation
CulinaryThe firm flesh holds its shape during processing and canning, making Roma II excellent for home preserving projects like whole peeled tomatoes, salsa, and marinara. [source]
Fresh Eating & Slicing
CulinaryWhile primarily a sauce tomato, Roma II's low-seed content and meaty texture make it suitable for eating fresh, adding to salads, or slicing for sandwiches. [source]
Home Food Security
HouseholdThe determinate growth habit and heavy, concentrated yields make Roma II excellent for gardeners planning a single major harvest for preservation and storage. [source]
Nutritional Support
MedicinalTomatoes are rich in lycopene, a powerful antioxidant with potential cardiovascular and cancer-prevention benefits. Fresh or cooked tomatoes provide vitamins C, K, and potassium. [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 are fully red and slightly soft when gently squeezed. Roma II is determinate, meaning fruits ripen in concentrated flushes rather than continuously—the main harvest typically occurs over 2-3 weeks. For canning and sauce-making, harvest at peak ripeness. Can pick at light-breaker stage (first sign of color) and ripen indoors if needed. Expect 50-80 pounds per plant in ideal conditions.
Fun Facts
- 🌱 Roma II was developed as an improved cultivar of the original Roma tomato, offering better disease resistance (particularly to Verticillium and Fusarium wilts) and more consistent yields while maintaining the classic oblong paste-tomato shape.
- 🌱 Determinate varieties like Roma II are 'programmed' to stop growing at a set height and produce most of their fruit within a concentrated window—a trait specifically selected for commercial canning operations and home preservers who want a single major harvest.
- 🌱 The name 'Roma' honors Rome, Italy, reflecting this tomato's heritage in Italian cooking, where it has become synonymous with authentic marinara and tomato paste production.
Gardening Terms
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