Principe Borghese
75d to harvest
Sun-warmed and intensely aromatic, Principe Borghese paste tomatoes ripen to a rich, deep-red that tastes concentrated and bright—sweet at first breath, then pleasantly tangy with a savory, old-world depth. The fruits are firm and meaty with a dense, low-seed interior, yielding a silky, spoonable texture that clings beautifully to every simmering moment. Grow them for classic paste-style performance: ideal for thick sauces, slow-cooked reductions, and robust preserves that showcase their heirloom character.
Crop Dates
Growing note: Zone 1b has only 61 frost-free days — shorter than this crop's 75-day maturity. Outdoor planting is not viable; use protected cultivation.
| Milestone | Date |
|---|---|
| Last Frost | Jun 1st |
| Growing Approach | Protected Environment Only |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 75 |
| Sun Requirements | Full Sun |
| Growth Habit | Determinate |
| Support Needed | Cage |
| Planting Depth | Deep |
| Germination Temp (°F) | 75 |
| Min Soil Temp (°F) | 60 |
| Min Night Temp (°F) | 50 |
| Harden Off (days) | 9 |
Recommended Companions
Frequently Asked Questions
What pest or disease problem commonly affects Solanum lycopersicum (tomato) like ‘Principe Borghese’, and how can I control it?
Watch for early blight (Alternaria) on older leaves, which shows up as dark, concentric spots that spread upward. Remove and discard infected leaves early, improve airflow with pruning, and water at the soil line to keep foliage dry. If it keeps progressing, use a labeled protective fungicide and rotate products to avoid resistance.
How often should I water ‘Principe Borghese’ tomato during the main growing phase, and what soil moisture level should I maintain?
During active flowering and fruit set, water deeply to keep the root zone evenly moist, typically about 1–2 inches of water per week depending on heat and rainfall. Let the top 1 inch of soil dry slightly between waterings, but don’t allow the plant to repeatedly swing from dry to saturated—this can trigger blossom-end rot and cracking. Mulch helps maintain steady moisture around the tomato roots.