Solanum lycopersicum ‘Principe Borghese’ — Italian Drying Tomato | Master Sun-Dried Tomatoes

Grow the world’s most celebrated sun-dried tomato. Principe Borghese is the authentic Italian heirloom that transforms into intensely flavored, shelf-stable jewels when dried—a living pantry of summer flavor all winter long. Its meaty, low-moisture fruits arrive in abundant clusters and practically beg to be hung or dehydrated. Easy to grow even for beginners. Start from seed and taste why Italians have trusted this variety for over a century.

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Description

Sun-dried tomato perfection begins here—with the seed of a legendary Italian heirloom that has fed families and inspired kitchens for generations.

Principe Borghese is not simply a tomato; it is a time machine planted in soil. Since the late 1800s, this extraordinary variety has graced the sun-drenched gardens of Puglia in southern Italy, where it became the go-to choice for creating pomodori secchi—the iconic sun-dried tomatoes that define Italian cooking. The variety carries the weight of history in every seed, yet grows with surprising ease in modern gardens everywhere.

What makes Principe Borghese the undisputed master of sun-dried tomato production is its obsessive perfection for this singular purpose. Each small, elegant fruit arrives in spectacular clusters—dozens of ruby-red, plum-shaped jewels with a gorgeous pointed tip that catches the light. But the true magic lies beneath the thin skin: remarkably meaty, concentrated flesh with little juice and few seeds. This is the architectural opposite of a watery supermarket tomato. When dried—whether hung on strings Italian-style or sliced and dehydrated—the flavor doesn’t fade; it intensifies, concentrating into a savory-sweet, umami-rich delicacy. Sun-warmed fruits become leathery treasures that rehydrate beautifully for pasta sauces, soups, salads, and bruschetta. They can be crushed into flakes for instant sauce depth or reconstituted in good olive oil and stored as liquid gold in your pantry. Unlike other drying varieties, Principe Borghese retains both its color and flavor through the drying process, creating sun-dried tomatoes that taste as good as they look. Home gardeners who grew Romas or San Marzanos for drying often report the moment they switch to Principe Borghese as transformative: the flavor is simply in a different league.

Growing Principe Borghese is refreshingly straightforward, making it ideal for both novice and experienced gardeners. The plants thrive in full sun and well-draining, fertile soil, producing heavy crops in a remarkably short period—typically ready 70-80 days after transplanting. The determinate growth habit means plants fruit all at once, creating the abundant synchronized harvest perfect for drying in bulk. Plant deeply, stake lightly (the clusters will be heavy with fruit), and avoid overwatering—you actually want drier fruit for optimal drying results. The vines are compact and prolific, adapting beautifully to containers on a sunny patio or in full-sun garden beds. These are hardy plants with natural disease resistance, and they’re known for their heat and humidity tolerance, thriving even when other tomatoes falter. Start seeds indoors 6-8 weeks before your last frost, and by midsummer you’ll be harvesting clusters so abundant you’ll marvel at the abundance.

Imagine autumn and winter mornings when fresh tomatoes are a distant memory—yet your pantry is alive with the sun-captured essence of summer. Those dried Principe Borghese tomatoes you grew and preserved yourself become far more than food; they become proof that you can hold onto the garden’s generosity beyond the season. Every time you open a jar or reach for a handful of your own sun-dried tomatoes, you’re tasting the continuity of centuries-old Italian farming wisdom, grown by your own hand. This is not just heirloom gardening—this is culinary magic preserved. Grow Principe Borghese from seed, and join the lineage of gardeners who understood that the best things in life are worth drying, storing, and savoring.

Germination Guide

🌍 Italy (Puglia region)
Easy

Solanum lycopersicum 'Principe Borghese' is a classic Italian heirloom tomato from the Puglia region, prized for sun-drying due to its meaty texture, few seeds, and low juice content. Seeds germinate readily at warm temperatures (75-85°F), typically within 5-14 days with bottom heat and consistent moisture, requiring no pre-treatment. This vigorous, determinate variety is straightforward to propagate from seed and produces abundant small clusters of plum-shaped fruits ideal for drying, sauces, and fresh consumption.

Germination
Germination time
Expect germination in

5 – 14 days

Temperature

Min 60°C
Ideal 75°C
Max 85°C

Light
☁️ Indifferent

Substrate moisture
💧 Medium

Sowing depth
0.5 cm

Press seed
👆 Yes

Germination rate
75 %


Substrate & Container
Recommended substrate
Sterile seed-starting mix, well-draining potting soil

Recommended container
Seed trays or small containers with drainage holes


Growing Tips
Use a heating mat to maintain soil temperatures of 75-85°F for fastest germination (5-7 days). Keep soil consistently moist but not waterlogged. Cover seeds with a humidity dome until germination occurs, then remove immediately to prevent fungal diseases. Sow seeds 1/4 inch deep and press lightly into soil for good contact. Once seedlings emerge, provide bright light (14-16 hours daily) and maintain cooler temperatures (60-70°F) to prevent legginess. Remove humidity dome as soon as seedlings appear to reduce damping-off disease risk. Water from below rather than overhead to reduce disease pressure. Transplant into larger containers when the third set of true leaves develops (around 4-6 weeks after germination). Before transplanting outdoors, harden off seedlings by reducing temperature to 60-65°F and decreasing water for 2-3 days.

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