Black Plum tomato is a productive variety that easily finds its place in any garden. Its decorative, plum-shaped fruits, about 5 cm (2 in) long, ripen to a deep mahogany color with dark green shoulders. It offers a sweet and slightly tangy flavor, ideal for fresh consumption, sauces, or baking.

This semi-determinate variety combines compact growth with abundant and consistent production throughout the season. Its distinctive appearance and rich flavor make it an excellent choice for both gardeners and chefs.

Where to Grow Black Plum Tomatoes

Black Plum tomatoes grow well in zones 3 to 9. They prefer full sun exposure and well-drained soil. They are suitable for garden beds, raised beds, and large containers, with moderate staking to support the plants.

History and Traditional Uses

The Black Plum is prized for its unique appearance and versatility in cooking. Originating from Eastern Europe, this variety has become popular due to its reliable yields and complex flavor. It is particularly used for sauces, salsas, and fresh consumption.

Growing Information by Canadian Zones

Zones 8 to 9: Sow indoors in January or February. Transplant in April. Extended harvest starting in early summer.
Zones 5 to 7: Sow indoors from late February to mid-March. Transplant in May. Harvest from July to September.
Zones 3 to 4: Sow indoors late March or early April. Transplant after the last frost in late May or early June. Harvest from mid-July to early September.

How to Grow and Harvest Black Plum Tomatoes

Planting
Start seeds indoors 6 to 8 weeks before the last frost. Transplant seedlings 45 to 60 cm (18 to 24 inches) apart in nutrient-rich, well-drained soil.

Support
Provide moderate staking or cages to support the semi-determinate growth of the plants.

Watering
Keep the soil consistently moist without overwatering. Avoid wetting the foliage to reduce the risk of disease.

Pruning
Light pruning is recommended to improve air circulation and optimize fruit production.

Harvest
Harvest fruits when they are fully ripe, mahogany in color, and slightly firm to the touch.

Seed Saving Tips

Fruit Selection
Choose ripe tomatoes from healthy and productive plants.

Seed Extraction
Remove the seeds and their gel and place them in a clean container.

Fermentation
Add a little water and let ferment uncovered for 2 to 3 days, stirring daily to break down the gel.

Cleaning and Drying
Rinse the seeds thoroughly, then spread them on a clean cloth or sieve for complete drying.

Storage
Store the seeds in an airtight container in a cool, dark place. They remain viable for up to 5 years.

Certified Organic by
Islands Organics Producers Association (Cert#1962)