Manitoba Tomato (Solanum lycopersicum) is a hardy, early-maturing easy to grow heirloom tomato originally developed in the 1950s by the Morden Experimental Farm in Manitoba, Canada. Bred specifically for short growing seasons and cooler climates, it produces heavy yields of medium-sized, bright red fruits with excellent old-fashioned tomato flavor. Manitoba is ideal for northern gardeners or anyone seeking dependable early harvests without sacrificing taste. Its compact growth habit makes it a strong performer in both garden beds and large containers.
Common Names: Manitoba Tomato
Latin Name: Solanum lycopersicum
Type: Vegetable (Tomato)
Life Cycle: Annual
USDA Zones: 3 - 10
Stratification: Not Required
Germination Ease: Easy
Sunlight: Full Sun
Moisture: Consistently Moist, Well-Drained
Soil: Fertile, Rich, Loamy Soil with Good Drainage
Height: 24 - 36 inches
Spread: 18 - 24 inches
Color: Bright Red Fruits
Flavor Profile: Classic tomato flavor — balanced acidity and sweetness with a juicy, firm texture
Bloom Season: Summer
Companion Plants: Basil, marigold, onions, carrots, peppers
Climate Adaptability: Performs exceptionally in cooler, short-season climates; tolerant of variable weather
~ Sowing ~
When to Sow Outside:
Not recommended; tomatoes need warm soil and frost-free conditions.
When to Start Inside:
Start seeds indoors 6–8 weeks before the last frost date. Transplant outdoors after danger of frost has passed and nighttime temperatures stay above 50°F.
Days to Emerge:
7 - 14 days
Seed Depth:
1/4 inch deep
Seed Spacing:
Sow seeds 1 inch apart in trays; thin or transplant to 18 - 24 inches apart once seedlings have true leaves.
Row Spacing:
24 - 36 inches apart
Hardiness:
Frost-sensitive annual.
~ Growing ~
Soil:
Prefers fertile, loamy soil rich in organic matter. Amend soil with compost before planting. Avoid cold, waterlogged soil.
Watering:
Water deeply and regularly, keeping soil evenly moist. Avoid overhead watering to prevent disease. Mulching helps retain soil moisture.
Light and Temperature:
Thrives in full sun (6–8 hours daily). Optimal temperature range for growth is 65°F–85°F.
Maintenance:
Stake or cage plants to support fruiting stems. Prune suckers for better airflow and yield. Fertilize lightly with balanced organic fertilizer or compost tea every few weeks.
Container Friendly:
Yes, grows well in large containers (minimum 5 gallons) with proper support and regular watering.
~ Harvesting ~
When to Harvest:
Harvest 65–70 days after transplanting, when fruits turn fully red and slightly yield to gentle pressure.
How to Harvest:
Twist or snip fruit from the vine carefully to avoid damaging the plant.
Drying and Storing:
Store ripe tomatoes at room temperature, out of direct sunlight. Do not refrigerate for best flavor.
Edible Use:
Excellent for slicing, salads, sandwiches, and sauces. Manitoba tomatoes retain flavor and texture when cooked or canned.
~ Seed Saving ~
Seed Collection:
Select fully ripe fruits from the healthiest plants. Scoop out seeds and pulp into a jar with a small amount of water. Let ferment for 2–3 days to remove the gelatinous coating.
Seed Cleaning:
Rinse and dry seeds on a non-stick surface until completely dry.
Seed Storage:
Store in a cool, dry, dark place. Tomato seeds remain viable for 4–6 years under proper storage conditions.
~ Additional Information ~
Forage for Pollinators:
Tomato blossoms attract bumblebees and other pollinators for improved fruit set.
Origin:
Developed at the Morden Experimental Farm in Manitoba, Canada, in the 1950s for short, cool growing seasons.
Nomenclature:
Named after the Canadian province of Manitoba, reflecting its breeding for northern climates.
History:
Bred as a hardy, productive tomato for Prairie provinces, Manitoba quickly became popular among home gardeners for its reliability and flavor. It remains a favorite in northern gardens today.
Climate Adaptability:
Performs best in cool, short-summer regions but adaptable to a wide range of climates with adequate warmth.
