- You Will Get 50 Seeds Of Tomato Manitoba Heirloom Vegetable Seeds. - Watering: Light. - Manitoba Tomato Seeds is a Determinate tomato that was Developed in Canada. - The Manitoba Tomato thrives in cold climate areas with a short grow season takes about 60 days. - It is a early producer with high yields is a heirloom that was developed in 1950. - This tomato will have 6 ounce fruits on it with smooth skin great for West Coast areas.