Growing cabbage in Quebec can be a rewarding and delicious experience thanks to the cool climate, which suits this vegetable perfectly. By choosing the right varieties and caring for your plants, you can enjoy an abundant cabbage harvest from your garden. Here is a step-by-step guide to growing cabbage successfully 
Transplant the young cabbage plants outdoors after the last frost, once they have at least four true leaves and nighttime temperatures remain above 5°C. Space the plants about 45 cm apart in rows at least 60 cm apart.
Cabbage prefers well-drained soil rich in organic matter, with a pH between 6.0 and 7.0. Add compost before transplanting the young plants.
Cabbage needs regular watering to keep the soil evenly moist. Soil that is too dry can cause the heads to split and lead to uneven growth. Avoid overwatering to help prevent root rot.
Apply a layer of organic mulch around the cabbage plants to help retain soil moisture, regulate temperature, and reduce weed growth.
Apply a balanced organic fertilizer after transplanting to encourage vigorous growth. You can also use a nitrogen-rich fertilizer every four to six weeks during the growing season.
Cabbage can be attacked by pests such as cabbage white butterflies and cabbage root maggots. Use insect netting to prevent them from laying eggs on the leaves, and inspect the plants regularly so you can find and remove larvae.
Cabbage is generally ready to harvest about 70–100 days after transplanting, depending on the variety. Harvest the heads when they are firm and well formed. Use a sharp knife to cut each head at the base, leaving a few outer leaves on the stem.
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