Growing Cabbages in Containers: A Guide
Growing cabbages in containers can be a practical alternative to in-ground planting, especially when conditions aren’t ideal. Here’s a simple guide to get you started with container-grown cabbages, covering essential aspects like supplies, potting medium, and care tips.
Why Grow Cabbages in Containers?
While cabbages traditionally grow in the ground during cooler seasons, container gardening offers more control over growing conditions, including water, fertility, and light. This can be particularly beneficial if you’re starting later in the season, like in mid-May.
Supplies Needed
To grow cabbages in containers, you’ll need:
- Containers (5-10 gallons for single plants, larger for multiple plants)
- Cabbage seedlings
- Potting medium
- Fertilizer
- Water
- Optional: Hoops and insect netting
Choosing the Right Container
Select a container size based on the variety of cabbage. For compact varieties, a 5-gallon container is sufficient. Larger varieties may require 10-gallon containers, and you can grow multiple small cabbages in a 20-gallon container. Avoid overcrowding, as it can prevent proper head formation.
Potting Medium: The Foundation for Success
Cabbages need high fertility and proper drainage. Choose a well-draining potting mix that retains enough moisture without drying out too quickly. A good option is the Glee potting mix, which offers better water retention and air circulation, leading to improved root development. Adding compost or aged manure, along with a naturally derived fertilizer, will provide the necessary nutrients.
Planting Your Cabbage Seedlings
Before planting, mix the potting medium with aged manure at a 4:1 ratio. Fill the container almost to the top and thoroughly saturate the soil to prevent settling after planting. Transplant the seedlings at the same depth as they were in the seed tray, adding a small amount of fertilizer to the planting hole.
Watering: Keeping Cabbages Hydrated
Water is crucial, especially as temperatures rise. Aim for about one inch of water per week, checking soil moisture regularly. Stick your fingers about two inches into the soil; if it’s dry, it’s time to water. Deep, infrequent watering is better than shallow, frequent watering. Consider using natural mulch, like grass clippings, to retain moisture.
Protecting Your Cabbages
Insect netting can help protect your cabbages from pests like cabbage worms, and also deter hungry animals. Cover your plants immediately after transplanting to maximize protection.
Sunlight and Location
Cabbages thrive in full sun, about eight hours a day. However, during the hotter months, they can benefit from some afternoon shade. Place your containers where they will receive morning sun but be shaded during the hottest part of the day.
Choosing the Right Variety
Opt for heat-tolerant or early-maturing varieties, particularly in warmer months. Compact varieties are ideal for containers. A good choice is the Tiara variety, which forms small, one to two-pound heads and matures in about 60 days.
Conclusion
Container gardening allows for flexibility and control, making it easier to grow healthy cabbages even outside the traditional growing season. With proper care, you can enjoy fresh cabbages well into the season.