Starting Brassicas from Seed: Kale and Cabbage in Zone 9 This February

February is an ideal time to start brassicas like kale and cabbage in Zone 9. These cool-season vegetables thrive when started early, giving them a head start before the warmer months arrive. Proper planning and preparation can lead to a bountiful harvest later in the season.

Why Start Brassicas from Seed in February?

In Zone 9, the climate allows for an early start to brassicas. Starting from seed in February ensures the plants develop strong roots and healthy foliage before the heat of summer. It also extends the growing season, providing fresh greens during months when outdoor gardening is limited.

Choosing the Right Seeds

Select high-quality seeds suited for Zone 9. Popular varieties include:

  • Kale: Curly, Lacinato, and Siberian
  • Cabbage: Green, Red, and Savoy

Starting Seeds Indoors

Begin by sowing seeds indoors or in a protected greenhouse. Use seed-starting mix and plant seeds about ¼ inch deep. Keep the soil moist and place the containers in a warm, bright location. Maintain temperatures around 65-75°F for optimal germination.

Seedling Care

Once seedlings emerge, provide ample light, ideally 12-16 hours daily. Thin out weaker seedlings to ensure healthy growth. Keep the soil consistently moist but not waterlogged. Harden off seedlings by gradually exposing them to outdoor conditions before transplanting.

Transplanting Outdoors

In late February, when the risk of frost diminishes, transplant seedlings into your garden. Choose a sunny location with well-draining soil. Space kale plants about 12-18 inches apart and cabbage about 18-24 inches apart. Incorporate compost to enrich the soil.

Planting Tips

Water thoroughly after transplanting. Mulch around plants to retain moisture and suppress weeds. Keep an eye out for pests such as aphids and cabbage worms, and manage them promptly.

Care and Maintenance

Throughout the growing season, ensure consistent watering and fertilization. Use a balanced fertilizer every few weeks to promote healthy growth. Regularly inspect plants for pests and diseases, and take action as needed.

Harvesting

Kale is ready to harvest when leaves are tender and dark green, usually about 55-75 days after planting. Cabbage heads should be firm and about 12 inches in diameter, typically 70-100 days after transplanting. Use sharp scissors or knives to harvest leaves or heads, leaving some growth for continued production.

Conclusion

Starting brassicas from seed in February in Zone 9 is a rewarding way to enjoy fresh greens throughout the year. With proper planning, care, and patience, gardeners can enjoy a healthy harvest of kale and cabbage, enhancing their meals and gardening experience.