Cabbage – Mammoth Red Rock

Cabbage – ‘Mammoth Red Rock’

• Growing Temp 60°F – 75°F

• Days to Maturity 90-110 days

Ease of Cultivation and stunning color: ‘Mammoth Red Rock’ is a striking cabbage variety known for its large, vibrant red heads and excellent flavor. This variety is relatively easy to grow, making it a wonderful choice for home gardeners looking to add a pop of color to their vegetable garden. ‘Mammoth Red Rock’ can be enjoyed raw in salads, pickled, or cooked, providing not only visual appeal but also nutritional benefits.

Direct Sowing: For direct sowing, plant ‘Mammoth Red Rock’ seeds outdoors in early spring, about 2-4 weeks before the last expected frost. Sow seeds ½ inch deep and 2-3 inches apart in rows spaced 24-30 inches apart. Germination usually occurs within 7-14 days. This cabbage variety thrives in well-drained, fertile soil enriched with organic matter, so consistent moisture is essential through regular watering. Thin seedlings to about 12-18 inches apart once they are a few inches tall to allow for proper growth. Expect to harvest in about 90-110 days.

Early Sowing for Seedlings: To get an early start, sow ‘Mammoth Red Rock’ seeds indoors 6-8 weeks before the last expected frost. Plant seeds ½ inch deep in seed trays filled with quality potting mix, maintaining a temperature of 70°F – 75°F for optimal germination. Once seedlings have a few true leaves and the risk of frost has passed, transplant them outdoors, spacing them 12-18 inches apart in rows. Water the transplants well after planting to promote strong root establishment.

Harvesting: ‘Mammoth Red Rock’ cabbage is ready to harvest when the heads are firm and solid, typically around 90-110 days after sowing. To harvest, cut the head off at the base with a sharp knife, being careful not to damage the surrounding leaves. This variety can be stored for several weeks in a cool, dry place, making it an excellent choice for both fresh eating and longer-term storage.