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Cabbage Mammoth Red Rock Seeds
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Cabbage Mammoth Red Rock Seeds - Reliable Red Cabbage for UK Gardens.
Grow impressive, large red cabbages in your Southport garden with Mammoth Red Rock seeds. This variety is known for its reliable growth and ability to produce well-sized, colorful heads in UK conditions.
Seed Quantity:
Seed Information
- Plant Type Vegetable
- Organic Yes
- Growing Difficulty Moderate
- Germination Time 7-14 Days
- Harvest Time 120-150 Days
- Best Season To Grow Spring / Early Summer
- SunLight Needs Full Sun
- Water Requirements Medium to High
- Height Of Maturity 30-45 CM
- None GMO Yes
- UK Native No
Cabbage Mammoth Red Rock Seeds
Grow large, deep red cabbages with these Mammoth Red Rock seeds. Ideal for salads, coleslaw, and cooking.
Growing Instructions
Sowing Time:
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- Indoor Sowing (for an earlier crop): Sow indoors from February to April, approximately 6-8 weeks before the last expected frost in your region.
- Direct Sowing (for a later crop): Sow directly outdoors from April to June.
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Sowing Method:
- Indoor Sowing: Sow seeds about 1cm (½ inch) deep in modules or seed trays filled with good quality seed compost. Sow one seed per module.
- Keep the compost moist but not waterlogged.
- Place the trays in a cool greenhouse or on a well-lit windowsill. Aim for a temperature of 10-18°C (50-64°F) for germination.
- Once seedlings have developed their first true leaves, thin to one strong seedling per module if needed.
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Germination: Cabbage seeds typically germinate within 7-14 days.
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Growing On (Indoor Sown Seedlings):
- Once seedlings are large enough to handle, transplant them into individual 7.5cm (3-inch) pots.
- Continue to grow them in a cool, well-lit environment.
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Hardening Off (Indoor Sown Seedlings): Before transplanting outdoors, gradually acclimatize the young cabbage plants to outdoor conditions over 7-10 days. Place them in a sheltered spot during the day and bring them back indoors at night, gradually increasing the time they spend outside.
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Planting Out:
- Transplant outdoors from late spring to mid-summer, once the risk of hard frost has passed and the plants have 4-6 true leaves.
- Choose a sunny spot with firm, well-drained soil.
- Red cabbage prefers a soil pH between 6.0 and 7.5. Incorporate plenty of well-rotted organic matter (like compost or manure) into the soil before planting.
- Space plants about 60-75cm (2-2.5 feet) apart to allow for their large size.
- Water plants well after transplanting.
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Direct Sowing:
- Prepare the soil by raking it to a fine tilth.
- Sow seeds thinly, about 1cm (½ inch) deep, in rows spaced 75cm (2.5 feet) apart.
- Thin seedlings to 60-75cm (2-2.5 feet) apart once they are large enough to handle.
Care Instructions
Watering: Water regularly, especially during dry spells and when the heads are developing. Consistent moisture is important for good head formation and to prevent splitting. Avoid letting the soil dry out completely.
- Feeding: Cabbages are moderate to heavy feeders. After transplanting, you can give them a feed with a balanced general-purpose fertilizer. Follow the manufacturer's instructions for application rates. A later feed when the heads are forming can also be beneficial.
- Weeding: Keep the planting area free of weeds, as they compete for water and nutrients. Regular hoeing or mulching can help. Be careful not to damage the shallow roots of the cabbage plants when weeding.
- Pest Control: Cabbage is susceptible to several pests, including cabbage white butterflies (and their caterpillars), cabbage root fly, slugs, and aphids.
- Netting: Using fine mesh netting over your cabbage plants is an effective way to prevent cabbage white butterflies from laying eggs.
- Cabbage Root Fly: Use brassica collars around the base of the stems when planting out to deter the fly from laying eggs at the base of the plant.
- Slugs: Employ appropriate slug control methods.
- Aphids: Encourage beneficial insects or use insecticidal soap if infestations are heavy.
- Club Root: To minimize the risk of club root, ensure good soil health, drainage, and follow crop rotation. Liming the soil if it's acidic can also help.
- Harvesting: Cabbage 'Mammoth Red Rock' is typically ready for harvest from late summer to autumn, depending on the sowing time and your local climate. The heads should feel very firm and dense when gently squeezed. The red colour will also be well-developed. Cut the heads with a sharp knife at the base of the plant. Red cabbage can often be stored for a good amount of time in cool, dry conditions.
Enjoy growing your impressive and colourful Cabbage 'Mammoth Red Rock'!
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