We suggest Redbor Kale as a replacement. It offers similar colored ruffled leaves.
The Curly Roja Kale was the first organically available ruffled red kale! Open Pollinated and light green ruffled leaves with a purple tint and solid purple stems. Vibrant kale for the garden or landscape. Cold hardy and holds well after harvesting.
Germination: 3-10 days
Germination Temperature: Optimum soil temperatures 70-85ºF.
Seed Sowing Depth: 1/2” deep
Starting Indoors: 4-6 weeks before the last frost. Sow 2-3 seeds per cell/pot. Thin to the strongest seedling. Fertilize the seedlings every 7-10 days with a liquid or water-soluble fertilizer, diluted to ¼ of the suggested measurement. Transplant a week or two before the last frost. Space 12-18" apart. Sow in midsummer for fall crops.
Sowing Outdoors: Starting in spring when the soil temperature reaches at least 55ºF. Sow 2-3 seeds every 12-18”. Sow closer to harvesting baby greens. Thin to the strongest seedling per space. Sow in midsummer for fall crops. Germination is slower at lower soil temperatures.
Harvest: Pick young leaves starting at 8-10".
Tips: Curly Roja Kale should be planted into fertile, well-drained soil. Leaves become very sweet after frost. Use thinning’s or sow a heavily seeded row every 10-14 days for baby greens.