Rio Grande Red Cabbage is a hybrid red cabbage variety known for the large heads it produces. In a university study at LSU, Rio Grande outperformed 8 other red cabbage varieties and was consistently the largest. Heads average 4-5 lbs and have a red exterior and interior. Rio Grande Red Cabbage heads have large wrapper leaves to protect the harvestable portion of the heads, which have a superb, crisp texture that’s great raw or cooked. Rio Grande is considered an all-season variety as it can be grown year-round in many climates.
Cabbage will grow best in areas where weeds are kept to a minimum. Cabbage is moderately frost-tolerant and performs better when planted in cooler weather. Cabbage will tend to bolt in warmer temperatures. Plant cabbage early in spring for a late spring/early summer harvest, or plant in late summer/early fall for a fall harvest. Cabbage are heavy feeders and require a considerable amount of nitrogen for larger heads. For best results, inject or soil drench with a balanced fertilizer at least once every two weeks. If smaller heads are desired, less fertilizer will be adequate.
Rio Grande may be direct-seeded or transplanted, although we suggest transplanting. Transplanting allows for more consistent plant spacing and prevents seedlings from competing with weeds in the early stages of the plant. We recommend starting transplants 3-4 weeks before the desired outdoor planting date. Rio Grande Red Cabbage transplants grow great in our heavy-duty seed starting trays, where they develop a solid root ball with roots that are trained to grow downward. Plants are ready to go in the ground when they can be easily pulled from the cells in the seed starting tray.
Rio Grande Red Cabbage Planting Information
Planting Method: direct seed or transplant
When to Plant: early spring and fall
Planting Depth: 1/4″
Seed Spacing: 12″
Row Spacing: 2-3′
Days to Maturity: 75
Disease Tolerance: None