Brassica oleracea
DESCRIPTION
This is an evolving mix of cold-hardy kale. Embracing the “landrace” concept, which involves deliberate planting of a diverse population of seeds in close proximity, allowing them to cross. As we save seeds from those plants that survive winter in Oshkosh, Wisconsin, we are creating a mix of seeds that is adapted to growing well into the late fall and early winter. Most winters, the above-ground portions of the plants will die back eventually, but roots that live will grow new leaves early in the spring. Gardener can pick and enjoy those leaves before the plant starts to flower and make seed. We hope local gardeners will harvest the seed and return some to OSS at the “Seed Sorting” event in the fall.
PROVENANCE
This seed has been grown in Oshkosh.
GROWING RECOMMENDATIONS
Direct sow, 1/2 inch deep, anytime from early spring through mid-summer. Kale needs protection against rabbits. To control cabbage butterfly larvae, use organic gardening methods such as BT. For more information, see our guide to organic pest control.
SEED SAVING INSTRUCTIONS
Kale is a biennial, which means it makes seed in the second year of growth. If you want to harvest seed, let the second year plants flower and develop seed pods. Kale will cross-pollinate with other brassicas, especially collards. If you are planning to return seed to OSS for redistribution as part of our mix, we ask that you not let collards flower at the same time as your kale.
Once developed seeds are starting to dry, the plants might need netting to discourage birds from harvesting the seeds before you can. When most seed pods have turned brown and dry, the plant stems can be cut and placed in a bucket or paper bag upside down (to catch seeds that fall out). Seeds will still pull energy away from the cut stems as they finish developing/drying. Store the cut off plants away from direct light, wetness, and mice. When completely dry, seed pods can be crushed with fingers to release seed. Or, bring to OSS’s fall “Seed Sorting” event for processing with others’ contributions.