- Using a plastic garden flat, plant one seed in each cell, a quarter-inch deep into loose potting soil.
- Keep the tray outside to make sure it gets lots of natural sunlight, and water it enough that the soil feels damp but not soggy.
- After four weeks, the small plants will be ready to be transplant—plant them 18 inches apart in a garden, or in their own containers.
- Keep watering them so they stay at that damp-but-not-drenched level (just note that plants in containers will require more water).
- Thirty days after planting, you can start harvesting the individual baby greens from the outside of the plant, ideally in the morning when it's cooler out, and try to eat them the same day.
- When the weather turns cooler at the end of the summer, kale and some other leafy greens actually improve in flavor, becoming sweeter with the onset of fall.