Croup is also known as laryngotracheitis, a medical term that describes the inflammation of the trachea (windpipe) and larynx. Parainfluenza viruses are the typical root cause of the infection, but influenza (flu) and cold viruses may sometimes be responsible.
Harvest entire kale plants at 60 to 80 days after germination when they are full size and no longer growing larger. Gather the leaves of one kale plant upward and hold them in this position. Cut across the bottom of the plant, horizontally about 1 inch above ground level to harvest the entire plant for side dishes, main dishes, soups or stews. Place the plants in a container to transport them indoors for storage or use.
In warm-and hot-summer regions, plant kale in late summer for harvest in late fall or winter. In mild-winter regions, kale can be sown in fall for winter harvest. Planting and spacing. Sow kale seed Â½ inch deep spaced 3 inches apart; thin plants to 12 inches apart when they are 4 to 5 inches tall. Space rows 18 to 24 inches apart. Set transplants with crooked stems up to the first leaves.