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.
Baby kale leaves may be ready for harvest in as little as 25 days after planting but larger leaves will take longer. When to pick kale will depend on the use planned for the leafy green. Learning how to pick kale ensures the kale is fresh; you can use the baby kale harvest for leaves in a few salads.