Hardening Off

Have you bought plants at the greenhouse, set them out in the garden or flowerbed and they died? It is the same as you wintering in your house then going outside on a nice spring day and ending up with one heck of a sunburn. Plants are the same in which they will get burnt by the sun because their tissues are soft from growing in a protective environment. Wind will whip their stems along with “burning” their soft leaves. The solution is called “hardening off” where you gradually toughen the plant.

Set them in dappled shade for a couple of days then move them to a sunny place for a couple of more days. Take them inside if the night gets under 50 degrees. Make sure to water them every day. I use a cold frame to place the plants after growing under lights in the house. Gradually I place the plants into another cold frame in the sun. If the nights get cold, I cover the boxes.

If you are in a hurry, make sure you plant on an upcoming cloudy, cool day or several cool days. My mother used to place cutout coffee cans around the little plants to shade and protect them from cutworms. Some use a couple of shingles placed on the south and west of the plant.

Growing vine crops is easy. I start the seeds indoors in 3 or 4-inch peat pots. As soon as they emerge, I move them out to the cold frame. After they get their first or second true leave, I move them to the garden.