CARE OF PLANTS
Temperature, humidity, soil, fertilizing, potting—almost without exception, plants growing under artificial light need the same care as window-garden plants. But since the light is an artificial substitute for natural sun and light, watch for signs that the plants are not entirely satisfied with it. When they stretch out, get long and lanky, or the foliage has a weak, wan color, set the plant up closer to the tubes, or over toward the center where the light is strongest. You might do well to make room by shifting some of the plants that have been in the center. Sometimes when a plant has too much light it will become stunted. Until a more exact rule book is written, you will have to use your own good common sense.
Here is the big worry many growers have; the failure of their pets to flower. More often than not that means insufficient light, insufficient red light, or perhaps both.
As of this date it is probably ten years since we first started toying with plants under artificial lights. I say “toying” because it was just that—purely for fun. We kept no records. When frost was in the air we dug up flowers and brought them indoors. My husband even brought in eleven goldfish which he feared would be glacéed in an outdoor pool. We put everything under lights with the fish in terrariums. Eventually he spent thirty dollars for a pool in an untidy corner of the living room. Thirty dollars, not counting the electric bill, I felt was a little expensive for a dollar’s worth of goldfish. I sold twenty dollars worth of photographs of that pool and then included one of them in my book All About Vines and Hanging Plants. Eventually he allowed me, very grudgingly, to place episcias around the pool. Mites moved in on them. He sprayed for the mites and killed all of the fish. He replaced the fish with eleven others. Thus the cycle continued.
All the time we had those indoor plantings our neighbors kept asking us what plants were good for lights and what lights were good for plants. Frankly, we couldn’t answer. Ten years ago that book hadn’t been written.
We tried just about everything less than five feet tall. We had wonderful results with African violets, begonias, orchids, and gesneriads. We even had a morning glory which singed itself on a steam pipe. All of them loved the kilowatts.
(In Chapter 6 I have indicated certain plants which are suitable for propagation under artificial lights.)