A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far.
Others, such as buckwheat, are very frost-tender. The cover crops listed here are widely adapted and can be grown in most areas of the United States, either as a summer or winter cover crop, depending on where you live. Rye This crop comes in two different types: annual rye and cereal rye. Both have their advantages.
Tropical marginal plants must continue to grow during the winter months. Growth will be reduced considerably as daylight hours diminish. Umbrella Palm, Dwarf Papyrus, Little Giant Papyrus and White Arum lilies will survive the winter indoors and make excellent houseplants.Other varieties are best treated as annuals.hile tropical marginal plants do require more work than their hardy cousins, they can add a spectacular splash of colour to your water garden, making them well worth the effort. Many of the tropical varieties listed here may be kept indoors as houseplants during the winter, while others should be treated as annuals.