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Garden Glossary |
Hardiness
Horticulture expert Dr. Lelia Kelly defines the gardening term hardiness. Usually this refers to cold hardiness or the ability for a plant to withstand cold temperatures. USDA plant zones are based on how cold it gets in the winter which then determines how hardy plants need to be if planted in that zone. A plant that is only hardy to 10 degrees will die if the temperature gets lower. Another kind of hardiness is heat hardiness which determines how hot of temperatures the plant can tolerate.
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Heirloom
Horticulture expert Dr. Lelia Kelly defines the gardening term Heirloom. An heirloom is a plant variety available unchanged for many years. There are many different ideas about exactly how long that needs to be. These are plants that will breed true from generation to generation. They tend to be good reliable varieties.
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High Tunnel
Horticulture expert Dr. Lelia Kelly defines the gardening term high tunnel. A high tunnel is a sort of greenhouse. It is usually a long unheated arched structure covered by a sheet of plastic. Farmers and gardeners use high tunnels as season extenders to grow crops earlier in the spring or later in the fall then they could otherwise. In high tunnels plants are usually grown in the ground.
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Hybrid
Horticulture expert Dr. Lelia Kelly defines the gardening term hybrid. A hybrid is a plant that has been cross-pollinated or bred to emphasize certain traits. Usually a hybrid is created by people not nature. It is a cross between two different parents to try to get the best characteristics of each. Hybrids will often not breed true; their offspring will not be the same as the mother plant. To get another plant you must go back and cross the two parents again.
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