HORTICULTURE

Detailed explanation-1: -Hardiness of plants describes their ability to survive adverse growing conditions. It is usually limited to discussions of climatic adversity. Thus a plant’s ability to tolerate cold, heat, drought, flooding, or wind are typically considered measurements of hardiness.

Detailed explanation-2: -Some plant move water/sugar/sap into the roots and/or into the spaces between cells, where it is less likely to freeze or cause damage if it does freeze. Enter dormancy. Some plants reduce or nearly stop growing. This helps plants conserve energy and food, as well as reduces the amount of water they need.

Detailed explanation-3: -Cold hardiness is the ability to resist injury during exposure to low temperature. Cold tenderness is the opposite of cold hardiness. Cold injury is the killing by low temperature of some part of the vine.

Detailed explanation-4: -A plant described as frost hardy can survive a temperature of-5°C. A plant described as half hardy can only stand temperatures as low as 0°C. A plant described as tender will not survive temperatures below +5°C.