Summary: 1  Rubbing alcohol (isopropyl alcohol) is the worldâs most commonly used skin antiseptic. 2  Rubbing alcohol is made from coal gas and water. In the United States, manufacturers also use a sulfuric acid in the manufacturing process, and tiny amounts of sulfuric acid remain in the finished product.
Frost Tender or Heat Tender. The basic definition of a tender plant is a perennial plant that will not survive the winter outdoors because it is sensitive to frost, but some plants are also labeled as heat tender.ost plants classified as tender do not thrive in cold temperatures, while those classified as hardy can survive wintry conditions, although the lowest temperature these plants can handle varies from plant to plant.
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter-lived annuals and biennials.The term is also widely used to distinguish plants with little or no woody growth from trees and shrubs, which are also technically perennials. perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter-lived annuals and biennials.