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.
Geraniums in the flowering genus Pelargonium are tender perennials, meaning they can be grown as perennials in areas where the temperatures do not drop below freezing and as annuals in colder climates. If you live in U.S. Department of Agriculture plant hardiness zone 10b, you can grow them outdoors all year round.