Annual (botany)

Definition and stakes

Portrait of L. H. Bailey L. H. Bailey,  Beginners' botany (1921)

“ True annuals reach old age the first year. Plants which are normally perennial may become annual in a shorter-season climate by being killed by frost, rather than by dying naturally at the end of a season of growth. They are climatic annuals. Such plants are called plur-annuals in the short-season region. Many tropical perennials are plur-annuals when grown in the north, but they are treated as true annuals because they ripen sufficient of their crop the same season in which the seeds are sown to make them worth cultivating, as tomato, red pepper, castor bean, cotton. ”
Source: Gutenberg

Sutton & Sons Ltd.,  The Culture of Vegetables and Flowers From Seeds and Roots

“ But our short winter days do not maintain a rich colour, and it will in almost every instance give more satisfaction if treated as an annual, enjoying the beautiful and varied foliage during summer and autumn, and consigning the plants to the waste-heap as wintry days draw near. We do not advise the sowing of seed earlier than March, because a considerable amount of daylight is necessary to the development of rich tints and diversified markings in the foliage. ”
Source: Gutenberg

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