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Exhibition Biennials Held: MANY BIENNIALS flower in early and midsummer, thus usefully filling an awkward gap that can occur between the spring and summer flowers. Like annuals, they are temporary plants which should be pulled up and put on the compost pile when they have finished flowering. Also, as with annuals, though it's easy enough to save seed of most kinds it is usually impossible to prevent cross-fertilization of different varieties, as a result of which home-saved seed produces only a mongrel population. The distinction between annuals, biennials and herbaceous perennials is not always clear-cut since sometimes varieties of one group can be treated as if they belonged to one of the other groups; hollyhocks (Alcea), for example, can be grown as annuals, biennials or short-lived perennials. However, to be sure of a regular succession of biennials it is necessary to sow seed every year at the correct season.
The Whitney Museum of American Art, The Metropolitan Museum of Art, and the Museum of Modern Art in New York City organize local and national competitions in water colors. The International Water Color Exhibition biennials held Biennials are held at the Brooklyn Museum in New York City, and similar shows are held in the Art Institute, Chicago, 111., and other major museums.
Consult Whitney Museum of American Art, A History of American Watercolor Painting, catalogue, with introduction by Alan Burroughs (New York 1942); Goodrich, Lloyd, American Watercolor and Winslow Homer (New York 1945). General histories of American painting, such as Edgar Preston Richardson's Painting in America (New York 1956), mention specialists in water-color painting. For current developments, consult catalogues published by the museums.
Plants are called annuals, biennials or per-nnials, according to the length of time the root jves, but the differences are not always absolute, .rid are often changed by cultivation. Perennials, >uch as quack grass and peony, often have thickened, tuberlike roots, in which nourishment is stored during the growing periods, to be drawn upon when the plant flowers. Biennials such as beets and carrots show similar development. |
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