. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. gain seed, by plant divi sion, and by cuttings. Propagation by seed is generally not of use for the perpetuation of horticultural varieties though to a varied ex tent with different spe cies any variety tends to reproduce its varie tal characteristics more perfectly the longer it becomes established as lety. Ho
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. gain seed, by plant divi sion, and by cuttings. Propagation by seed is generally not of use for the perpetuation of horticultural varieties though to a varied ex tent with different spe cies any variety tends to reproduce its varie tal characteristics more perfectly the longer it becomes established as lety. How. some of our garden mbeUished With weeds wild corner. Asparagus and Boneset. plants have been separated into their present number of varieties or forms mainly by continual propagation by seed and plant selection, and such may be satis- factorily increased by seed. An example might be taken in the hollyhock, although, if a group be left to resow itself, or no seed selection be maintained, it will soon become mainly composed of single-flowered plants by reason of their greater seed production. In general, propagation by seeds is satisfactory for all established species and for such varieties and forms as have been thoroughly established either by nature's slow processes or by man's continual selection. Seed-sowing is not, however, always an easy way to increase many of our garden plants, as there are often a few small items necessary to know concerning a species before success can be assured. Seeds of some perennials remain dormant for a long season after sowing, and,in general,they are very much slower in starting than annuals. Some require more heat than others to germi- mte while others require a very cool soil. Many plants broaght into cultivation from foreign countries or milder parts of our own land do not produce seed which will remain sound over w inter in the soil, nor do seedlings of all hardv perennials withstand the colder season: for m t iiR( / // iier oiienlalis,
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