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tance with the flowering habits of this plant state that it should bedivided at least once every three years if an abundance of large bloomsis to be obtained. Such plants as the larkspur should be divided with great care everythree or four years and each division of this plant should be left witha good crown attached to which is a quantity of good fibrous rootgrowth. The greatest success in dividing perennials will be attained withthose plants whose roots can be readily pulled apart with no severeruptures. Those plants which have heavy roots like the larkspur andsome of the irises should be subdivided with much greater care.Biennials will renew themselves by seeding if the soil is not disturbedaround them to any great extent. A few perennials such as the yellowmarguerite and some of the hardy asters will also renew themselveseach year by seeds dropped from the parent plant. Every perennialgarden is benefited by a thorough spading over at least once in threeyears. When a garden is filled with perennials the spading does not ingeneral reach deep into the soil, nor does it cover the entire area. Thebest soil for these plants is one which is friable and not too compact.This is the reason for spading every two or three years. |
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