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has focused on the cells of the reproductive tissue whose clarity recommends them for observation by premedical students and others probing the mysteries of genetics.
Spiderworts have undergone radiation experiments in laboratories such as Oak Ridge. Tennessee. in programs recording the effects of varied doses on living matter.
The preferences of gardeners changed the pattern of selections and showy flowers became of more importance than the ability to survive.
Modern garden catalogues offer a hefty list of garden choices. There are dwarf varieties to use in the foreground and plants with white, pink, red, blue, and magenta flowers from one to three inches across.
Each bloom fades quickly but is followed by a steady succession of new flowers from spring through early summer.
By then the grassy leaves become untidy and can be cut off to the ground. New growth will soon reappear, bringing more flowers in early fall until the arrival of frost.
Individual clumps of spiderworts grow rapidly and may be divided every third or fourth spring. Set new plants 10 to 15 inches apart in moist soil and partial shade.
The delicate flowers fade before the day is over, with the greatest show in the morning except on a day of
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