CHE REFERENCE LIBRARY - Pole Shift Survival Information

68 THE NURSERY-MANlJAL
stock species of herbaceous border plants - as aquilegias,
hemerocallis, helianthus - are cdmmonly grown in permanent
small areas by nurserymen, and plants are cut out of the
plot as orders are received. If, however, the nurseryman is
making a special “ run” on any plant, he gets his stock by
dividing up the crowns or rootstocks into small portions, and
then growing t.hese for a season in specially prepared beds, or
sometimes in pots.
Recent experience has shown that etherization of plants
may have important influence on the stimulation of offsets in
certain species ; but this and similar treatments are yet too
little untlerstood to warrant including them in a manual of
standard practices.