CHE REFERENCE LIBRARY - Pole Shift Survival Information

420 THE NURSERY-MANUAL
Shortia. Dia.ptwsiacece.
Propagated by seeds when they can be collected, by division
and runners.
Sibinea. Rosace~~
As for spirzea, with which it is frequently united: seeds and
layers.
Sicana. Cucurbifuce~e.
Annual frost-tender vines, grown from seeds.
Silene (Campion. Cat&fly). Caryoph$acece.
Propagated by seeds, division and cuttings. seeds are sometimes
sown in autumn, of the annual kinds, to insure early bloom.
Silphium (Rosin Plant. Compass Plant). Compo&ce.
Multiplied readily by seeds and by division.
Sinningia. Gtmeriucrae.
The only well-known member of the group is the gloxinia of
horticulturists, which see.
Sisyrinchium (Blue-Eyed Grass). Iriducm.
Increased in spring by seeds and by division.
SEmmia, t2 u fuct~~
Increased by seeds, sown in fall or stratified, in a frame ; also by
layers, and by firm cuttings in heat.
Skirret (Siu tl~ S iswum). lim.bell~ifrrce.
Increased by seeds, sown in spring or fall, offsets, or division of
the plants.
Smilax (Green-Briar j. Liliucece.
Young plants are obtained by seeds, by la.yers, and by division.
For “ smilas” or Boston-vine of florists, see Aspurug~us, page 244.
Snapdragon :
Ayt fir~hi~u~m.
Sobralia. U&l i&~lp.
Grown by division of strong plants when repotting.
See Orchids.
Solandra. ~olwnucm.
Multiplied by seeds sown in spring ; by cuttings of firm young
shoots taken with a heel and placed in slight bottom heat.