CHE REFERENCE LIBRARY - ZetaTalk

THE NtJRSERY-LIST 337Hyd.rangea, I-Iortcnsia. ~‘insifrqt~r~~.Seeds may be employed when they are produced ; but usuallythe hardy speck5 ;w propagated by green cuttings in summer,under glass (seVou Ii& 7 wood, usually in late winter. Layers are occasionallyemplo)vetl, ant1 suckers can be separated from some species,Sometimes the hard>, species are forced for purposes of propagationby cuttage. II. qrtrwifoliu is propagatecl by little suckers or&’ root pips.‘* 11. pmic~~~lu~tu var. yrandiJEo~ can be propagatedeasily from the >-owl ,:’ wood, taken in June and planted underglass.Hydrastis (Goldenseal). ticrnl~,}~.c1c,lu,clra7.Seeds sown in autumn or spring in a well-protected shady placeshould grow rcadilj-. Old plants or colonies may be divided.Hydriastele. l+rl WC’VW.I’ropagated by SWlS. See Pnlms, page 377.Hydrocleis (\Yatt~r-Poppy). Blctorr~~rc~.Propagated 11)~ tlividing the rooting sterns.Hydrocotyle (\Yater Pennywort). liudw/hfer~.Increased !)I’ seeds, cuttings or layers. Usually spreads by the ’rooting stems.Hylocereus (separated from the old genus Cereus).For propagation, see CJncfi, page 261.CactacecE3.Hymenocallis. -4 ~r~(ir!~llidnceaf.Increased 1,~ ofscts from the bulbs. Treated the same astlmaryllis and paneratium, which see.Hymenophyllum (Filmy Fern). ~~!!~~?,c~?Loph?lllacE~.Propagated 1,~ spores ant1 I))7 divicling the roots. See Fen2s.Hypericum (St . J ohn’s-\l’or t ). Ily ycricacm.Most of the species grow readily from seeds. Some of them producerunners that may be used as cuttings or layers. The shrubbykinds are handled by cuttings of green wood under glass in summer.Division may be practiced in some cases, and suckers may beremoved wl1e11 thy are produced.z