CHE REFERENCE LIBRARY - ZetaTalk

THE NURSERY-LILST 393P. nii:oszr.s grows readi\)- from root-cutkings, I-‘. ncidus and P. Em-Mica may be grown from seeds ; the latter also by layers.Phymatodes. l’nl~~~~diwm.Spores and division. See Fmhs, page 312.Physalis (Ground or Winter Cherry. St,rawberry Tomato. HuskTomato). Ic;@l~?l~cf'~.Propagated by se&, sown out,doors or under cover ; perennialsby division of the rhizomes and soft cuttings.Physocarpus (Ninebark). Kj~scccc~~.Propagated hy harclwood or greenwood cut,tings and by seeds, asfor spiraea.Physostegia. Labinfn.Division of strong c:iumps ma.y be made readily ; also grown fromSW&, a,~ are other herbaceous perennials.Phyteuma. Cam pan dacm.Propagated freely by seeds, and division in spring.Phytolacca (Stoke. Poke), I’h~~to7afcacc~.Propagated by means of seeds, or by division of the thick roots,usually the former.Picea (Spruce). /‘iltnc’fff.Propagated l-):7 seeds, sometimes h~v layers, sometimes by grafts ;also by cuttings of recent. wood. Seedlings must be shaded the firstyear. The sp&es are easily grafted. P. cxcdsn (Norway spruce)or P. canadcnsis (rtlh~) makes a good stock ; the veneer-graft,under glass, in winter, succeeds better than any method of outdoorwork practicable in our climate ; if t,he graft is inserted near thebase in young plants, it is quite possible to obtain them on theirown roots after a few transplantings, Side shoots can be used ascions, and if started in time will furnish good leaders ; sometimes aleader ,is developed more rapidly by bending the plant over atnearly a right angle, when a stout bud ma,y st,art from the stem.The balsam fir is- a.lso a good stock for flat-leaved species. SeeA him.Pieris. lhkY?E.Propagation by seeds and layers and the evergreen kinds bycuttings of almost, ripened wood in August under glms, kept