CHE REFERENCE LIBRARY - ZetaTalk

332 THE NURSERY-~~~,42\i’i,T,4LHelipterum, including Rhodanthe. C)onr~~.sifcr~,Seeds sown in earl~~ spring under cover, or directly in the opengaI&n.Helleborus (Black Hellebore. C.~hristmas Kosc). fZn,l.1L~2.(‘221Mlf(r.Seeds sown as soon as ripe may br used for the obtaining ofnew varieties. Root -divisions are usually employed. Se IJ’WZtrunzfor white and green hellebore.Hemerocallis (1)a.y Lily). I,ilinc~ce.Propagated by division of the clumps, which should also be(ii\-idcd for the goocl of the plant,. Seeds may be used, sown assocn as ripe, of such kinds as produce them ; t,he J’oung plantsshould remain in s~rl-hoses until the following spring, when theym;ly 1x1 planted out in rows. Fig. 50.Hepatica. I-!rr~ ~17~~211~~~.Propagated by- division of the roots in autumn ; also by seedssown very shallow in a moist shaded soil.Heracleum (C’ow-Parsley . ( ‘ow-Parsnip). Irnlbfll~fcr@.Increased by se& or division, the former usually growing readilyif fresh.Hernia& Caryophlltlnrrt.Propagated by ctivision and seed.Hesperis (Iktnc’s I~iolet . iiotrkct). CIVW(~NW.The single kinds ;ire grown from SC& ; the double forms (whicharc most prized) by dividing the roots, and by cuttings.Heterocentron. nlr~(rt.sfo~l/ncr~,r.Propagation a~ for centr:rdenia, which see.Heuchera (Alrrrn Root). Sasifrnguc~~~.Increased 1)~ dividing the clumps in spring or autumn, and also byseeds.Hevea (ilrazilian Rubber-Tree). EuphorbincrcP.Propagated 1))~ seed, sown as soon as ripe ; also by cuttings.Hibiscus. Jlulr~c~.( ‘uttings of grec*n wood are cotnmonly used, made in summer forhardy Ypccies or in early spring for tender ones. Cuttings of