The Garden Magazine, June, 1922 



255 



6. A three-year group 

 (incomplete). To the 

 right of A there is seen in- 

 distinctly a weak young 

 branch suppressed by 

 being too deep in the soil 

 (Right) 



7. Compare the plant 

 below with Fig. 

 They are the same 

 but this was 

 planted too deep 



5. The parent rhizome A was 

 deeply planted and the two 

 branches had to struggle to 

 get the daughter plants to the 

 surface. Hence the elongated 

 growth. There is another buried 

 plant at B 



in Fig. 2. This group is composed of the mother plant and four 

 daughter plants of various sizes. Unless standard divisions 

 such as are represented in Fig. i develop to the stage indicated 

 by the plant shown in Fig. 2 during the summer and autumn 

 months, no flowers can be expected the following May and 

 June. 



Under favorable conditions of growth, the one-year group of 

 the autumn of 19 19 and the spring of 1920 developed by June 

 into the double standard division group shown in Fig. 3. It 

 will be noted that the small daughter plants shown at the sides 

 in Fig. 2 have, as shown in Fig. 3, developed into standard 

 divisions of the same size as shown in Fig 1. This develop- 

 ment took place in just one year and resulted in two standard 

 divisions from one. The leaves of the parent plant shown in 

 the one-year group have given way 

 to the flowering stem still attached 

 to the parent rhizome. 



Left undisturbed, this double stan- 

 dard division group of June, 1920, 

 developed by late September into 

 the sturdy two-year group shown 

 in Fig. 4. The large, plump rhizome 

 shown in Fig. 3 had by autumn 

 become largely absorbed by the two 

 daughter groups. The flowering stalk 

 is withered and ready to fall away. 

 This group, it will be noted, is made 

 up of two one-year groups such 

 as are shown in Fig. 2 held together 

 by the parent rhizome. 



By June of 1921, each of the two 

 one-year groups, making up the two- 

 year group, developed into a double 

 standard division group (as shown in 

 Fig. 3) still connected by the grand- 

 parent rhizome. 



The group shown in Fig. 6 is not 

 entirely complete, but from it can 

 be secured an accurate conception 

 of what a three-year group looked 

 like in the autumn of 192 1. One 



two-year group, in this 

 instance made up of 

 three one-year groups, 

 is attached to the 

 grandparent rhizome 

 indicated at the letter 

 A. If another two-year 

 group had been at- 

 tached to the grand- 

 parent rhizome at the 

 right, this would have 

 been a complete three- 

 year group. The three- 

 year group is double 

 the size of a two-year 

 group and four times 

 the size of a one-year 

 group. 



From the appearance 

 of the half of the three- 

 year group as shown in 

 Fig. 6, it is clear that 

 the complete group 

 would form a more 

 or less complete circle 

 around the grandparent rhizome. The grandparent rhizome 

 is finally completely absorbed, or it decays, leaving a vacant 

 space in the circle. As the parent rhizomes become grand- 

 parents and great grandparents they too disappear; and since 

 the new growth is always outward there results a slowly but 

 ever increasing circle, provided space is available to continue 

 expansion in this way. 



Only from the groups which have reached the stage of devel- 

 opment in the autumn of 1921 as shown in Figs. 2, 4, and 6 can 

 bloom be expected in 1922. The plant shown in Fig. 2 may be 

 expected to produce one flowering stalk; that in Fig 4, two 

 flowering stalks; and that shown in Fig. 6, three flowering stalks. 



The Interrupted Cycle. 

 this method is to secure as 

 rapid increase in the number 

 of plants as possible. Very 

 productive soil and adequate 

 water supply are necessary. 



The chief aim in following out 



What the dealer 

 calls a "small division" 

 used in propagating a 

 novelty or rare vari- 

 ety. A perfectly good 

 one below. On the 

 right (9) a weak small 

 division 



10. This plant (above) is same 



age as one shown at Fig. 2, but 



shows delayed development 



from deep planting 



1 1. Here is a strong one-year 

 group that has had opportunity 

 to develop daughter plants in 

 profusion. It was not planted 

 deeply. Remember that an 

 ris should sit in the soil like a 

 duck on the water 



