Appendix 



363 



drained pots when about two inches tall, and 

 when the ground becomes warm to ordinary 

 garden soil in a moist place. They generally 

 do better if the seed is sown in the open 

 ground where the plants arc to remain. They 

 need about a square foot of space each and 

 should be planted in masses. 



Poppy, Plume {Bocconia cordata). Sow 

 seeds in a mild hotbed or greenhouse in late 

 winter or early spring. Transplant while 

 small to pots, and when the weather has 

 become settled transfer to the open ground, 

 setting the plants about five feet apart. Will 

 thrive in any soil, but will produce largest 

 specimens in rich. May be grown readily 

 from pieces of root. 



Poppv-itfALLOw. Sow seeds in early spring 

 in a mild hotbed or greenhouse and transplant 

 the seedlings while still small to pots or fiats, 

 and when the weather becomes settled plant 

 in any good garden soil about a foot apart. 

 Cuttings of the perennial species may be vised 

 for further propagation. 



PoRTULAccA. When the ground becomes 

 thoroughly warm, sow the seed rather 

 thickly in dry light soil in the sunniest situa- 

 tions, and thin out the surplus to about five 

 inches apart. Usually enough seed will be 

 produced to supply the succeeding season's 

 needs. The plants may be transplanted 

 while in full bloom. 



Primrose, Chinese. Sow seeds in a mild 

 hotbed or greenhouse in early spring, so as 

 to have flowering plants by winter. Suc- 

 cessional sowings may be made until early 

 Slimmer. Choose light, fibrous potting soil 

 finely sifted. Prick off the seedlings as soon 

 as large enough, first to flats, and when they 

 have three or four leaves to small pots. 

 Give shifts of pots as required. They should 

 be in five or six inch pots by late autumn. 

 They do best at temperatures below fifty 

 degrees and with plenty of food in the form of 

 liquid manure, which should be gi\-en only 

 when the pots in which they are to blossom 

 are full of roots. When in blossom they may 

 be taken to the living-rooms. They do better 

 thus managed than if removed earlier. 

 Other "indoor" primroses may be grown 

 similarly. 



Prince's-feather {Aniarantiis). Sow 

 seeds in poor soil well exposed to the sun as 

 soon as the ground becomes warm. Thin the 

 seedlings to stand eighteen or more inches 

 apart. Dwarf varieties should stand closer. 

 In rich soil the colours of the foliage and of 

 the flower heads are less brilliant. 



Pueraria Thunbergiana. Sow seeds near 

 porches, verandas, or very large trellises. 

 They may be started under glass in pots and 

 the seedlings transplanted when the weather 

 has become settled. The perennial tuberous 

 roots may be used after the plants have 

 become established, or cuttings may be 



rooted. From Washington southward the 

 tops may live over winter. 



Puschkinia. Plant the bulbs hke those 

 of Scilla and Chionodoxa. 



Ravenna Grass. Sow seeds in late winter 

 or early spring in the greenhouse or mild 

 hotbed. When the plants are Jarge enough, 

 transplant to small pots and make one or two 

 shifts before setting in the garden when 

 the weather becomes settled. Allow four 

 or more feet between plants. Select a warm 

 place in ordinary garden soil. After becoming 

 established the plants may be propagated by 

 division. 



Reed, Giant {Arundo Donax). Sow seeds 

 in mild hotbed or greenhouse in early spring 

 and transplant to small pots. When the 

 weather becomes settled plant in ordinary 

 soil eight feet apart as a background for 

 smaller plants. Dwarf varieties may be set 

 four feet apart. If desired, established 

 clumps may be divided. 



Rock-cress. See Cress and Aubrietia. 



Rocket, Sweet {Hesperis). In early 

 spring sow seeds where the plants are to 

 remain or in a border for transplanting. 

 Allow about eighteen inches between plants, 

 which will form clumps. These may be 

 divided when necessary for further propaga- 

 tion. 



Rose, Christmas (Hellebcrus). Plant the 

 rootstocks in any good soil, rich, sandy 

 loam preferred. Moisture and shade are 

 favourable. The plants need no further 

 attention than annual manuring, and should 

 be undisturbed for years. 



Rose of Heaven. See Lychnis. 



Rose. See Chapter XVIII. 



Rose, Rock. See Sun-rose. 



RuDBECKiA. Sow sceds in spring either 

 in the garden or earlier vmder glass. Trans- 

 plant as the plants become large enough, 

 either to pots, nursery beds, or to permanent 

 quarters. Any soil or any exposure suits 

 them. After once becoming established the 

 clumps may be divided in spring. 



Rye, Wild. See Elymus. 



Sacaline (Polygonum Sachalinensc) . Sow 

 seed where the plants are to remain. Rather 

 moist, rich soil is most favourable. Very 

 likely to become a pest from the spread of its 

 underground stems. 



Saffron, Meadow. See Colchicum. 



Sailor, Ragged. See Corn-flower. 



Salpiglossis. Sow seeds in late winter; 

 transplant seedlings when about two inches 

 tall to small pots. Keep them growing 

 steadily; avoid any kind of check. Set in 

 light, rich, deep, moist soil when danger of 

 frost has passed. They need about eighteen 

 inches space. Seed may also be sown where 

 the plants are to stand and the excess thinijed 

 out. For winter bloom the seeds may be 

 sown in midsummer or later, and the plants 



