18 COMMERCIAL PLANT PROPAGATION 



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Salsify .............. 27, 41 Spiraea ....... 100, 179, 216 Thujopsis ............. 218 



Salvia .......... 32, 33, 175 Blue ................ 188 Thuya ........ 77, 108, 217 



cuttings .......... 71, 84 Sprekelia .............. 179 Thymus ........ 27, 31, 175 



longevity of seed ..... 27 Spruce (see Picea) . . 46, 133, Tiarella ............... 175 



time to sow ......... 178 206 Tigridia ........... 94, 179 



Sambucus .......... 85, 215 Douglas ............. 208 Tilia .............. 43, 218 



Sanguinaria ........... 175 Squashes ........ 27, 34, 41 Tillandsia ............. 96 



Sanseveria, leaf cuttings 82 Stachys ............... 175 Tobacco, ornamental 31, 178 



Santolina .......... 71, 175 Staphylea .......... 85, 216 Tococa cuttings. . . 82 



Sanvitalia ............. 178 Statice ................ 175 Tomatoes ............. 27 



longevity of seed ..... 27 longevity of seed ..... 27 time to sow ....... 41, 42 



Saponaria ............. 175 root cuttings ........ 84 pollinating .......... 59 



longevity of seed ..... 27 time to sow ......... 178 Tongue, Painted ....... 178 



root cuttings ........ 84 Stephanandra ...... 85, 216 Toothache Tree ........ 224 



Sassafras. . . .43, 85, 96, 215 Sterculia .............. 216 Torenia, longevity of 



Saxifraga .............. 175 Stevia, cuttings ........ 71 seed .............. 27 



Scabiosa ...... .... .33,' 175 longevity of seed ..... 27 time to sow ......... 178 



longevity of seed ..... 27 Stewartia ............. 216 Torreya ............... 218 



time to sow ......... 178 Stigmaphyllon ..... ... .216 Toxylon (see Maclura) 



Srhimis 215 Stocks .............. 27,33 Tradescantia .......... 175 



Schizanthus' " 33 Stokesia ........... 33, 175 Tree of Heaven ........ 182 



longevity oY seed.'.'.:: 27 longevity of seed ..... 27 Trillium .............. 179 



time- tn sow 178 root cuttings ........ 84 Triteleia .............. 179 



time t sow ......... 178 gtorax ................ Tritoma .............. 179 



*P nu P y ............ ?7Q Strawberry ......... 27, 109 longevity of seed ..... 27 



;";; . ............ *'* Strawberry Tree ....... 183 Tritonia .............. 179 



Scutellaria ............ 175 strawflower ........... 177 Trollius ............... 175 



' 7l' Qfl 'l03 'iTfi Streptocarpus ....... 31, 81 Trumpet Angel's Flower 185 



' 7? Stuartia.J ............. 216 Creeper ............. 187 



c 84 'l75 Styrax " ' ' ......... 43 ' 216 Tsuga ' .............. 218 



W^M V ..... 84 ' }m Sugar Berry ........... 189 Tuberose .......... 87, 179 



Senna, Bladder ........ 191 Sumach .. . f ........... 213 Tulip .......... 89, 92, 179 



1R9 Sunflower (see Helian- Tulip Tree ............ 201 



fi'J 82 ; thus) Tunica ............ 27,175 



' 2 time to sow ........ 177 Tupelo ............... .204 



178 Turnip ............. 27,41 



Sun Rose 

 L/b gwainsona cuttings.. . 



7 

 175 



Sweet Fern 



71 Tydsea ................ 31 



.191 Typha from seed ...... 37 



216 Ulex .................. 218 



wee ea ........... ex .................. 



lite ipTf ............ }2t Sweet Peas .......... 33 34 Ulmus ................ 218 



SL V ............ ??? longevity of seed ..... 27 Umbellaria (see Oreo- 



Sisyrmchmm ....... 175 tim * to * QW ...... 4Q 17g daphne) ............. 2 04 



Sweet Leaf 



' ?7Q treating seeds ........ 36 Ungnadia ............. 218 



mi acma ............. 179 gweet Rocket longevity Vaccinium ............ 218 



Smilax.. ........ ...... 33 o f seed .............. 27 Valeriana ............. 175 



longevity of seed ..... 27 gweet ghrub ........... Ig7 Vallota ............... 179 



time to sow ......... 40 gweet Sultan time to V anda ................ 156 



Smoke Tree. . ........ 213 sow ................ 33 Varnish Tree .......... 200 



Snapdragon (see An- Sweet William ......... 33 Japan .............. 216 



tirrhmum) Sycamore .......... 43, 207 Verbascum ......... 84, 175 



Snowball .............. 222 Symphoricarpos ____ 43, 216 Verbena .............. 33 



Snowberry ............ 216 Symplocos ............ 216 cuttings ............. 71 



Snowdrop Tree ........ 195 Syringa. . .85, 108, 206, 216 longevity of seed ..... 27 



Snow-on-the-Mountain 177 Tagetes ............... 178 time to sow ...... 40, 178 



Snow Wreath .......... 204 longevity of seed ..... 27 Verbena, Lemon ....... 33 



Solanum .............. 33 Tamarack ............. 200 cuttings ............. 70 



l9ngevity of seed ..... 27 Tamarindus ........... 217 Verbena Shrub ......... 188 



time to sow ......... 40 Tamarisk ............. 217 Veronica .............. 175 



Solidago ............ 27, 175 Tamarix .............. 217 cuttings ............ 71 



Sophora ............... 215 Tanacetum ............ 175 divisions ............ 103 



Sorbus ................ 215 Taxodium ............. 217 longevity of seed ..... 27 



Sorrel Tree ............ 205 Taxus (Yew) ....... 97, 217 Viburnum .......... 43, 222 



Soy Bean ............. 27 Tea, Labrador ......... 200 Victoria from seed ..... 38 



Sparaxis ........... 94, 179 New Jersey .......... 188 Vinca ................ 33 



Sphserogyne cuttings. .. 82 Tecoma (see Campsis) . longevity of seed ..... 27 



Spice Bush ............ 184 Thalictrum ........ 103, 175 cuttings of V. major . . 71 



Spider Plant ........... 177 Thermopsis ............ 175 time to sow V. rosea. . . 40 



Spigelia ............... 175 root cuttings ........ 84 Vincetoxicum .......... 175 



Spinach ............. 27, 41 Thorn Apple .......... 191 Viola .............. 33, 175 



New Zealand ........ 34 Thorn, Christ's ........ 205 longevity of seed ..... 27 



Spindel Tree ........... 193 Thunbergia, seed. . .27, 178 time to sow ......... 40 



