32 



House & Garden's 



Boulders and a tiny stream well combined. Notice how 



effectively the large elm tree focusses the whole effect. 



The foreground ff.owers are Phlox subulata 



rock garden can be made almost anywhere 

 upon a j)roperty, a natural site often exists and 

 needs only to be recognized. 



The ideal situation involves the finding of 

 a sequestered and sheltered part of an estate 

 Avhere sufficient but not too much sunshine can 

 be obtained and in which the plants will be 



protected from the cold 

 winds of winter. If it 

 is possible, select a 

 place with an approach 

 through the wild gar- 

 den or shrubber}'. A 

 stream should be 

 brought through the 

 garden if there is not 

 already running water. 

 A stream greatly in- 

 creases the variety of 

 plants that may be 

 grown, affords unlim- 

 ited j)ossibilities, and 

 adds much to the charm 

 of the garden. An open 

 situation, away from 

 the roots of encroaching 

 trees or tall shrubbery, 

 should be selected, with 

 sloping, undulating 

 ground and preferably 

 facing south or south- 

 east. There should be 

 no trees within fifteen 

 yards of the garden, for 

 their roots extract the 

 jilant food from the soil 

 and the dripping from 

 their branches is detri- 

 mental to most Alpine 

 plants. 



The proper building 

 of the garden is of the 

 utmost importance, and 

 should be done step by step. Remember that 

 the object of a rock garden is to grow plants 

 and not rocks. It is well to go to Nature and 

 study some natural geological formation rather 

 than try to build a second Stonehenge. Have 

 a definite design from w-hich to w'ork. Aim at 

 variety and balance in your plan and avoid 



Artificial rock-work must be handled with restraint to 



avoid grotesqueness. Quite fittingly, the entrance to this 



naturalistic grotto is flanked by tall ferns 



fussy effects. Place your stones so that the 

 finished effect will reproduce in small rock 

 gardens some portion of an Alpine scene, and 

 in medium sized or large ones the scene in its 

 entirety but on a small scale. 



In placing the rocks remember that the ob- 

 ject is to make the visible ones appear to be 



Iris f'littiHa (dwnrf iris) : 4"-8". deep violet, blooms 

 May. • 



Iris pumila Horida: 6", lemon yellow, blooms May. 



Iris pumila formosa: 6"-8", light and dark violet, 

 blooms May. 



Liiium Havitm (yellow flax) : l'-2', yellow, blooms 

 Jiincjuly. 



Liiwtm pcrciinc (perennial flax) : 1', blue, blooms June- 

 August. 



Lychnis Haagcana (shaggy lychnis): 8"-12", red, 

 blooms June-August. 



Lysimachia ■nummularia (moneywort) : l"-2", yellow, 

 blooms June-July. 



Mcrtensia virginica (mertensia) : 18", blue, blooms 

 May-June. 



Myosotis palustris scmperfiorens (forget-me-not): 8", 

 blue, blooms May-September, 



Myosotis alpcstris: 3"-8". blue, blooms May-September. 



S'cpcta glcchoma (ground ivy): 3", bluf, blooms May- 

 June. 



Oenothera missourictisis (Missouri evening primrose) : 

 l'-2', yellow, blooms June-August. 



Octtothcra ccspitosa (syn. margin ata) : 9", white, 

 blooms July-September. 



Oenothera fruticosa Yonngti: 18", yellow, July-Octo- 

 ber, 



Oenothera taraxacifolia (syn. acaulls) : 6"-9", white 

 changing to rose, blooms July-October. 



P achy sand r a terminalis (spurge) : 6"-9"» greenish 

 white, blooms May -June. 



Papaver alpinum (Alpine poppy) ; 6", white, blooms 

 May-June. 



Papaver nudicaitlc (Iceland poppy): 12", white, yel- 

 low, orange, red, blooms May-C)ctober. 



Peutstemoti digitalis (beard tongue) : 4"-S", white, 

 blooms August-(^ctober. 



Phlox amoena (hairy phlox): 4"-6", bright rose, 

 blooms May -June- July. 



Phlox diiaricata (wild sweet william ) : 12", lilac, 

 blooms April-May. 



Phlox dii'aricata alba: 4"-6", white, blooms May, 



Phlox siihtilala (moss pink): 4"-6", various pink, 

 blooms April -May- June, 



Phlox subulata rosea: 3"-6", rose, blooms April-May. 



Plumbago larpentae (lead wort) : 6"-12", deep blue, 

 blooms August-September. 



Podophyllum pcltatum (May apple): C"-8", 

 blooms April-May, 



Polemouium reptaus (Jacob's ladder) : 6"-8", light 

 blue, blooms April-May. 



Polygonatum multiftorufn (Solomon's seal ) : 6"-12", 

 greenish white, blooms April-June. 



Primula Sieholdii (primrose): 6"-12", white and vari- 

 ous, blooms April-May. 



Primula veris (cowslip): 6"-9", canary yellow, blooms 

 April-May. 



Pulmonaria angustifolia (blue cowslip) : '6"-12", blue, 

 blooms May, 



Pulmonaria saccharata (lungwort): l"-2", pink chang- 

 ing to blue, blooms May-June. 



iRauunculiis repeus rf, pi. (creeping double buttercup)'. 

 6"-12", yellow, blooms May-August. 



Sanguinaria canadensis (bloodroot) : 6", white, blooms 

 April-May. 



Santolina incana (lavendar cotton): 18", silvery white 

 foliage, 



Saxifraga crassifolia (saxifrage): 12"-15", pink, blooms 

 AprilMay-June, 



r.axifraga cordifolia: 12", lilac-purple, blooms April- 

 May. 



Scdum acre (stonecrop) : 2"-3", yellow, blooms May- 

 June. 



Sedum spectabile (showy stonecrop) : 18". lavender- 

 pink, blooms September-October. 



Scdum stoloniferum : 6", purplish pink, blooms July, 



Silcne alpcstris (catch-fly): A", white, blooms July- 

 August. 



Spiraea filipendula (drop wort) : 15", white, blooms 

 June-July. 



Trillium erectum (wake-robin): 12"-18". purple, blooms 

 April-May, 



Trillium granditlorum : 12"- 18", white. April-May. 



Trollius curopaeus (globe flower): 18"-2', pale yellow, 

 blooms May-August. 



Tropaeolum polyphyllum (nasturtium): trailing, orange 

 yellow, blooms June-July. 



J'eronica Allionii (speedwell): 6", blue, blooms May- 

 June, 



Veronica spicata l'-18", bright blue, June-July. 



Vinca minor (periwinkle or myrtle): 6", evergreen, 



Viola cor nut a (tufted pansy) : 5 "-8", various, blooms 

 April to frost. 



bite. PLANT MATERIAL FOR THE BO(; GARDEN' 



9"-r 



't golden yellow, 



deep yellow. May. 

 (andromeda) : 2'-3', 



yellow 

 blooms 



vhite 



Adonis amurcnsis (pheasant's eye) 

 blooms "March-May, 



Adonis pyrenaica: 1 

 May. 



Adonis zcrnalis: 9"-l', 



Andromeda fioribunda 

 blooms early May. 



Andromeda poly folia: 1', pink, blooms May. 



Anemone alpina (anemone): 6"-l', white, blooms May. 



Arcthusa bulbosa (arethusa) : 8", rose-purple, blooms 

 May, 



Aaalea amoena (azalea) : 12"-15", rosy crimson, 

 blooms May. 



Acalea hinodcgira: 12", brilliant red, blooms May- 

 June. 



Azalea procumbens: 2' -3', pink, blooms April-May. 



Azalea rosacHora: 3't salmon, blooms April-May. 



Azalea vaseyi 3' -4', light pink, blooms early May, 



Berberis empctrifolia (barberry): 18"-2', orange. 



Boltonia latisquama var. nana (false chamomile) : 2', 

 pinkish lavender, blooms August-September. 



Calceolaria plantaginea (calceolaria) : 12", yellow, 

 June-August. 



Caltha palustris (marsh marigold): 1', yellow, blooms 

 April-May. 



Caltha monstrosa H. pi.: 12", white, blooms April-May. 



Caltha parnassifolia: 12", yellow, blooms .\pril-May. 



Campanula hcderacea (bellflower): 3", bluish purple, 

 blooms May-June. 



Convallaria majalis (lily-of-the-valley) : 8". 

 blooms May -June. 



Cypiipediuni spectabile (lady's slipper): 8" 

 blooms May. 



Daphne blagayana: 12", creamy white, blooms April- 

 May. 



Daphne cneorum (garland flower) : 12", rose, blooms 

 May-June. 



Daphne Genkwa: 3', lilac, blooms May-June. 



Daphne mccereum: 18", pink, blooms March. 



Dicentra canadensis: 6", white, blooms May, 



Dodecatheon integrifolia (shooting star) : 4 "-6", rosy 

 crimson, blooms May-June, 



Dodecatheon Jcffreyi: 18", dark rose, blooms May- 

 June, 



white. 



white. 



