146 



HARDY PERENNIAL PLANTS 



Selected Rock Garden Plants 



The construction of a rock garden is very simple. It should be located preferably where there 

 is already a natural outcropping of rock. However, if such a site is not available, an attractive 

 garden may be built almost anywhere by following the instructions given in our pamphlet — sent 

 free on application — entitled "The Rock Garden." 



LIST OF ROCK GARDEN PLANTS 



The following varieties were selected because they usually thrive well under varying conditions. 

 Ajuga Reptang. 4 inches. Deep blue flowers in May and June. Will grow in shade. 

 Alyssum Saxatile Compactum. 12 inches. Golden yellow flowers in May and June. 

 Arabis Alpina. 10 inches. White, a good plant for shade. Blooms April to June. 

 Armeria Maritima. 3 to 6 inches. Pale pink, flowers in May and June. 

 Aubrietia Eyri. A dwarf creeping plant.' Rosy-lilac flowers in May and June. 

 Campanula Carpatica. 8 inches. Clear blue fiowers June to October. Grows well in shady places. 

 Cerasteum Tomentosunn. 10 inches. Silvery foliage and white flower. Blooms in June. 

 Crucianella Stylosa. 6 inches. Purple ball-shaped flowers in early summer. 

 Dicentra Eximia. 15 inches. Pink flowers from .^pril to fall? 

 Gentiana Andrews!. 2 feet. Intense deep blue flowers July to October. 

 Geum. Mrs. Bradshaw. 2 feet. Fiery red double flowers May to August. 

 Hepatica Triloba. Light blue flowers in spring. Grows well in shade. 

 Heuchera Sanguinea. 12 to 18 inches. Bright crimson flowers June to September. 

 Iberis. 8 to 10 inches. A good rock plant with evergreen foliage and white flowers in spring. 

 Incarvillea Delavayi. 18 inches. Large rich rose. Gloxinia-like flowers with deep yellow 



throats all summer. Grows well in shade. 

 Lychnis Haageana. 1 foot. Flowers of orange-red, scarlet and crimson. June to August. 

 Mertensia Virginica. 12 to 18 inches. Light blue fiowers changing to clear pink May and June. 

 Nepeta Mussini. 12 to 18 inches. Lavender flowers July and August. 

 Phlox Divaricata Canadense. Fragrant lavender flowers in April and May. Grows well in 



shade. Height 1 foot. 

 Plumbago Larpentae. 6 to 8 inches. Of spreading habit. Deep blue flowers from June to fall. 

 Saponaria Ocymoides Splendens. 8 inches. Bright rosy-pink flowers May to .August. 



Price for any of the above Rock Garden Plants, 25c each; $2.50 per doz.; $20.00 per 100 



Henderson's Popular Collections of Perennial Plants 



FORGET-ME-NOT COLLECTION OF 

 17 PERENNIALS Shown in Colors on p. 69 



20 



! ;2 



23 ^ / CORNER 

 GROUP OF 

 PERENNIALS 



The triangular diagram to the left illustrates a corner 

 grouping of perennials 25 by 25 by 5 feet wide. The plants 

 selected should produce an attractive and colorful display 

 through the entire season. 



\ 



10 



a 



No. on 

 Plants Plan 



6 Dianthus Barbatus 1 



4 Iberis Sempervirens. ... 2 



4 GaiUardia Grandifiora. 3 



14 Achillea the Pearl 4 



16 Plumbago Larpentae.. . 5 

 l4 Cerastium Tomentosuni6 



[5 Viola Jersey Gem 7 



Is Alyssum Saxatile 8 



r 6 Hardy Garden CarnationS 



5 Cherianthus Allioni. ... 10 



5 Phlox Enchantress 11 



6 Campanula 12 



5 Aquilegia. . . . .' 13 



Special — Corner group of 115 perennial plants for $23 



No. on 

 Plants Plan 



6 Physostegia Vivid 14 



6 Delphinium Blue But- 

 terfly 15 



4 Coreopsis Lanceolata.. .16 



5 Digitalis 17 



5 Delphinium Wrexham 



Hybrids 18 



4 Boltonia Latisquama. .19 



6 Hibiscus Giant Pink. .20 



4 Helenium Superbum 



Rubrum 21 



5 Liatris Pycnostachya. .22 

 3 Aster Skylands Queen 23 



00 



The letter prefixed to each variety is a key to the flowers shown on 

 page 69 



A. Hollyhock. Double mixed. 



B. Forget-Me-Not. Blue. 



C. Delphinium. Blue. 



D. Pyrethrum Hybridum. Mixed. 



E. Sweet William. Mixed. 



F. Hardy Phlox. Assorted. 



G. Canterbury Bells. Mixed. 

 H. Digitalis. Mixed. 



Q. Chrysanthemum. 



I. Scabiosa. Blue. 



J. Alyssum Hardy. Yellow. 



K. Coreopsis. 



L. Poppy. Hardy mixed. 



M. Aquilegia. Mixed. 



N. GaiUardia. Hardy. 



O. Carnation. Hardy mixed. 



P. Aster. Hardy mixed. 



Shasta Daisy. 



Special Offer — 1 plant each of 17 varieties for $4.00; 3 plants each of 

 17 varieties for $10.00; 6 plants each of 17 varieties for $19.50. 



THE "IMPERISHABLE" PERENNIAL FLOWER BORDER FOR $20.00 



A sketch plan for a typical hardy perennial border is shown below. To make one like it, 5 by 50 feet would require 100 plants. We list below 30 varieties 

 of contrasting heights and colors and the number of plants for each group. The number after each variety gives the position in which they should be planted. 



No. on 

 Plants Plan 



3 Lobelia cardinalis 1 



4 Digitalis 2 



2 Anchusa Italica 3 



2 Boltonia Asteroides 4 



3 Rudbeckia purpurea 5 



3 Hibiscus 6 



4 Delphinium formosum 7 



3 Helianthus multiflorus 8 



No. on 

 Plan 



Plants 



3 Hemerocallis flava 16 



3 Coreopsis Lanceolata 17 



4 Campanula 18 



4 Aquilegia 19 



3 Papavcr 20 



4 Alyssum Saxatile 21 



4 Dianthus 22 



Special Offer — The Imperishable Border Collection, 100 plants, as listed above for $20.00. Should any of the above oarietiea be told out when 

 der it filled we will tubttitute timilar tortt unlett inttructed to the contrary. 



40" ■•S 30 



Plants 



3 Baptisia Australis 9 



3 Gypsophila paniculata 10 



3 Anemone Japonica 11 



4 GaiUardia grandiflora 12 



3 Achillea the Pearl 13 



3 Pyrethrum 14 



3 Physostegia Virginica 15 



No. on No. on 



Plan Plants Plan 



Funkia variegated 23 



Heuchera sanguinea 24 



Plumbage Larpentae 25 



Arabis albida 26 



Monarda didyma 27 



Iberis 28 



Scabiosa 29 



Phlox Subulata 30 



25 



35" 



\' 12 ^'-7--:"' 13 V'""'i4- /'""i5 -><1 %-^-'-:;''\'-'''l* .X' 19 /'2oN- 



,.'' 21 / 22 ..-' 23 ^-. 24 ,'' 25 "/ 26 \ 27 / 2S V^Q ,.- 30 



i 



Planting Plan of the "Imperishable" Perennial Border 



See also The Garden Nook Coll on inside back cover. Send for free pamphlet, "Planting Plans for Perennial Borders." 



transportation charges on plants. See notice top of page 131. 



Purchaser pays 



