PETER HENDERSON & CO., 35 S°t R !Se a t ndt NEW YORK IS 

 PERENNIAL FLOWER SEEDS FOR SUMMER SOWING— Cont'd 



POLYANTHUS (Primula Elatior) . An SWEET WILLIAM (Dianthus oarbatus) . 



early blooming- Primrose for beds or Henderson's Perfection. Large florets 



pot culture. Mixed colors 25 in a great variety of rich colors. 1 



POPPY GIANT ORIENTAL. Height 2 foot high. 



to 3 feet; flowers 6 inches across Extra choi gi , varieties mixed.. .10 



Be v^ Ut l S t 17 Crimson with Double large-flowering mixed 10 



black botch. .... .. 15 Pink Beauty. Large single pure pink. .10 



Princess Victoria Louise. Salmon scar- Scarlet Beauty. Large single scarlet. .10 



let . lb Harlequin. Large flowers of several 



Salmon Queen— Salmon— yellow 15 colors producea on one plant 10 



Rembrandt — Orange-scarlet 15 ^ * 



Mixed Colors.. Per 1,000 seeds, 60c... .10 TRITOMA TTVARIA, "Red Hot Poker 



POPPY ICELAND. The fragrant flowers Plant." 18 inches to 6 feet. Tall 



are produced from June to October. spikes of orange and crimson red 



Yellow, Scarlet, White 10 flowers very effective 15 



Mixed Colors. Per 1,000 seeds, 50c 10 New Hybrid. Yellow, orange, salmon- 



PRIMULA JAPONICA HYBRIDS. Colors pink, coral red, crimson 25 



white to pink and crimson 25 t,« V bv t-tatt-fo ^ * A * t> ^ -,- 



PYRETHRUM Hybridum. Flowers 3 PA> S Y-YIOLETS, Tufted or Bedding. 



inches across of rose, flesh, pink, {Viola cornuta grandiflora lujbrida), 



white, crimson, etc.; 2 feet high. blossoms, 2 inches across, of brilliant 



Single, Large-flowering. Mixed 15 colors. The plants form clumps. 



Double, Large-flowering. Mixed 25 Many are scented. Mixed colors 15 



SCABIOSA Hardy Varieties WALL FLOWERS. Bush perennial plants, 



Causasica Perfecta. Lilac-blue flowers, 1% feet hi h fra grant flowers. 



3 inches across on stalks 1— to 2 feet .15 La rge Double. Mixed colors 15 



Japomca. 2V 2 feet. Flowers 2 inches Large Single. Mixed colors 10 



across, beautiful mauve blue 10 



SWEET ROCKET or Dames Violet. Re- WISTARIA, Chinese. Of rapid growth, 

 sembling Stocks. Colors white, lilac, bearing in the spring immense pa- 

 pink and purple 10 nicies of flowers. Blue 10 



ROCK GARDEN COLLECTION OF SEEDS 



SUMMER IS THE BEST TIME TO BUILD A ROCK GARDEN 



Rock Gardens may be divided roughly into two classes: those made out on the open 

 ground, and those formed by utilizing a bank or terrace. If upon the open ground, mark out 

 the site with a spade, and have it irregular, with plenty of bays to afford different aspects 

 for the plants, as some prefer sunlight, others partial shade. This done, excavate the site 

 to a depth of three feet, throwing the earth to one side. Then fill the space dug out with 

 stones, shale, gravel, etc., to the former level, and replace the earth excavated, adding new 

 soil until the mound is the required height. Let it settle for a week and place the rocks in 

 position on the soil mound. If the ground is well drained, no excavating is needed. Choose 

 rocks of various sizes, placing the larger ones at the bottom, and build up. The idea is to 

 place them so they look as if thrown there by some great upheaval of the past and partly 

 buried in the ground. 



Preparations for a Rock Garden must be made ahead, if all the plants used are peren- 

 nials which will not bloom the first year. Seeds should be planted outdoors on the Rock 

 Garden in the places they are to grow early in Spring and up to July 15th. 

 ALYSSUM Saxatile Compacta. "Basket of Gold" hardy plant, large flowers, pure 



yellow, 9 inches high Pkt. 15c. 



AGROSTEMMA Coronaria. "Rose Campion." Mixed Colors Pkt. 15c. 



ARABIS Alpina. A hardy plant for rockeries; white flowers. Height, 6 inches.... Pkt. 15c. 

 AUBRETIA Hybrids Mixed. A lovely mauve Spring blooming plant; produces great 



masses of bloom. Hardy and easily grown Pkt. 25c. 



CAMPANULA Persicifolia Blue. "Peach leaved bell flower," large blossoms of 



blue or white, 2 to 3 feet high Pkt. 15c. 



CANDYTUFT Gibraltica. Blooms early; hardy, large flowers red and rose white, 



12 to 18 inches high Pkt. 15c. 



CANDYTUFT Sempervirens. Completely covered with flowers in Spring Pkt. 25c. 



CERASTIUM Tomentosum. "Snow in Summer"; white leaves, white flowers Pkt. 15c. 



COWSLIP. Spring flowering, hardy, bears variously colored clusters of fragrant flowers. Pkt. 15c. 

 DELPHINIUM Blue Butterfly. Beautiful blue variety of compact growth, blooms 



the first year if sown early. Height, 18 inches Pkt. 15c. 



GEUM Mrs. Bradshaw. A large double strain, bears brilliant crimson scarlet 



flowers. Height, 2 feet Pkt. 25c. 



HUECHERA Sanguinea or Alum Root. Flowers are a beautiful red. Bloom all 



Summer. Height, 2 feet Pkt. 25c. 



MYOSOTIS Pulutris. The popular old-fashioned blue Forget-Me-Not Pkt. 10c. 



SEDUM ACRE Stone Crop. No rockery is complete without this plant. Perennial. Pkt. 25c. 



SAXIFRAGA Mixed Colors. Known as "Rockfoil" ; invaluable for rockeries Pkt. 25c, 



HENDERSON'S COLLECTION OF FLOWERS FOR ROCK GARDENS 



Collection of 1 packet each of the 15 varieties listed above $2.50 postpaid 



LIST OF ANNUAL FLOWER SEEDS FOR A ROCK GARDEN 



The Alpine plants are really the true rock plants, but many annuals are needed to com- 

 plete a Rock Garden. So in answer to many inquiries we suggest the following varieties: 



Ageratum...Pkt. 10c. Calandrina. .Pkt. 10c. Lobelia Pkt. 10c. Verbena ... .Pkt. 10c. 



Alyssum. . . .Pkt. 10c. Dianthus. .. .Pkt. 15c. Portulaca . . . Pkt. 10c. Zinnia Lilli- 



Candytuft . .Pkt. 10c. Godetia Pkt. 10c. Phlox Pkt. 10c. put Pkt. 10c. 



FOR PERENNIAL PLANTS SUITABLE FOR ROCK GARDENS SEE PAGE 9 



