August 5, 1916 



HORTICULTURE 



169 



than one list, and in some rases these plants are given 

 their place in each list, hut 1 will confine the lists as 

 much as possible, mentioning the plants in their best 

 classification. 



General Garden Use. 



C. glomerata, 1-2 ft., blue; (;. niacrostyla, 1 1/2 ft., pur- 

 ple; C. Medium and vars., 2-3 ft., blue, pink and white; 

 C. isophylla, 3-6 in., pale blue and white; C. persicifolia and 

 vars., 2 1/2-4 ft., blue, lavender and white; C. lactiflora, 3 ft., 

 milk-white; C. rotundifolia. 6-12 iu., blue. 

 Rock Garden. 



C. Allioni, 3 in., blue; C. alpiiia, 3-8 in., blue; C. barbata, 

 6-9 in., pale blue, nodding; C. carpatica and vars., 1 ft., 

 blue and white; C. Elatines, 6 in., bluish purple; C. fragilis, 

 4 in., lavender; C. garganica, 3 in., blue and white; C. G. F. 

 Wilson, 4 in., violet blue; C. isophylla 3-6 in., pale blue 

 and white: C. rotundifolia, 6-12 in., blue; C. pulla, 3 in., 

 deep rich violet; C. pusilla, 4-6 in., blue; C. pulloides, 3-5 

 in., deep glistening violet. 



Herbaceous Border 

 C. carpatica, 1 ft., blue and white; C. glomerata, 1-2 

 ft., blue; C. grandis, 1-1 Vi ft., blue; C. medium and vars., 

 2-3 ft., blue, pink and white; C. persicifolia, 21/2-4 ft., blue, 

 lavender and white; C. punctata, 1 ft., white, spotted pur- 

 plish; C. pyraniidalis, 4-5 ft., blue and white; C. rotundi- 

 folia, 6-12 in., blue; C. sarmatica, 1-2 ft., pale blue; C. Van 

 Houttei, 2 ft., indigo or violet. 



Wild Garden. 



C. alliariaefolia, li'o-2 ft., white; C. celtidifolia, 2V2-6 

 ft., pale blue; C. lactiflora, 3 ft., milk-white; C. macrantha, 

 3E-4 ft., dark blue; C. Rapunculoides, 2-3 ft., lilac; C. ro- 

 tundifolia, 6-12 in., blue; C. persicifolia, 2-3 ft., blue and 

 white. 



Window and Pot Culture. 



C. Medium and vars., 2-3 ft., blue, pink and white; 

 C. Portenschlagiana, 6 in., blue purple; C. persicifolia, 21/5-4 

 ft., blue, lavender and white; C. pulla, 3 in., deep rich violet; 

 C. pyramidalis, 4-5 ft., blue and white. 

 Curiosities. 



C. punctata, 1 ft., white spotted purplish; C. macrostyla, 

 1-2 ft., pale purple; C. Zoysii, 3-4 in., azure blue; C. rotundi- 

 folia var. soldanelaeflora, 6-12 in., blue. 



Campanulas demand a good garden loam, in some 

 cases free from all traces of lime, and do best in partial 

 shade. They may be raised from seed sown in the open 

 ground in May or from the greenhouse, transplanted 

 in May. They should be lightly sown and very lightly 

 covered, kept near the light at about 60 degrees, shading 

 them during germination at mid-day. Watering should 

 be carefully done, especially during dark and damp 

 weather. As soon as the seedlings are large enough to 

 handle they should be pricked off and when grown 

 should be gradually hardened off before transplanting 

 to the open ground. The choice varieties cannot be ex- 

 pected to come true from seed and the best way to 

 handle them is by cuttings or division. Some varieties 

 are not possible to divide and cuttings will have to be 

 used to increase the stock. Cuttings and divisions 

 should be made in early spring. 



Winter covering should be provided to all Campanu- 

 las. South of N"ew York this may consist merely of 

 evergreen boughs, but north of that point it is well to 

 provide an ample covering of leaves, at least two inches 

 thick. All covering should be put on after the ground 

 has frozen and should not be ivmoved until there is little 

 danger of the thermometer going below 20 at niglit. Re- 

 moving the covering from plants too early in the spring 

 is often the cause of loss of valuable species, for with the 

 first warmth of spring they start into growth, only to 

 be killed back by the first hard frost. 



' — ^f 



Jamaica Plain, Mass. 



Potentilla 



POTENTIIiA NEPALENaS, MiSS WiLLMOTT. 



Confronted with well grown specimens of the various 

 now garden hybrids of potentillas the interest of the 

 average plant lover is aroused at once. The foliage, in 

 form digitately three to seven foliolate, in some instances 

 resembling strawberry leaves in miniature, is ornamental 

 and resistant. In habit of growth most species are 

 spreading at the base, ascending at tlio ends and when 

 fully develo]ied appear in handsome loose bush shape 

 requiring little or no staking. Adorned with tlieir fair 

 sized single or double blossoms in brilliant tints of red 

 or golden yellow the desire is there to acquire and try a 

 few and I am not aware of any instance where the 

 purchase has been regretted. The bowers at no time 

 appear in the profusion necessary for a real color mass 

 effects but the flowering season mostly extends from 

 June until frost. 



Potentillas will be found very useful subjects for our 

 perennial borders. The new hybrids of cinquefoils, the 

 common name for potentillas, prefer the open sunny 

 exposure. Their strong root system extending deep into 

 the ground enables plantations to withstand excessive 

 heat comparatively well. Not exacting as to soil, they 

 thrive best in high slightly sandy ground. The new 

 garden hybrids are not merely fillers but merit space 

 especially in gardens where variety of material is ap- 

 preciated. Of the species and varieties I have been grow- 

 ing so far Potentilla nepalensis "Miss Willmott" has 

 proved one of the best. Reaching an average height of 

 about 18-inches its many bright cerise single blossoms 

 attract attention. The photograph onr illustration was 

 made from indicates the free-flowering ])nbit. Other 

 single varieties of value are atrosanguinea, rich crim- 

 son; formosa, rosy red, and pyrendiea producing rich 

 golden yellow blossoms. The double flowering hybrids 

 appear in yellow, orange and red shades. Of named 

 varieties I mention as desirable acquisitions, Vulcan, 

 rich crimson and William Rollison bright vermilion. 



For the benefit of rockgarden enthusiasts interested 

 in the low creeping species I wish to call attention to 

 Potentilla ambigua and ehrysocraspcda, both flowering 

 in June, producing dense sheets of color by legions of 

 little yellow blossoms. 



The herbaceous cinquefoils referred to in this note are 

 easily raised from seed. The seedlings as a rule do not 

 flower until the second year. Being very hardy, poten- 

 tillas do not need much of winter protection except in 

 northern states where leaf covering is advisable. 



Glenside, Pa. 



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