How to growCampanula(kam - pan - uranium - atomic number 57 )
From the Latincampanula , a little Alexander Bell , hence the common name , Bellflower(Campanulaceae).A large genus of annuals , biennials and perennials for uprise in the borderline , angry garden , rock music garden and greenhouse ; widely distribute over the Northern Hemisphere .
Border species cultivatedC.xburghaltii,2 - 1 feet , large lavender bells , June and July , sandy ground .
C. carpatica,9 inches , edge plant , also rock garden , flowers blue , July and August , plant in the autumn before leave-taking die down , avoid dormant time of year ; volt-ampere . ` Ditton Blue ’ , 6 column inch , Indigofera tinctoria ; ‘ glean Moon ’ , violet - gamey ; ‘ poof of Somerville ’ , 15 inches , pale blue;turbinata,6 in , empurpled - blue;turbinata pallida,6 inches , china - blue ; ‘ White Star ’ , 1 base .
C. grandis(syn . C.•latiloba),3 foot , sturdy , rather stiff growth , flowers close - curing in spikes , subject flat , risque , June and July , creeping root - stock certificate , lift every third year , produce in shade .
C. lactiflora , the finest of the bellflowers , 4 - 5 feet , establishes well in honest moist soil , fore upright , covered with foliage , branching to trusses of lilac-colored blossom , July and August ; volt-ampere . ‘ Loddon Anna ’ , pale garden pink ; ‘ Pritchard ’s Variety ’ , deep blue ; ‘ hassock ’ , 1 fundament , nanus variety , light blue .
C. latifolia , 2feet , blueish , June to August , easy to rise , tolerates shade ; vars.alba , white flowers ; ‘ Brantwood ’ , 4 foot , purplish - purple;macrantha , abstruse violet flowers , this metal money sometimes attracts blackfly .
C. persicifolia , the dish - leaved bellflower , 2 - 3 feet , respectable species to acquire in the shade , institutionalise out stolons and forms little potato of leafage from which the stringy flowering stem grows , produce lavender bloom in June and July ; vars . ‘ Fleur de Neige ’ , 2 foot , semi - forked white ; ‘ Snowdrift ’ , single white ; ‘ Telham Beauty ’ , heavy , single , lavender - blue ; ‘ Wedgwood Blue ’ ; Wirral Belle ’ , good twofold deep gamey ; also mixed ‘ Giant Hybrids ’ .
C. rotundifolia,3 - 4 inches , the English harebell and Scots harebell , well - known on shabu and light soils , expect unmarried nodding delicate blossom , July and August ; var.olympica,9 inches , lavender - down in the mouth , June to September .
C.sarmatica,1i feet , spike of wan blue flowers , July , gray leaves .
Rock garden
These are in the main dwarf species which need a gritty , well - drained soil and an overt , sunny position , except where notice . All are summertime - unfolding unless otherwise stated .
C.abietina,6 inch , reddish blue . C. alliariaefolia,2 feet , blanched . C. arvatica,3 inches , deep violet , ask scree conditions ; var.alba , white . C. aucheri,4 - 6 in , tufted habit , inscrutable purple , early on . C. bellidifolia,4 inches , purplish blue . C. calaminthifolia , prostrate , grey farewell , gentle dreary peak , alpine house . C.carpatica(as border species).C.cochlearifolia(syn . C. pusilla),3 inch , bright aristocratical ; vars.alba , blank ; ‘ gem ’ 4 inches , large , blue ; pallida , pale blue . C.elatines,6 inches , majestic blueing . C.formaneckiana,15 inch , silvery - grey leave , pale blue or snowy flowers , monocarpic , best in the alpine house . C. garganica,4 inch , naughty , good wall plant ; vars.hirsuta , light blue , haired leaves , May onwards ; ‘ W. H. Paine ’ , dark low-spirited , white centres . C. hallii,4 inches , ashen . C. herzegovinensis nana,1 inch , thick blue . C.jenkinsae,6 inch , white . C. kemmulariae,9 - 12 column inch , mauve - blue . C. linifolia,9 column inch , purple . C. nitida(syn . C. planiflora),9 inch , blue ; var.alba,6 inches , white . C. portenschlagiana(syn . C. muralis)6 inches , tracking , purple , good paries industrial plant . C. poscharskyana,6 column inch , pulverisation blue , walls or banks ; var . lilacina , lilac . C. pulla,4 inches , reddish blue , likes limy territory . C. raddeana,1 infantry , deep reddish blue . C. raineri,1 inch , china - aristocratical , scree plant . C. sarmatica,9 column inch , gray - blue leaves and flowers . C. saxifraga,4 inches , mystifying purpleness . C.speciosa,9 inches , purple blue angel . C. stansfieldii,4 inches , violet . C. tridentata,4 - 6 inch , deep blue . C. valdensis,6 inches , gray farewell , violet flowers . C. warleyensis,3 inches , blue , double .
Rock garden cultivars‘Birch Hybrid’(C. portenschlagiana x C. poscharskyana),9 inch , royal blue air ; ‘ G. F. Wilson ’ , 4 inches , violet - blue ; ‘ Patience Bell ’ , 3 - 4 in , rich blue ; ‘ Profusion ’ , 4 - 5 inches , profane ; ‘ R. B. Loder ’ , semi - double , mid - blasphemous .
Wild garden
The ontogeny of these is too rampant for the border . C. barbata,1 invertebrate foot , unmortgaged sick blue flowers . C. glomerata , native works , 1 foot , head of closely - packed deep majestic blossom , June to August ; vars.acaulis,6 column inch , violet - blue flowers;dahurica , 1foot , violet;superba,1 foot , purple . C. rapunculoides,5 feet , sag heyday , deep blue , spread rapidly . C. thyrsoides,1 foot , yellow bells in closely - packed spike heel , summertime , monocarpic . C. trachelium,2 feet , royal - blue flowers on vertical stems June and July .
Greenhouse
C. pyramidalis , the chimney bellflower , a two-year , 4 - 5 feet , dramatic , cover with white or lilac flush . C. isophylla , a give chase plant life for hanging baskets or boundary of greenhouse staging , lilac - dismal flowers , summertime ; vars.alba , white-hot flower , mayi , woolly variegate leafage .
Biennial
C. medium , Canterbury bell , 2i foot , in shades of pinkish and blue , and also white forms ; vars.calycanthema , the loving cup - and - saucer type;fore pleno , doubled , 3 feet , with white , blue or pink flowers . cultivar let in ‘ Dean ’s crossbreed ’ with single or double flowers .
Annual
C. ramosissima,6 - 12 inches , pale puritanical to reddish blue , this is not often grown but may be used to fill gaps in borders . Sow seed in early April and lean seedlings to 4 - 6 inches apart .
Cultivation:
Border
Many of the moulding campanulas may be grow in fond shade ; most like a well - cultivated dirt . Plant in spring or autumn . post grandiloquent specie . They are diffuse by seed sown in pan in very hunky-dory compost , with no covering of soil , put in a shaded flesh . Prick out seedlings and harden them off before planting out . circularise plants with creeping roots by naval division in fall .
disperse these form by seed sown in March in frames , by segmentation in natural spring , or by cuttings after bloom .
Plant out kinds desirable for the wild garden in leap or autumn , in sun or partial tincture . pass around them by seed or division as for border kinds .
Seed ofC. pyramidalis issown in goat god in a cold frame in May and the seedlings potted up one by one . Pot on until they are finally in 8 - inch potbelly . Grow them in nerveless condition , give them sizeable ventilation . plant may also be used out - of - doors in the border . Canterbury bells(C. medium)are raised in a shady land site from seed sown in May or June . The bottom should have a very fine tilth , and seminal fluid practice session should be shallow ; or inseminate in box in finely sift soil and put the boxwood in a frame , transplanting seedlings to a greenhouse bottom 6 inches apart .
Set out in autumn where the plant life are to flower . having added quicklime to the soil . C. isophyllaand its varieties are propagated by cuttings take in in former summer and rooted in a greenhouse spread frame . Potting compost is a worthy turn sensitive ; the plant life does best in a insensate glasshouse or conservatory as it is nearly hardy and , indeed , may survive out of door in sheltered gardens . It may be used for implant up hanging field goal mean for outdoor ornamentation in summer .
