[Николя]

Или вот. Все про посев всех видов колокольчиков

Campanula alliarifolia, carpatica, cochlearifolia (bavaria series), collina, glomerata, lactiflora, lasiocarpa, ochroleuca, parryi, piperi, persicifolia, rapunculus, raddeana, rotundifolia, sarmatica, trachelium, and versicolor , Sow at 20ºC (68ºF), germination slow small seed - do not cover
Campanula bellidifolia, betulifolia, latifolia, patula ssp. abietina, pilosa, poscharskyana, punctata, pyramidalis, rapunculoides, speciosa, takesimana, thyrsoides, and tridentata , Sow at 20ºC (68ºF), if no germination in 3-4 wks, move to -4 to +4ºC (24-39ºF) for 2-4 wks
Campanula fenestrellata, and garganica , Sow at 22ºC (71ºF) for 6 wks or more. Move to -4 to +4ºC (24-39ºF) for 6-8 wks. Then raise the temperature to 10ºC (50ºF). If no germination in 4-6 wks, repeat the cycle from the beginning. If the warm/cold cycles were not long enough, a new warm/cold cycle is needed. small seed - do not cover
Campanula aucherii, cochlearifolia, incurva, patula, portenschlagiana, pulla, pulsilla, punctata rubriflora, saxifraga, and waldsteiniana , Sow at Max. 5ºC (41ºF), germination irregular, often several months small seed - do not cover
Campanula allionii, barbata, carpatica v. turbinata, cenisia, latifolia alba, raineri, and tommasiniana, Sow at 18-22ºC (64-71ºF) for 2-4 wks, move to -4 to +4ºC (24-39ºF) for 4-6 wks, move to 5-12ºC (41-53ºF) for germination