The infl uence of vernalization temperature and duration and devernalization treatments on subsequent growth and fl ower development of Campanula ‘Birch Hybrid’ and Leucanthemum ×superbum Bergman ex J. Ingram ‘Snow Cap’ was determined. In the vernalization experiment, plants of ‘Birch Hybrid’ were vernalized at 0, 2.5, 5, 7.5, or 10 °C for 2, 4, 6, or 8 weeks. ‘Snow Cap’ was vernalized at 0, 2....
