The Giant group, needs high light in the summer and winter. The Original and Pretty group, needs high light in the winter, but in the summer bud abortion can occur in high light so some partial shade is best.
Keep in mind there is no guarantee that this information will always work, climatic conditions will have an effect in any environment. Again, this information and the related advices of this web site are solely based on past experience and expertise and no other, and in no case shall be constructed to provide a guarantee that certain particular purpose or results will be achieved.