Roses and the rainy season in Japan?
I know traditionally gardens in Japan don't have lots of flowers, but if a person wanted to plant such a garden in Japan, roses, peonies, poppies, etc.(add some cottage garden elements), how would the plants be effected by the rainy season in June? Do all the petals fall off? Are the plants just fine, only wet? Does it delay summer bloomers? I guess I am not sure how much/how hard it rains. Is there anyone here from Japan, or who knows who I could ask? I have done a lot of research on the web, but I can't find an answer to such a specific question (not in english anyway). I very much want to know, planting times, and blooming times of year, as compared to here, Northeast U.S.A. Does it rain all day, or just a shower? Do people still work the soil, plant seeds, seedlings, prune in this rain, or is there a pause in gardening for June?
Any help would be greatly appreciated. Thank you.