Your Jasmin is lovely, adorable! A plant that reminds me of my ...perfumed childhood, especially during the warm summer nights...
You should know anyway, that instead of buying new Jasmins every year , you can do either of these things:
1-- To buy either : a) The Jasminum Officinale, the common frost hardy Jasmin (-10C), especially performing in our climates. It only becomes big , and starts having many flowers from its second year on. It blooms throughout the good season. It appreciates protected , warm spots, anyway.Or :
b) The Jasminum Beesianum, the "pink" frosthardy Jasmin (-10C). But this one only blooms once and really densely, in May-June. Or :
c) The Jasminum x Stephanese , the hardiest of all, -15C. It also has an abudance of "pink" blooms once, in June-July.
2-- To cut back your present, indoor variety Jasmins (:Jasminum Polyanthum), and let them hibernate in a light spot in your house. They will need very spare waterings and often watersprayings in this case. No plant food, of course, until Spring. But then, they will be extra happy , if you transplant them in slightly bigger pots with an extra good draining system.
Good luck, dear friend.
P.S. If you wish, you can google the frosthardy Jasmins in Google/Images.
"..So,perhaps, it is easiest, through awareness of flowers in particular, of their radiant beauty and purity, their vibrant colour, to come to the excellence of the One and be uplifted beyond thought to our divine selves".Dorothy Maclean