Here in my garden in Southwest France they have grown like weeds this summer ! I have never before grown them myself ,but my Daughter who lives in the next house has grown them for several years. This year I heavily mulched my flower beds with compost to which she had contributed . Morning Glory plants came up everywhere, from seeds which had clearly survived the composting . An interesting thing is that although she has always grown a deep blue variety mine are a mixture of dark and light blue and pink ! There are still dozens of new seedlings but I guess I shall lose them all when the frosts begin
That sound really nice, glad you are enjoying them in your garden. If possible please take pictures and share with us, we just enjoy that too. Don't know if it's possible that you have crosses from your daughter mg's. I also loose mine to frost and am lucky when I get surprise volunteers the next year.