Answer: In my experience it takes about five years for a seedling gorwing in a cold winter area such as yours to make a really nice display. Keep in mind too that it blooms on new growth of the season, so do not trim it during the summer months. Here is some additional information about mimosa trees that you may find interesting. You may need to cut and paste the complete url into your browser to make it work correctly.
Enjoy your mimosa!
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