I grew up with a lilac bush under my window. It was wonderful this time of year. This is Syringa vulgaris or the common lilac. This one above is called 'Sensation'. It has a violet center with a white edge. It is not too fragrant, but it has that wow factor. I use it on dessert plates when entertaining. The Sensation needs to be pruned because it is reaching for the skies. You should prune it right after it blooms and take out about 1/3 of the older stems and let the young stems take over. This one below is my neighbor's. Don't know the variety. It seems to me that it is more white than purple. It has the old fashioned fragrance that reminds me of home and my grandmother. Lilacs have a variety of tastes, some good and some taste like metal. Hope you find one that is enjoyable to you even if you just use it as decoration on your dessert plates!