Answer: You are in USDA gardening zone 6. Your Miss Kim lilac is a slow growing plant, reaching only 6-8' tall and wide at maturity. It will bloom when it establishes itself in your landscape. Just be a little patient with it and you'll be rewarded with beautiful flowers.
As for pruning your standard lilac, here are a few things to keep in mind: Lilacs develop flower buds during the summer months for the following year's floral display so if you prune, be sure to prune immediately after the current flowers are spent. Lilacs produce flowers on new shoots so if you want your plant to always produce lots of flowers, you'll want to prune it back each year. Otherwise, the stems and branches will grow quite long and you'll only have flowers at the tips of the branches. So, after your plant has finished blooming, snap off the spent flowers. Cut back any suckers (thin upright branches coming from the base of the plant; shorten a few of the longest center stems to open the center of the plant up to good air circulation. Wherever you snap off a spent flower you can expect to get two new flowering branches.
Hope this answers all your questions!
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