What year do you plan to have your wedding? The reason I ask, peonies and roses take some time to establish to bloom--sometimes several years, and would be considered a permanent planting. I would also caution you, that what bloomed in April one year, might bloom in June the next. Hopefully, someone who has personal knowledge of the Morristown area will be able to help you. Perhaps contact your local garden nurseries, garden clubs, or local master gardeners (try your local County extension for master garderner information). Congratulations and good luck to you!

Thanks for your response! I'll check the local nurseries and see what ideas they can give me.

I have been tracking this in my garden on my blog.
Feel free to check out my bloom schedule: http://koskashostas.wordpress.com/2010-bloom-schedule/

By no means is it complete, but it's based mostly on what is in my own garden.

Here is a link that might be useful: Bloom Schedule

Thank you Melissa!! This helped a lot.. : )