This web site is an attempt to clarify what we know and more importantly, do not know about the blooming pattern of peonies. This is a long run project to which I hope many will contribute.

For the peony buyer, it would be better if nurseries had a common bloom period classification system. Currently, buyers will find the same cultivar classified as mid season in one catalogue and early in another. This problem carries over to peony books. If the author gathered information about bloom time from a number of sources, it is very likely that the different sources use different classification systems.

By collecting data over a long period of time and in several different locations, this project attempts to make available the information required to put in place a common bloom period classification system.

I am hoping that this web site will encourage people to contribute their bloom data and that everyone who contributed data in the past will continue to collect data in 2007 and beyond.

My plan is to produce one major update to this web site per year after new data is collected. This however could change if enough new material is forthcoming.

Michael Denny

mjdenny@sympatico.ca