Thanks for your soon reply.
You do try your best to find out many important details,such as “mow down on June 1st work fine”,GA3 does not help,etc.
Itoh peonies do bloom quickly and have quite short vase life. Still there are some methods to extend the life of the Itoh peony.
In China, we also find some varieties can rebloom at early automn.

Hello Linda,

Yes I have. It has always worked, although some additional remarks can be made. One year I’ve cut them down in the same month three times, to spread the flowering time in Summer. Each 10 days later meant far fewer flowers. Here in Belgium peonies usually flower in May, with most of the lactifloras around 20-30 May. Canary Brilliants…Read More

Dear Sir,
Have you done the reblooming experiments from 2018 to 2021?
Are there any new progress?
Looking forward to your kind share.