By Principante
United Kingdom 
When is the best time to transplant the sambucusnigra black lace
27 Jun, 2015
Answers
I transplanted mine (bought last year) a couple of months ago and it's now flowering profusely. I don't think they are easy to kill.
How tall is yours? Is it established? If so, then it is best to wait until autumn.
27 Jun, 2015
When it has dropped all of its leaves....winter time, providing the ground isn't frozen or waterlogged.
27 Jun, 2015