hans - see if any of these help. I hope you enjoy your hedge!

Here is a link that might be useful: previous threads on limelight hedge spacing

I planted 75 Limelights last year and the spacing was exactly 4' from center to center. this year, their edges are already overlapping. I expect that by next year, the outermost 30% of branches will have knitted together. I would go with 4', no closer. 5' would be OK too for economical reasons, but 6' may be too far if you want the hedge to connect within 2-3 years. In time, though, it should still connect, since Limelight is supposed to get to 8' wide, though maybe only in the outermost branches, and not densely, uniformly intergrowing.

How far did you plant them? Can you maybe show us pics to show how much they have grown?

Thanks!

Roxana, I haven't seen gardnerzone4 around recently (this is a 5 year old thread) but here's a thread on Limelight hedges. A few photos are missing, but most are there.