Planting multiple viburnums to look like one big shrub?
I am trying to create a screen around one corner of the patio to separate it from the rest of the garden.
Until now there has been a large, old escallonia that was doing the job. However, the escallonia died, which has left an empty gap in the middle of 2 other shrubs. I want to fill it with viburnum tinus (as per photo - these are Eve Price, so the smaller compact variety - label says height typically to 1.5m).
The problem I am trying to solve is how to arrange the viburnum shrubs to give the impression that they are one big (wide) plant once they grow taller. I keep reading you should plant perennials in odd numbers as it looks more natural, but does that include shrubs like Eve Price as well?
If I plant the 4 in a square configuration will that look weird? Or would it be better to get a 5th plant and maybe plant them in a circular pattern instead (1 in the middle, 4 around the edge)?
I am deliberately planting close together because it’s a horrible gaping hole at the moment and as it is the corner we mostly sit in during the summer, I don’t want to wait years before a single shrub gets big enough to act as a proper screen…
Any advice much appreciated