Brooklyn1 wrote:
"W" wrote:

What is the minimum spacing you can use between plants in a hedge
made of Photinia Red Robin? I want to be aggressive about this and
I want to maximize the density of the hedge. I am willing to have
the health of individual plants be sub optimal if that means the
hedge overall will be denser.

It's patently obvious you shouldn't be gardening, you've no patience
for plants to grow. Greater spacing between plants is *always* better
for plant health than closer spacing... that's true for all plants...
allow space for plants to attain their natural growth habit. Best to
err on the side of more generous spacing.
http://homeguides.sfgate.com/use-pho...dge-23785.html

Sorry but in the case of hedging this is not so. If you can still see the
individual plants you have a row of plants not a hedge. Even in a
generously spaced hedge each plant will be constrained to some extent by its
neighbours due to root and light competition and if you pulled it out of
that context it would look asymetrical and possible unattractive (especially
if clipped some places and not others) but in context it is fine. It is
absolutely true that greater spacing will allow plants to attain their
natural habit but that is not relevant as the aim is to grow a *hedge* not a
row of specimens. There is nothing wrong with each shrub not reaching its
full size or natural shape if the whole lot are healthy.

To the OP: don't worry about Brooklyn he treats everybody as if they were
foolish naughty children - don't take it personally.

D