When to cut my new hedge
I planted a double row hornbeam hedge, 100 plus plants 3 years ago, now almost 7 feet tall, (I've replaced a few which didn't take with some bare root plants this spring so 3/4 feet tall).
I've clipped the tops to control the height, but have yet to cut the two sides.
When should I do this?
And how often/when each year?
Intend to buy an electric hedge trimmer in next few days
Thank you very much