Leyland Cypress: fertilizer/etc tips to get FAST growth?
I planted a privacy border of Leyland Cypress 3 years ago, probably 15 of them strategically as living fences along lot line in multiple places to block view of houses (eventually).
All trees look healthy, have on drip system here in our dry summers to encourage fast growth, what else can I do to encourage fast growth - e.g., fertilize? If so what type and when apply? I haven't done any kind of fertilizing so far. Soil is pretty nice (no clay).
Adding compost around root area a good idea? if so when best to apply?
I know Leyland are known for being fast growing but I want to get them growing like a rocket to block the neighbors (I'm in a 2-story house and they need to get quite big to block the neighbors when on the second story).
I live in Puyallup, Washington (suburb of Seattle/Tacoma).
Thanks in advance!!