For Silver Maples, the safest time is very early spring, just prior to bud
break (keep an eye peeled for flowering, then go for it just as the buds
swell).

Dave

"Rich Hebner" wrote in message
om...
I have a 15 year old Silver Maple that needs to have its lower
branches cut to increase the headroom underneath. When is the best
time of year to do this?

many thanks,