We are very new to gardening and have just recently (approx 3 weeks ago) planted 12, 7-8 foot red cedars in our back yard. We were told to basically "soak" them for approx 20 min. every few days over the next few months until they established which we have been doing faithfully. In the last week or so, some of the leaves have been turning brown, then yellow and dry and can be easily broken off. I am wondering if this is normal as the roots establish themsleves or if we are doing something wrong with the watering. With doing a bit of reasearch I understand that watering deeply into the root ball less often may be better but unsure how to do this. Any advice would be greatly appreciated.