I live in Tasmania's northwest coast and have four conifers, about six feet tall, planted in a line next to one another. I have noticed that some areas are turning brown. This is mainly around the bottom and one has brown appearing on the side. I was told that it may be a lack of lime in the soil. I was also told that this is normal in the summer and I should not do anything. Can you please advise me?
Why Are Conifers Turning Brown
Certified GKH Gardening Expert
It could be lack of lime, but it could also be either left over damage from winter cold or a lack of sunight. The sunlight is especially true if the tree or shrub is affected on the bottom of the plant. Sunlight does not get down to the lower branches through the upper branches and the lower limbs start to die.
Do you prune your conifers? If you do, you may have pruned the top too wide. If you do not, they may need to be pruned a bit to allow more sun to the lower branches.