Read more: Plants You Shouldn't Grow Right Next To Your House Thuja Green Giant trees can be planted in a row, keeping 5 to 6 feet of space between each tree. For a full privacy screen ...

Phytophthora in Thuja initially manifests as browning and drying out of the needles, starting from the lower parts and progressing upwards. The disease weakens the plant, slows its growth and ...