If your junipers are dying from the inside out, you may have spider mites. In some cases, the browning may go from the bottom to the top. Shake the foliage closest to the brown area over a white piece of paper. The spider mites could be too small to see, so lightly brush your finger over the spots on the paper. If you see red streaks, that is spider mite blood and you know you have spider mites. A bad spider mite infestation will require the use of a miticide to completely control.
Your variegated Privet or variegated Euonymus is turning solid green. This can happen with most variegated plants. It is reverting to it’s original color. As with all variegated plants the green stems will be more vigorous than the variegated stems, so they will grow faster and over take the variegated stems if left to grow. Also, if you plants are not getting enough sunlight, it can cause it to revert back to the original green color because the green leaves will have more chlorophyll and be able to convert more sunlight to energy. Make sure your variegated plants have enough sunlight and keep the solid green stems pruned out.
Hedges should be pruned wider at the base than they are at the top. By pruning them this way, you are giving the bottom branches the maximum amount of sunlight. If possible use lopping shears to prune instead of hedge trimming shears or power trimmers. Give you hedges more light inside the canopy by planting them a little further apart. They will grow denser and more compacted than if they are crowed together and are loosing inside leaves due to lack of light. Ideally you want your shrubs planted as far apart as they will be allow to grow in height. If they will end up being trimmed to 6 feet tall, then plant them 6 feet apart. Consider letting them grow as naturally as possible with little trimming for utmost health. Visit Tree & Shrub Care Quick Tips for more Shrub tips like this!