What is the best way to prevent browning on a potted Juniper shrub? - Knowledgebase Question

Glen Head, NY
Question by maryann97
October 18, 2005
I recently pruned the spiral shaped Juniper shrubs I have in planters outdoors. The shrubs get a good amount of decent sunlight and I water them when dry (every two or three days this time of year. They are in metal planters with many small drainage holes on the bottom. I noticed a lot of very dry, burned branches at the bottom of the shrubs. Should I be cutting these branches all the way back? (I am afraid of losing the shape of the shrubs)And, what is the reason for this drying / burning? Are they dying?

Any advice is appreciated.
M. Perillo

Answer from NGA
October 18, 2005


Unfortunately based on your description I am not certain what is happening to your shrubs. Root damage due to excess soil moisture can lead to browning especially at the base of the plant. This can be due to overwatering for example, or the potting mix may have deteriorated over time so it is no longer draining as well as it once did, or there could be a root disease problem. However there are also some pest and foliage disease problems that can cause browning. It is very hard to make this type of diagnosis long distance. I would suggest you work with the retailer where you purchased them and/or your county extension to try to determine what is happening. I'm sorry I can't be more specific for you long distance.

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