Bare patches can be caused by a lack of sunlight, or even other plants brushing up against the cedar. Q : We had to severely prune back a shrub between two very tall columnar cedars, and now there are large bare spots showing on the cedars where they were pressed against it.
Will this grow back now? A : Yours is not an uncommon problem. Cedars can be burdened with bare spots for a number of reasons. No matter how or where the bare spots are on your cedar, there are actions that you can take to repair and improve the aesthetics of the plant.
First, keep hedging cedars trimmed regularly. The sides as well as the top need shearing annually, at the very least. This will keep the trees relatively rigid and prevent some of the problems that can be caused by snow load during the winter months. Top pruning at planting time would actually tend to decrease root growth, plants are integrated systems organisms just like us.
Mites and root rot both most likely to appear during hot weather. Ron B , Oct 10, Thanks for your advice. Glad we found this forum now - would have been better to find it before we planted! Could the apparently inadequate drainage also be a result of overwatering? Because of the slope in our yard we may have been trying too hard to get the roots soaked during the summer.
And when the yellowing started, we thought it was too dry, so we really went at it with the soaker hoses. If we dug a trench with a ditch witch right beside and filled it with drain rock, or something along those lines, could that help? Either now or with future trees. Thanks again - jen.
Hi Joshjen. The rule of thumb with any plantings is that you must incorporate your garden's native soil in with the new soil you are using for the planting.
If you have average or poor soil i. It's not so much that you're overwatering, but just that your new soil can't drain properly into your native soil as Ron B said, your amended planting hole is acting as a sump , especially in heavy rainfalls and in wintertime, as water "backs up" and will in time start to rot your plant's roots. This is due to the size of the plant and its extensive root system, which should remain undisturbed, as much as possible.
It was an appropriate time to transplant your cedars 4 days ago, when the soil had warmed up and the chance of frost was minimal so that should not be an issue. Most likely your problem is caused by under-watering.
Cedars are relatively shallow rooted so they are susceptible to drought stress. Your plants seem to be a good size.
The root balls could have dried out in their containers or burlap before you purchased them. Watering thoroughly is key for helping cedars take root. Continue to give them a thorough watering once or twice a week. At the same time you want to avoid the roots sitting in water, so good drainage is vital. You mentioned that you mixed the soil to loosen it. Hopefully you amended your soil enough to make it porous and crumbly. It is recommended that you plant cedars at the same level at which they were growing previously or even higher.
This will allow water to drain away. Ontario winters are also a challenge due to frigid temperatures and drying winds causing desiccation and browning, as well as moisture loss. Having said that — hang on to your receipts.
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