What's Wrong With My Blue Atlas Cedar? | Sublime Garden Design

What’s Wrong With My Blue Atlas Cedar? | Sublime Garden Design

February 16, 2018

Should you’ve seen a Blue Atlas Cedar or personal one, you understand that these evergreens supply stunning silvery, blue foliage that shines vibrant within the panorama. You’ve additionally in all probability come throughout one or two that look just a little unhealthy. One of the frequent issues we see with Blue Atlas Cedars (Cedrus atlantica ‘Glauca’) are the browning of its needles. This may be attributable to a number of various things:

  • Flagging- that is when only some of the branches’ foliage turns brown and it’s often on the periphery and might be scattered all through the tree as a substitute of in bunches. Flagging happens naturally in cedars in late summer season/early fall and they’re going to shed previous foliage to prepare for brand spanking new development. This isn’t trigger for alarm.
  • Bugs reminiscent of spider mites or weevils- spider mites eat the foliage and make tiny webs for his or her eggs and weevils burrow into the bark and lay their eggs within the bark. Each trigger the foliage to show yellow or brown
  • Sapsuckers- these are a small species of woodpecker that poke holes in trunks of bushes to get sap and bugs out to eat
  • Root rot- that is attributable to fungus in overly damp soil
  • Fungus/bacteria- some fungi may cause blights which kill foliage whereas different fungi and micro organism may cause cankers, needles will begin turning a pink/brown shade when this occurs
  • Over or below watering
Blue Atlas Cedar Browning

How do I repair these issues?

  • Flagging- since this happens naturally you don’t have to fret an excessive amount of about it. It might assist to water your Blue Atlas Cedar extra typically. You too can prune off the flagging areas and it received’t hurt the tree.
  • Spider mites- to see in case your Blue Atlas Cedar may need spider mites, take a white piece of paper and place it under a department the place inexperienced foliage meets brown foliage. Faucet the department above the paper. Should you see tiny purple/orange dots crawling on the paper, these are spider mites. One option to make spider mites go away is through the use of a powerful spray of water everywhere in the tree to get them off the tree. If the water isn’t working, you should utilize a neem oil spray or you could possibly consider including in helpful bugs reminiscent of girl bugs or lace wing flies that can go after the spider mites.
  • Weevils- to test for Weevils or different borers, take a look at the trunk and branches of the tree to see if there are any pin sized holes (the holes might also be oozing a sap-like substance). You should use a neem oil spray to fight them.
  • Sapsuckers- the holes that sapsuckers make will look similar to weevil holes however generally they’re larger. You’ll be able to hold sapsuckers at bay by inserting reflective gadgets by the tree, reminiscent of pinwheels, to scare them away.
  • Root rot- one option to test to see in case your tree has root rot is to tug upward on the tree to see if it begins to tug out of the bottom simply. If it does and the foundation ball is usually gone, your Blue Atlas Cedar could also be affected by root rot and means the roots is probably not functioning anymore. Generally it’s potential to avoid wasting the tree from root rot by altering the soil across the tree so it has higher drainage and making use of a fertilizer. In lots of circumstances although, you’ll have to take away the tree.
  • Fungus/bacteria- to see in case your Blue Atlas Cedar could have cankers, search for a discolored indent within the bark of the tree. If cankers are left unattended, they will swell and girdle branches and the trunk. You’ll be able to take away cankers by pruning them off throughout chilly climate. In case your tree is affected by blight (attributable to fungi), be sure to’re cleansing your pruning instruments earlier than shifting on to different vegetation to stop the unfold of the fungi. You’ll wish to prune and discard the contaminated elements of the tree together with any branches that will have fallen to the bottom. As a result of this fungi is often unfold by water and infrequently occasions in wetter than regular Springs, make it possible for the Blue Atlas Cedar is positioned in well-drained soils and doesn’t have standing water round it.
  • Over watering- this could be a reason behind root rot. Should you’re noticing that the world round your tree is overly moist on a steady foundation, strive scaling again the quantity of water you’re giving by both dialing again on how typically you water and/or the length of watering.
  • Beneath watering- Blue Atlas Cedars have pretty shallow roots in order that they should be watered typically within the first couple of years that they’ve been planted. If the soil is sandy or drains actually shortly or if it’s been excessively sizzling out, it is best to test the soil round your tree to see if it’s getting sufficient water. The soil ought to be moist about 1 inch under the floor. To repair this subject, merely water your Blue Atlas Cedar extra typically and/or for longer durations of time. As soon as established, Blue Atlas Cedars can tolerate delicate durations of drought.
  • It might additionally assist to speak along with your garden/panorama upkeep firm about what fertilizers or different therapies are being positioned close to the tree to see if there is perhaps different causes your Blue Atlas Cedar is browning.
Blue Atlas Cedar Problems


What are your tried and true methods of protecting your Blue Atlas Cedar wanting stunning and blue?


Organized below Training, Evergreen Foliage, Backyard Upkeep, Backyard Suggestions & Recommendation, Plant DIseases. Labeled as blue atlas cedar blight, blue atlas cedar browning, blue atlas cedar flagging, Blue Atlas Cedar Issues, blue atlas cedar root rot, brown blue atlas cedar, brown needles, browning blue atlas cedar, cedar blight, flagging, fungi, how one can repair blue atlas cedar browning, sapsuckers, spider mites, weevils, what’s unsuitable with my blue atlas cedar.

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