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Why is my coast redwood losing its needles?

8/25/2022

2 Comments

 
If it is late summer or early fall, this is a part of a natural process as an adaptation to our summer drought climate! Every year, coast redwoods undergo a process called cladoptosis, which is the shedding of whole shoots from the tree. The resulting carpet of brown needles can look alarming, but it is usually nothing to worry about. This process is a way for the tree to remove aging needles and prevent the overgrowth of lichen in the canopy. It is also one of the ways that redwoods cope with drought - in drier years the redwood will shed more shoots to reduce the amount of water the tree requires to maintain its canopy.  If your tree is healthy, then the shoots that were lost in the fall will be replaced by new, bright green growth on the tips of existing branches in the spring. 

However, if the overall canopy of your tree looks thin and sparse, or if the majority of needles on the tree are yellowing then your redwood is likely in poor health. If you are still concerned, please give us a call and we would be happy to send someone out to take a look!
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2 Comments
roofer in dc link
11/11/2022 05:52:44 am

I see so this is the reason

Reply
John Hall link
2/6/2023 06:34:29 pm

I learned why coast redwoods loses its needle in this post. Good details on the explanation and I will sure to follow your post. Thank you!

Reply



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Merlin arborist group

ISA Board Certified master Arborist WE-7670B
ISA Tree Risk Assessor Qualified (TRAQ)
CA Contractors Lic # 1040574
Registered consulting Arborist #687 (ASCA)

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WE ARE BASED OUT OF SEBASTOPOL, CA AND PROUDLY SERVE ALL OF SONOMA COUNTY 

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  • Merlin Arborist Group
  • Services
    • Structural & Aesthetic Pruning
    • Arborist Reports
    • Tree Risk Assessment
    • Tree Appraisal
    • Tree Surveys & Inventories
    • Tree Management Plans
    • Construction Impact Mitigation
    • Orchard Design, Installation, & Maintenance
    • Organic Agriculture Consulting
    • Integrated Pest Management
    • Digital Urban Forest Mapping
    • Fire Risk Reduction
  • Raptor Renesting
    • Press
  • About Us
  • Blog
  • Contact