Hurricane Season Preparation and Your Trees

(Updated for June 2022)

How should I prune my palms and trees to reduce storm damage during and or in preparation for hurricane season in South Florida? Usually the #1 question asked now that hurricane season has arrived. Note that no tree or palm is immune to storm impacts, but with proper pruning the chances of a tree or palm failure can be reduced. 

Be wary of individuals or companies recommending poor tree pruning practices, or operating without proper credentials, equipment, training and insurance. Some examples of poor pruning are shown in the illustration below. 

Poor Pruning Practices

Such practices put tree(s) under stress, compromise the structure and/or artificially raise the trees’ center of gravity during a storm. When selecting an arborist, be sure to ask for a copy of the company’s general liability insurance, current International Society of Arboriculture (ISA) credential, worker’s compensation insurance and to see the company’s Broward County Tree Trimmer License. Also ask for current work references. Quality companies should be more than happy to provide work references.  Companies that do not have insurance or are not registered as a Broward County Tree Trimmer should be actively avoided. 

It is recommended to have your trees inspected by an ISA Certified Arborist or ASCA Registered Consulting Arborist annually and, if no defects are found, pruning may be unnecessary. If your tree or palm requires pruning, proper tree pruning practices should be followed in accordance with local City code, ANSI A-300 (Part 1 latest edition) standards and good horticultural practices. It is important to note that all branches and debris should be properly disposed of after pruning because any debris left lying around can become airborne during a windstorm event.  

Proper Tree Pruning Practices

 
Palm Trimming

• Avoid removing any live fronds originating above the horizontal plane

Sabal palm trees; photo by thesix on Flickr

• Remove dead, dying, or diseased fronds
• Fruits and coconuts can also be removed 

Shade Tree Trimming 

• Pruning should emphasize branch reduction rather than removal for healthy trees
• Prune young trees every 3 to 4 years to produce strong branch structure; mature trees every 4-5 years
• Prune to produce/restore a single dominant trunk
• Remove dead, diseased, broken and cross branches
• Correct unbalanced tree canopies by pruning long branches back to lateral branches
• Remove, or reduce the weight on branches with included bark (i.e., bark trapped in the tight angle between two branches growing closely together).
  
  

  

Steps for a proper tree pruning cut

Do not attempt to prune trees or palms adjacent to overhead utility lines by yourself. Contact FPL or utilize an ISA certified arborist qualified to perform utility line clearance pruning.

It is generally too late to prune your trees once a storm is on its way, so contact an ISA Certified Arborist and or ASCA Registered Consulting Arborist well in advance of hurricane season. For additional information concerning proper palm and tree care please visit the following websites: 

https://www.treesaregood.org/treeowner/pruningyourtrees

http://www.davey.com/arborist-advice/articles/proper-tree-pruning/

https://hort.ifas.ufl.edu/woody/stormy.shtml

Citrix Global Day of Impact- Snyder Park

This year I had the wonderful opportunity of working alongside the Citrix volunteers for Global Day of Impact on December 8, 2017. Together we helped clear brush, remove exotic/invasive plants, structurally prune trees, collect hurricane debris and reestablish overgrown trails within the Citrix Food Forest at Snyder Park. The food forest serves as an educational tool and unique meditation space filled with edible/Florida native tree and shrub species. Future volunteer days will help increase the size of the food forest and continue to improve the experience for city neighbors and park visitors. For additional information about the Kids Ecology Corps and Citrix Global Day of Impact please visit the following web links:

https://www.citrix.com/blogs/2016/04/05/citrix-traditions-global-day-of-impact/

http://www.kidsecologycorps.org/ 

Tree Pruning Safety/ ISA Certified Arborists

 Anytime you are considering having your trees pruned remember to hire an ISA Certified Arborist with proper training and liability insurance. These are individuals/companies with the expertise and knowledge to best manage your tree canopy needs. Tree pruning is second only to electric utility work as one of the most hazardous occupations and should only be performed by those with the knowledge/experience to do it properly. However, should you choose to prune trees by yourself some common sense advice includes staying away from any tree within 15-30 feet of overhead utility lines, using proper protective equipment (hard hat, safety glasses, gloves, hearing protection, chaps etc.), using sharp and proper tools (don't use a machete to prune small tree branches, use hand pruners/lopper instead) and consult with an ISA Certified Arborist and or County Extension personnel with knowledge of proper tree pruning methods/techniques. Typically less is more when it comes to tree pruning and often times the only work needed is to remove deadwood/defects or to achieve clearance. When shortcuts are taken or you utilize an unlicensed/untrained individual or company bad things can happen. Please visit the links below to learn more about the consequences.

Images courtesy of Homestead Tree Service and Marin Independent Journal

http://fox8.com/2017/11/14/one-worker-killed-one-injured-while-trimming-tree-in-akron/

http://wbtw.com/2017/11/16/man-dies-after-falling-from-tree-in-socastee/

https://www.tcia.org/TCIA/Blog_Items/2016/An_Analysis_of_Civilian_Tree_Care_Accidents_in_2015.aspx

Post Hurricane Irma Cleanup/ Tree Replanting

Fort Lauderdale sustained some significant tree damage including downed trees and significant canopy loss. The majority of the damage is proving to be from either high winds, excessive ground saturation and or poor tree structure and lack of appropriate tree planting space. So far the tree species with the most damage include  Ficus, Tabebuia, Mahogany, Seagrape and Hong Kong Orchids.

While most of South Florida continues to clean out from under the debris generated by Hurricane Irma, here are some links to a few articles on saving your trees, tree debris cleanup for Fort Lauderdale and how to remediate storm damage.

http://www.miamiherald.com/living/home-garden/article173399206.html
http://www.sun-sentinel.com/news/weather/hurricane/fl-reg-hurricane-irma-debris-removal-20170911-story.html
http://fortlauderdale.gov/Home/Components/News/News/1580/16?backlist=%2F

http://blog.davey.com/2017/03/what-to-do-if-a-storm-damaged-my-tree/https://www.arborday.org/media/stormrecovery/4_treefirstaid.cfm

Hurricane Harvey Effects and Historic Tree Survival

Hurricanes can cause significant damage to newly installed and existing tree canopy. Trees with structural defects, those planted too deeply, improperly pruned and or planted in too small a space often experience significant storm related failures. You can reduce the potential for a storm related failure by following proper tree pruning principles and utilizing an ISA Certified Arborist to inspect your trees annually. There are also lessons to be learned from older trees that have survived multiple and or significant storm events and escaped relatively unscathed. Per the included article link below a 1,000+ year old Live Oak tree survived the effects of Hurricane Harvey with minimal damage. Note the ample growing space and robust structure of the tree, both possible factors in why the tree was able to survive.

Photograph Courtesy of the Independent US.

 http://www.independent.co.uk/news/world/americas/hurricane-harvey-oak-tree-1000-year-old-survive-tropical-storm-goose-island-state-park-a7920576.html

How to Prevent Tree Damage from Storms

Preventing damage to mature tree canopy due to storms starts with ensuring that proper tree pruning has been scheduled and completed by an ISA Certified Arborist and or company. Removal of existing hazards (cross branching, hanging limbs, deadwood etc.) and establishing a central leader when applicable should be the main priorities. Normally canopy trees should be inspected at least annually for the presence of any hazardous defects. "Hurricane" trimming of trees is not necessary every year and can actually be harmful be removing much more canopy then is necessary weakening your trees. The rule of thumb for scheduling structural pruning is once yearly for trees that are 1-7 years of age, every 1-2 years for trees 7-14 years of age and 3+ years for trees 14 years and older. For trees that have been storm damaged tree evaluation for hazard abatement is a must. Only utilize a trained ISA Certified Arborist and or company to perform this type of pruning.

For some additional tips on structural pruning for trees please see the following references:

Pruning Young Trees, Restoration Pruning, Mature Tree Pruning