Transplanting Landscape Trees

Douglas L. Airhart & Guy Zimmerman III

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Right Tree / Right Place

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[ Planting Depth ] [ Time of Year ] [ Preparing the Root Mass ] [ Final Transplanting Inspection ]

Transplanting Landscape Trees- Introduction:

Can you name 10 reasons to plant trees? Click here for the answers.

Many people, including landscape architects, landscape contractors and maintenance professionals, discount the importance of the process and techniques of transplanting trees. The transplanting process is critical to the successful establishment and future health of the tree.

Unfortunately, lots of books have information and diagrams that are incorrect, outdated and contrary to recent recommendations. Using these old procedures will eventually cause direct damage to the tree, or jeopardize the health of the tree.

The information presented here is based on the most recent research and recorded observations of successful techniques. For example, recent studies about transplanting trees have indicated that smaller trees transplant more easily and more successfully than larger diameter trees. They are lighter and easier to handle, they are less likely to be dropped or damaged in transit and they are more likely to have adequate roots to support their crown.

Successful transplanting depends on three main factors:

root zone moisture level and watering, (see below)

planting depth in a proper hole, and

time of year for planting.

Root zone moisture and watering

The root mass needs adequate moisture levels to supply the leaves and stems for turgor (rigidity). The general rule applied here is that the tree should receive an inch of rain weekly, and if it doesn’t rain, you must irrigate to supply the difference. At least three to five gallons of water is suggested. A common error that will prevent successful establishment is to stop irrigating the tree too early in its development.

How long should you continue to watch the tree for wilting conditions? Arnold (1993) indicated that irrigation may be needed for as long as 3 years after transplanting. This amount of time is not the usual concern of most landscapers, but you should inspect the condition of the root zone regularly and keep up the irrigation if you want the tree to survive. The report also indicated that more time will be needed for establishment if you are planting large (3 to 4 inches) caliper trees or if you are planting trees in northern latitudes.

(Figure 4-0) Deep Watering

This diagram demonstrated two possible techniques for deep watering trees during establishment.

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Purpose Right Tree / Right Place Selecting Trees Transplanting Trees Mulching & Staking Summary Diagram Pruning Trees Topping Hurts! Protecting Trees Tree Root Myths Pine Bark Beetles Live Christmas Trees Glossary List of Figures List of Video Vignettes Related Links Bibliography

TLCforTrees.info is maintained by: Douglas Airhart, Ph.D. Certified Arborist & Jeff Plant, Ph.D, Last Updated on: 07/11/03