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I planted 5 flowering pear trees. The leaves are drying out and dying. What can I do to make sure the trees do not die from transplant shock?

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A

Newly planted trees need water, because their root systems are not very substantial and don't have the surface area to absorb water.  Sometimes depending on the tree roots at time of planting (bare root, balled and burlapped, or container grown) watering may vary, but still is most critical for establishing good root systems.  With warmer and windy days, more water is transpired through leaves and adequate water must be available at the root zone.  Drip or slow delivery of water over a long period is better, such as spiraling a soaker hose 4" from the trunk and spiral out, to encourage root growth and get good soil penetration of water.

Very important to water newly planted trees well, but not saturate the soil, because oxygen also has to be in the soil for proper root growth.  Here is a link to USU Publication on Efficient Irrigation of Trees and Shrubs, click on http://extension.usu.edu/files/publications/publication/HG-523.pdf

Posted on 1 Jun 2009

Maggie Shao
Horticulture Agent, Salt Lake County

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