Are the needles on your redwood trees turning from green to yellow to brown, and then dropping off? Are a lot of twigs also falling off? It is normal for older needles and twigs on redwoods to drop off in the summer and fall. If the needles are turning yellow and staying yellow in summer, it indicates a need for iron which can be applied as chelates or iron sulfates. Redwood trees need to be spaced at least 7 feet apart and will require regular summer watering and occasional feeding for the first 5 years.
Tuesday, July 14, 2009
Redwood Summer Dieback
Are the needles on your redwood trees turning from green to yellow to brown, and then dropping off? Are a lot of twigs also falling off? It is normal for older needles and twigs on redwoods to drop off in the summer and fall. If the needles are turning yellow and staying yellow in summer, it indicates a need for iron which can be applied as chelates or iron sulfates. Redwood trees need to be spaced at least 7 feet apart and will require regular summer watering and occasional feeding for the first 5 years.
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