Japanese maples with yellowing & dying leaves - Ask Extension
We have three Japanese coral bark maples (Acer Palmatum, “Sango Kaku“) that have yellowing leaves and many leaves that are dry and dead around the...
Knowledgebase
Japanese maples with yellowing & dying leaves #880569
Asked August 07, 2024, 2:48 PM EDT
We have three Japanese coral bark maples (Acer Palmatum, “Sango Kaku“) that have yellowing leaves and many leaves that are dry and dead around the edges. One was planted last year. Two were purchased this spring and are still in pots. They get partial direct sunlight. We live close to the beach. The largest percentage of “burned“ leaves are on the south side, so maybe just sunburn? Any suggestions and treatment will be appreciated.
Clatsop County Oregon
Expert Response
This looks like it is probably drought stress.
Here is an article from the Oregon Department of Forestry with helpful tips - "Watering. Your Trees" - https://www.oregon.gov/odf/Documents/forestbenefits/watering-fact-sheet.pdf
Here also is an Oregon State Extension article on trees and drought stress - https://extension.oregonstate.edu/gardening/flowers-shrubs-trees/how-drought-stress-affects-landscape-trees
Maybe you already planned to do this, but if not, late fall is a good time to plant the two potted trees in the ground. If they get a chance to develop their root system, they'll be better suited to withstand drought when drier times return. Here's an Oregon State Extension publication that discusses tree site selection and planting - "Selecting, Planting and Caring for a New Tree" - https://extension.oregonstate.edu/sites/default/files/documents/ec1438.pdf
Here is an article from the Oregon Department of Forestry with helpful tips - "Watering. Your Trees" - https://www.oregon.gov/odf/Documents/forestbenefits/watering-fact-sheet.pdf
Here also is an Oregon State Extension article on trees and drought stress - https://extension.oregonstate.edu/gardening/flowers-shrubs-trees/how-drought-stress-affects-landscape-trees
Maybe you already planned to do this, but if not, late fall is a good time to plant the two potted trees in the ground. If they get a chance to develop their root system, they'll be better suited to withstand drought when drier times return. Here's an Oregon State Extension publication that discusses tree site selection and planting - "Selecting, Planting and Caring for a New Tree" - https://extension.oregonstate.edu/sites/default/files/documents/ec1438.pdf
Bill, thank you very much for your response, your expertise, and your service.
On Aug 9, 2024, at 12:58 PM, Ask Extension <<personal data hidden>> wrote:
You're welcome.
