Amelanchier lamarckii, also called juneberry, serviceberry leaves problem


Hello! I am a new one owner of 3 juneberries. Here in Poland it is not a popular plant. I hope someone can help me identifying one problem. Trees have been planted this year, like 4 weeks ago. They are already 3 meters tall. It’s the end of May and some of the leaves are getting red and orange. I can’t see on them any spots etc. it used to have lots of flowers and I can see small green fruits already. What could be the cause of such situation? Many many thanks.


Thank you for contacting Toronto Master Gardeners.  Note that our advice is geared to gardeners in Toronto, Ontario, Canada as growing conditions in Poland may differ from Canada.

Given these are newly planted trees, I suspect the leaves on your Amelanchier lamarckii (Juneberry) are turning red and orange due to the stress of transplanting them.  Amelanchier lamarckii prefer full sun to partial shade.  They thrive in rich, moist, acidic, well-drained soil.  Juneberry trees do not grow well in clay soils.  Ensure that your trees are getting enough sunlight, plenty of water (especially until they are established), and are planted in the proper soil.  You may want to add a layer of mulch around the trees to help retain water, regulate the root temperature, and suppress weeds.  Just remember to keep the mulch away from the trunk of the trees.  Check to see if your trees are planted at the right depth.   Planting too deeply could result in the death of the tree in the first few years.

Newly published Toronto Master Gardener guidance for Planting Trees:   Planting a Tree for Life

A good publication from LEAF:  Transplant Shock

Plant care and maintenance of Amelanchier can be found at:  Growing Serviceberries

There is also more information on Amelanchier (Serviceberry) on the Toronto Master Gardeners website.  Insert “Serviceberry” into the Search Ask A Master Gardener box for previous questions and answers.

Hopefully with time your Juneberry trees will adjust to their new location and begin to thrive. If your trees continue to struggle, you should contact a local certified arborist.

May 18, 2022