Curling leaves on my plants

Asked July 11, 2017, 4:19 PM EDT

I planted the attached plants in the Fall of last year. In the spring I noticed the leaves started to bubble and crinkle. They haven't really grown but haven't died. We added new mulch in the Spring. Any idea what I should do to help make the plants healthy.

Anne Arundel County Maryland herbicide damage hostas japanese maple too much mulch

1 Response

We viewed your photos. This looks does not look an insect or disease issue. This looks like abiotic issue such as too much mulch, environmental, poor planting techniques, site conditions, drought, etc. See our publication on these types of problems http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG86%20Common%20Abio...

All of the plants have excessive mulch around the base of the trunks or stems. Make sure mulch is no thicker than several inches and keep away from the trunks and stems.
Check the soil moisture of the plants at least once a week. Soil that is moist or damp is fine. You may need to probe with a screwdriver.

The plant in the right photo looks like it may have been subject to possible herbicide damage. Symptoms can include stunting, curling, etc. This may have occurred from drift and can occur from a half mile or more. There is no control. All you can do is monitor the health of the plant. http://extension.umd.edu/hgic/herbicide-damage-trees-and-shrubs
mh