Freeman maple tree with chlorosis

to find a solution for use in Toronto. Suggested treatment is for application of iron chelate but Sheridan Nurseries does not carry any and doesnèt know of any sources. Need a source of iron chelate or another product that could…

Yellowing of leaves on a climbing hydrangea

I have two climbing hydrangeas on the north wall of my Toronto house, one on either side of a window. The dry soil conditions adjacent to the house apply to both. The one on the east, planted probably 30 years…

Peegee Hydrangea

The leaves have suddenly turned yellow with the veins remaining green. Zone 5b full sun. Dry. Loam…

Pagoda dogwood

I planted a young Cornus alternifolia this spring. It is about 2 feet tall, planted in sandy soil which I amended with composted manure and some peat moss at planting time, this spring. The root zone is covered with cedar…