Wondering how to address what looks like chlorosis in both ( August) peonies and Paniculata hydrangeas. * see photos

Question

Thank You!

Jacqueline Rogers
( I live in Montreal)

Email: [e-mail]
514 663 3759

Answer 1

This appears to be iron deficiency with the typical green leaf veins and yellow between veins. Chlorosis doesn’t usually have this pronounced difference between vein color and leaf color. A soil test is the only way to know for sure which deficiencies you have; pH can also affect whether the plant can take up elements like iron. If you decide to do testing yourself and not use a laboratory, follow the instructions exactly to get accurate results. Iron sulfate is a product that lowers pH (sulphur) and provides iron. Correcting these deficiencies doesn’t happen quickly as soil micro-organisms are involved in the process. But supplements this fall should be noticeable in next year’s growth.