Hydrangea, climbing and bush

(Question)

Hi TMG
Some leaves on most of my hydrangea are turning lime green
in between the veins?? Quick Fire is not exhibiting this proble

(Answer)

This condition is known as chlorosis and is usually caused by a deficiency of minerals, usually iron. Plants growing in lime or alkaline soils may have trouble taking up enough iron and other nutrients because the calcium in the soil lacks them.  Glyn Church, author of Hydrangeas (Firefly) recommends the application of aluminium sulphate and/or iron sulphate or powdered sulphur to control the problem. This will lower the pH of the soil and make the iron more readily available to the plant. Sometimes tap water can be high in alkaline. More additional information please refer to the following websites: www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/environmental/iron-chlorosis.aspx