What is wrong with my annual and perennial plants

What is wrong with my annual and perennial plants?

Shallow-rooted annual and perennial plants frequently have iron and zinc deficiencies caused by excessive phosphorus. Also, acid loving plants grown in neutral to alkaline soils display symptoms of deficiencies. Iron deficiencies are characterized by yellowing between the leaf veins. Zinc deficiencies show a bleaching of the tissue. Both iron and zinc deficiencies occur in the youngest tissues and can occur at the same time, which makes it difficult to identify the actual problem.

Most problems related to excessive phosphorus can be avoided by conducting soil tests and using proper fertilization. Manure and composts should be applied judiciously. Annual soil testing to monitor soil phosphorus levels is recommended. Using organic fertilizers with known fertilizer values also can significantly improve the recommended rate of application.