Tropicals & Tender Perennials: fertilizer, 1 by Kaufmann

Kaufmann wrote:
I use this brand and have been very happy with it:

Green Light Iron & Soil Acidifier

High concentration of chelated iron.
Contains a combination of ingredients to produce quick and long-lasting results.
Corrects iron deficiency in chlorotic plants and lawn grasses (indicated by yellow leaves).
Easy to apply with garden sprayer.
Contains iron plus copper, sulfur and zinc.
Available in quart and gallon bottles.