Garden lime is a rock powder used to raise the pH level of soils high in acidity.
Lime adds calcium, which in turn helps plants absorb trace elements such as zinc, copper and others. It's highly effective against distorted, crinkled leaves and leaves that are yellow or turn yellow over time.
To apply lime to individual plants, loosen the soil around the plants carefully to avoid injuring roots and work the lime into the soil with your hands or a small gardening trowel. Mix thoroughly with potting media.
It’s usually best to lime your soil early and allow it to work its way into the soil over the weeks.