RHYMING RIDDLES

1)

Before any changes, I'm garlic or a spice,

My first letter altered, I'm a hand-warming device;

My second letter changed, I'm trees in bloom,

My next letter changed makes me a tomb.

Change my fourth letter, I'm a fruit of the vine,

Change my last, I'm a chart with plotted lines.

Answers:

1. CLOVE/GLOVE/GROVE/GRAVE/GRAPE/GRAPH