What you are smelling is the left over chlorophyll. I would take it out of the jar and dry it in a paper bag or something. If you start to jar it up with that chlorophyll still in it, you will just cure in the grass smell and it will stay.

How dry are the buds? Can you crack a stem or do they still bend and fold? That is the important part, if they are still wet, the chlorophyll will dissipate as the h2o evaporates out.

Is your jar in regular light or in the dark? If the jar is in the light the chlorophyll stays in the tissue longer because the chemical is reactive to light.

ALWAYS dry and cure buds in the dark.