Use fresh ginger in a recipe?

My mom gave me this recipe:

2/3 cup raw sugar

2 cups whole wheat pastry flour

1 tsp baking soda

6 tsp ground ginger

1/2 tsp salt

1 stick butter at room temp

1/4 cup molasses

2/3 cup sugar

1/4 cup grated fresh ginger

1 large egg

1-1/2 cups minced crystallized ginger

zest of 1 orange or 2 lemons

Place the raw sugar in a bowl and set aside.

Mix flour, baking soda, ground ginger and salt. Melt butter in a pan; add molasses, sugar, fresh ginger. Then mix in the egg. Add to dry ingredients. Then add crystallized ginger and zest, then stir.

For each cookie, take about a tablespoon of dough and roll it in a ball. Flatten a little, then dip it in the raw suger, pressing to coat it.

Bake in preheated 350 degree oven on greased or parchment-covered cookie sheets for 8 to 10 minutes.