Does anyone have any tricks to make a Boston fern fuller?

I have a Boston fern that a friend gave me as a baby plant. I have cared for it for 2 years but I can't get it to become a full plant. It has leaves and seems healthy but it is a skinney plant. Any ideas how to make it a full beautiful plant?

Does anyone have any tricks to make a Boston fern fuller?
EACH YEAR I BUY 2 BOSTON FERNS FOR MY NORTH FACING PORCH. FIRST THING I DO IS REPOT THEM INTO A LARGER,DEEPER POT. I NEVER USE MIRACLE GROW OR ANY OTHER STORE BOUGHT FERTILIZER, ABOUT ONCE A WEEK I MAKE A POINT TO USE EGGS IN SOMETHING, I SAVE ONLY THE SHELLS AND PUT THEM INTO A 2 QUART PITCHER FILLED WITH WATER, SOAK OVERNIGHT, TAKE EGG SHELLS OUT AND USE THE WATER TO EQUALLY WATER EACH FERN. MY FERNS USUALLY MEASURE ABOUT 8 FT AROUND AND 4 FT LONG. IT'S UNREAL I'M TELLING YOU. MY GRANDMA TAUGHT ME THIS TRICK, I WATER WITH NORMAL WATER EVERY OTHER DAY UNTIL IT RUNS OUT THE BOTTOM, ONCE A WEEK WITH EGG WATER.
Reply:Have you tried repotting it. Take it out of its pot and make sure it isn't root-bound. Add some fresh dirt and water with a little miracle grow
Reply:Repot. Use potting soil that has the fertilizer already mixed in. Then make sure it gets some morning sun. Depending on where you live it might be able to take an hour or six. But if you have had it in a rather shaded area you can gradually increase the exposure to light. You should see new growth pretty soon...but remember after transplanting it will make new roots before it has new top growth...and that is what you want. Healthy roots mean a healthy plant.


Hope this helps.
Reply:Repot it, use black rich soil with lots of sun light. Don't use M. Grow. Use a plant fertilizer called Four All Seasons, you can get it at www.biosourcefertilizer.com, it will give your fern that extra nutrients it needs that soil can't regularly produce.