1Remove the top.
Cut the top off the pumpkin, about one-third of the way down.
2Make sure it’s level.
Trim a small amount off the bottom of the pumpkin, if necessary.
3Scoop it out.
Use a large sturdy spoon to carefully scoop out the seeds and pulp inside the pumpkin, leaving the rind intact.
4Create a base.
Put marbles or small pebbles in the bottom. The stones will allow for drainage and give you a base for building up your centerpiece.
Layer small evergreen twigs around the rim, securing them with florist's pins.
6Add seasonal blooms.
Place real or silk potted flowers in the middle of the pumpkin. Try using autumnal blooms -- like chrysanthemums or dahlias – or poinsettias for a shot of holiday color.
Remove or cut a hole in the bottom of the pot's foil wrapper, if you're using a live plant, so that you can water the plant. Water will drain onto the stones in the bottom of the pumpkin.